Pub Date : 2019-09-01DOI: 10.24874/jsscm.2019.13.01.03
M. Parvathi, A. Ratnam, M. C. Raju
The present investigation represents a study on the effects of heat and mass transfer flow in the presence of couple stress coefficient, heat source parameter, radiation parameter, chemical reaction parameter and Schmidt number using nanofluids over a stretching sheet. The governing partial differential equations are reduced to ordinary differential equations with the help of suitable similarity transformations and solved numerically by Shooting method using MAT lab code under the boundary conditions. The results are illustrated through graphs and tables. The present results are compared with the results by Gosh et al. (2018) in the absence of heat source parameter, chemical parameter and Schmidt number. It is observed that the present results coincide with the results by Gosh et al. (2018) and attain good agreement. We observed that both nanofluid velocities increase due to the increase in couple stress parameter. The concentration decreases for the increasing values of the chemical reaction parameter and stretching parameter ratio and we noticed that the temperature decreases for the increasing values of the heat source parameter.
{"title":"Three dimensional boundary layer flow of water based coupled stress nanofluid over a bidirectional linear stretching sheet in the presence of heat source, thermal radiation and chemical reaction","authors":"M. Parvathi, A. Ratnam, M. C. Raju","doi":"10.24874/jsscm.2019.13.01.03","DOIUrl":"https://doi.org/10.24874/jsscm.2019.13.01.03","url":null,"abstract":"The present investigation represents a study on the effects of heat and mass transfer flow in the presence of couple stress coefficient, heat source parameter, radiation parameter, chemical reaction parameter and Schmidt number using nanofluids over a stretching sheet. The governing partial differential equations are reduced to ordinary differential equations with the help of suitable similarity transformations and solved numerically by Shooting method using MAT lab code under the boundary conditions. The results are illustrated through graphs and tables. The present results are compared with the results by Gosh et al. (2018) in the absence of heat source parameter, chemical parameter and Schmidt number. It is observed that the present results coincide with the results by Gosh et al. (2018) and attain good agreement. We observed that both nanofluid velocities increase due to the increase in couple stress parameter. The concentration decreases for the increasing values of the chemical reaction parameter and stretching parameter ratio and we noticed that the temperature decreases for the increasing values of the heat source parameter.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44214372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.24874/jsscm.2019.13.01.06
B. P. Reddy, J. Péter
In this paper, the effects of chemical reaction on unsteady MHD flow of viscous incompressible electrically conducting fluid past an impulsively started oscillating vertical plate with variable temperature and constant mass diffusion in the presence of Hall current have been presented. The dimensionless governing partial differential equations of the flow have been solved numerically by using the Crank-Nicolson implicit finite difference scheme. The numerical solutions for primary fluid velocity, secondary fluid velocity, fluid temperature and fluid concentration are plotted graphically whereas the numerical results of primary skin friction, secondary skin frictions, rate of heat and mass transfer are presented in tabular form for various parameters involved. A comparison has been provided between the present results and with the existing analytical solutions by the Laplace transforms technique. It has been found that the results of the present study are in excellent agreement with previously obtained results.
{"title":"Effects of Chemical Reaction on MHD Flow Past an Impulsively Started Infinite Vertical Plate with Variable Temperature and Mass Diffusion in the Presence of Hall Current","authors":"B. P. Reddy, J. Péter","doi":"10.24874/jsscm.2019.13.01.06","DOIUrl":"https://doi.org/10.24874/jsscm.2019.13.01.06","url":null,"abstract":"In this paper, the effects of chemical reaction on unsteady MHD flow of viscous incompressible electrically conducting fluid past an impulsively started oscillating vertical plate with variable temperature and constant mass diffusion in the presence of Hall current have been presented. The dimensionless governing partial differential equations of the flow have been solved numerically by using the Crank-Nicolson implicit finite difference scheme. The numerical solutions for primary fluid velocity, secondary fluid velocity, fluid temperature and fluid concentration are plotted graphically whereas the numerical results of primary skin friction, secondary skin frictions, rate of heat and mass transfer are presented in tabular form for various parameters involved. A comparison has been provided between the present results and with the existing analytical solutions by the Laplace transforms technique. It has been found that the results of the present study are in excellent agreement with previously obtained results.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45837957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.24874/jsscm.2019.13.01.01
M. Atashafrooz, Tahereh Asadi
This research deals with the study of the irreversibility of three-dimensional mixed convection flow in an inclined duct with step. To reach this goal, an analysis of entropy generation is carried out according to the second law of thermodynamics. The effects of buoyancy force on the flow irreversibility are analyzed with all details. The results show that the values of entropy generation number and Bejan number are intensively dependent on the Grashof number and duct inclination angle, so that the effects of Grashof number on the mentioned parameters are much higher for the vertical ducts.
{"title":"The Effects of Buoyancy Force on the Irreversibility of Three-Dimensional Step Flow in an Inclined Duct","authors":"M. Atashafrooz, Tahereh Asadi","doi":"10.24874/jsscm.2019.13.01.01","DOIUrl":"https://doi.org/10.24874/jsscm.2019.13.01.01","url":null,"abstract":"This research deals with the study of the irreversibility of three-dimensional mixed convection flow in an inclined duct with step. To reach this goal, an analysis of entropy generation is carried out according to the second law of thermodynamics. The effects of buoyancy force on the flow irreversibility are analyzed with all details. The results show that the values of entropy generation number and Bejan number are intensively dependent on the Grashof number and duct inclination angle, so that the effects of Grashof number on the mentioned parameters are much higher for the vertical ducts.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46202546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.24874/jsscm.2019.13.01.08
S. Djorovic, I. Šaveljić, N. Filipovic
Nowadays, finite element analysis is a well-assessed technique which enables investigation of blood vessels behavior under different boundary conditions. Given the rapid progression of both medical imaging techniques and computational methods, the challenge of using the simulation of human arteries such as carotid arteries to address different medical conditions and support the clinical practice can be approached. Within this context, this study investigates the recent achievements in the field of computational examinations of carotid artery and presents the method for analysis of patient-specific carotid artery model and its application for simulation of atherosclerosis progression. In particular, we focus on the patient-specific anatomical geometry reconstruction and then on the examination of the plaque progression within carotid artery, by examining the parameters such as blood velocity and shear stress distribution. This type of simulation and determination of plaque zone and its progression in time for a specific patient has shown a potential benefit for future prediction of this vascular disease using the computer simulation.
{"title":"Computational Simulation of Carotid Artery: From Patient-Specific Images to Finite Element Analysis","authors":"S. Djorovic, I. Šaveljić, N. Filipovic","doi":"10.24874/jsscm.2019.13.01.08","DOIUrl":"https://doi.org/10.24874/jsscm.2019.13.01.08","url":null,"abstract":"Nowadays, finite element analysis is a well-assessed technique which enables investigation of blood vessels behavior under different boundary conditions. Given the rapid progression of both medical imaging techniques and computational methods, the challenge of using the simulation of human arteries such as carotid arteries to address different medical conditions and support the clinical practice can be approached. Within this context, this study investigates the recent achievements in the field of computational examinations of carotid artery and presents the method for analysis of patient-specific carotid artery model and its application for simulation of atherosclerosis progression. In particular, we focus on the patient-specific anatomical geometry reconstruction and then on the examination of the plaque progression within carotid artery, by examining the parameters such as blood velocity and shear stress distribution. This type of simulation and determination of plaque zone and its progression in time for a specific patient has shown a potential benefit for future prediction of this vascular disease using the computer simulation.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44945717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.24874/jsscm.2019.13.01.04
S. R. Yazdi, T. Amiri, S. A. Gharebaghi
A Quick Adaptive Galerkin Finite Volume (QAGFV) solution of Cauchy momentum equations for plane elastic problems is presented in this research. A new damping coefficient is introduced to preserve the efficiency of the iterative pseudo-explicit solution procedure. It is shown that the numerical oscillations are not only effectively damped by the proposed damping coefficient, but also that the rate of the convergence of QAGFV algorithm increases. Furthermore, the numerical results show that the proposed coefficient is not sensitive to the spatial discretization. In order to improve the accuracy of the computed stress and displacement fields, an automatic twodimensional h–adaptive mesh refinement procedure is adopted for shape-function-free solution of the governing equations. For verification, two classical problems and their analytical solutions have been investigated. The first is a uniaxial loaded plate with holes, and the second is a cantilever beam under a concentrated load. The results show a good agreement between QAGFV and analytical method. Moreover, the direct and iterative approaches of the finite element method have been implemented in FORTRAN to evaluate the efficiency and accuracy of the presented algorithm. In the end, the corresponding results of some problems have been compared to the QAGFV solutions. The results confirm that the presented h-adaptive QAGFV solver is accurate and highly efficient especially in a large computational domain.
{"title":"A Proposed Damping Coefficient of Quick Adaptive Galerkin Finite Volume Solver for Elasticity Problems","authors":"S. R. Yazdi, T. Amiri, S. A. Gharebaghi","doi":"10.24874/jsscm.2019.13.01.04","DOIUrl":"https://doi.org/10.24874/jsscm.2019.13.01.04","url":null,"abstract":"A Quick Adaptive Galerkin Finite Volume (QAGFV) solution of Cauchy momentum equations for plane elastic problems is presented in this research. A new damping coefficient is introduced to preserve the efficiency of the iterative pseudo-explicit solution procedure. It is shown that the numerical oscillations are not only effectively damped by the proposed damping coefficient, but also that the rate of the convergence of QAGFV algorithm increases. Furthermore, the numerical results show that the proposed coefficient is not sensitive to the spatial discretization. In order to improve the accuracy of the computed stress and displacement fields, an automatic twodimensional h–adaptive mesh refinement procedure is adopted for shape-function-free solution of the governing equations. For verification, two classical problems and their analytical solutions have been investigated. The first is a uniaxial loaded plate with holes, and the second is a cantilever beam under a concentrated load. The results show a good agreement between QAGFV and analytical method. Moreover, the direct and iterative approaches of the finite element method have been implemented in FORTRAN to evaluate the efficiency and accuracy of the presented algorithm. In the end, the corresponding results of some problems have been compared to the QAGFV solutions. The results confirm that the presented h-adaptive QAGFV solver is accurate and highly efficient especially in a large computational domain.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47907184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-31DOI: 10.24874/jsscm.2018.12.02.09
M. Mahmoodabadi, F. Mahmoodabadi, M. Atashafrooz
In this paper, a numerical algorithm is presented to simulate the three-dimensional transient incompressible flow using a meshless local Petrov-Galerkin (MLPG) method. In the proposed algorithm, the forward finite difference (FFD) and MLPG methods are employed for discretization of time derivatives and solving the Poisson equation of the pressure, respectively. The moving least-square (MLS) approximation is considered for interpolation, while the Gaussian weight function is used as a test function. Furthermore, the penalty approach is applied to satisfy the boundary conditions. Moreover, in two examples, the accuracy and efficiency of this approach is compared with the exact solutions.
{"title":"DEVELOPMENT OF THE MESHLESS LOCAL PETROV-GALERKIN METHOD TO ANALYZE THREE-DIMENSIONAL TRANSIENT INCOMPRESSIBLE LAMINAR FLUID FLOW","authors":"M. Mahmoodabadi, F. Mahmoodabadi, M. Atashafrooz","doi":"10.24874/jsscm.2018.12.02.09","DOIUrl":"https://doi.org/10.24874/jsscm.2018.12.02.09","url":null,"abstract":"In this paper, a numerical algorithm is presented to simulate the three-dimensional transient incompressible flow using a meshless local Petrov-Galerkin (MLPG) method. In the proposed algorithm, the forward finite difference (FFD) and MLPG methods are employed for discretization of time derivatives and solving the Poisson equation of the pressure, respectively. The moving least-square (MLS) approximation is considered for interpolation, while the Gaussian weight function is used as a test function. Furthermore, the penalty approach is applied to satisfy the boundary conditions. Moreover, in two examples, the accuracy and efficiency of this approach is compared with the exact solutions.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41532171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-31DOI: 10.24874/JSSCM.2018.12.02.07
Toufik Barkat, Fatima Yohra Kadid, M. Aggoune, R. Abdessemed
In this paper, the behavior of a valveless, diaphragm-founded, piezoelectric micropump is studied and simulated. The nature of the piezoelectric actuator is a PZT-5H piezo-disk and the diaphragm is made of Silicon dioxide (SiO2). Applying Fluid-Structure Interaction (FSI) approach, the simulation for the valveless micropump is carried out in COMSOL 3.5 Multiphysics. Also, electro-structure mating between deformation of a piezoelectric disk due to an applied voltage and resulting displacement of the membrane is considered. From the obtained results, the optimum design required a 0.5 mm membrane and 0.5mm piezo actuator. Numerical simulations are reported to study respectively the effects of the voltage on the diaphragm deflection and the nature of the fluid on the net flow rate.
{"title":"MODELING AND SIMULATION OF A CIRCULAR VALVELESS MICROPUMP","authors":"Toufik Barkat, Fatima Yohra Kadid, M. Aggoune, R. Abdessemed","doi":"10.24874/JSSCM.2018.12.02.07","DOIUrl":"https://doi.org/10.24874/JSSCM.2018.12.02.07","url":null,"abstract":"In this paper, the behavior of a valveless, diaphragm-founded, piezoelectric micropump is studied and simulated. The nature of the piezoelectric actuator is a PZT-5H piezo-disk and the diaphragm is made of Silicon dioxide (SiO2). Applying Fluid-Structure Interaction (FSI) approach, the simulation for the valveless micropump is carried out in COMSOL 3.5 Multiphysics. Also, electro-structure mating between deformation of a piezoelectric disk due to an applied voltage and resulting displacement of the membrane is considered. From the obtained results, the optimum design required a 0.5 mm membrane and 0.5mm piezo actuator. Numerical simulations are reported to study respectively the effects of the voltage on the diaphragm deflection and the nature of the fluid on the net flow rate.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46058786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-31DOI: 10.24874/JSSCM.2018.12.02.03
N. Gupta, N. Kanth
Calendering is programmed finishing technique in the textile industry where the texture is squeezed between two or more rolls with a goal to obtain desired fragile quality, radiance and translucency. The essential guideline of calendering is to open the material to the joined impact of dampness, warmth and weight until the point texture gains an extraordinarily smooth and light reflecting surface. The essential mechanical action of the rolling calender is to cause the fibers of the web to reshape and deform around one another to get the desired smoothness. In this examination, an attempt has been made to develop a non-Hertzian nip mechanics model for finding the contact width of rolling calender and simulate this model to explore the impacts of design and process parameters such as load applied, bulk modulus, bonding time, diameter of the roll and cover thickness on contact width.
{"title":"ANALYSIS OF NIP MECHANICS MODEL FOR ROLLING CALENDER USED IN TEXTILE INDUSTRY","authors":"N. Gupta, N. Kanth","doi":"10.24874/JSSCM.2018.12.02.03","DOIUrl":"https://doi.org/10.24874/JSSCM.2018.12.02.03","url":null,"abstract":"Calendering is programmed finishing technique in the textile industry where the texture is squeezed between two or more rolls with a goal to obtain desired fragile quality, radiance and translucency. The essential guideline of calendering is to open the material to the joined impact of dampness, warmth and weight until the point texture gains an extraordinarily smooth and light reflecting surface. The essential mechanical action of the rolling calender is to cause the fibers of the web to reshape and deform around one another to get the desired smoothness. In this examination, an attempt has been made to develop a non-Hertzian nip mechanics model for finding the contact width of rolling calender and simulate this model to explore the impacts of design and process parameters such as load applied, bulk modulus, bonding time, diameter of the roll and cover thickness on contact width.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49327638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-31DOI: 10.24874/JSSCM.2018.12.02.06
K. Chergui, Hacene Ameddah, H. Mazouz
The Hip resurfacing prosthesis is subjected to different stresses resulting from the different positions of the human walk, thereby generating dynamic stresses that vary with time, leading the implant material to fatigue failure. It is important to study the fatigue behavior of the prosthesis material and to ensure its long lifetime. We proposed a new composite material named CF/PA12 composed of carbon fibers with a polyamide 12 resin, whose biocompatibility had been demonstrated in laboratories. In this study, we investigated the static and dynamic behavior at different Gait cycle positions of a Hip resurfacing prosthesis entirely made of new CF/PA12 composite. A fatigue behavior will be deducted by a Finite Element Analysis using the commercial SolidWorks software compatible with the Abaqus finite element code. Static and dynamic analysis were conducted considering normal walking and climbing stairs loading at different Gait cycle percentages of 2, 13, 19, 50 and 63%. The results obtained showed that Hip resurfacing prosthesis fully made of new CF/PA12 composite was very far from fatigue and therefore from failure.
{"title":"BIOMECHANICAL ANALYSIS OF FATIGUE BEHAVIOR OF A FULLY COMPOSITE-BASED DESIGNED HIP RESURFACING PROSTHESIS","authors":"K. Chergui, Hacene Ameddah, H. Mazouz","doi":"10.24874/JSSCM.2018.12.02.06","DOIUrl":"https://doi.org/10.24874/JSSCM.2018.12.02.06","url":null,"abstract":"The Hip resurfacing prosthesis is subjected to different stresses resulting from the different positions of the human walk, thereby generating dynamic stresses that vary with time, leading the implant material to fatigue failure. It is important to study the fatigue behavior of the prosthesis material and to ensure its long lifetime. We proposed a new composite material named CF/PA12 composed of carbon fibers with a polyamide 12 resin, whose biocompatibility had been demonstrated in laboratories. In this study, we investigated the static and dynamic behavior at different Gait cycle positions of a Hip resurfacing prosthesis entirely made of new CF/PA12 composite. A fatigue behavior will be deducted by a Finite Element Analysis using the commercial SolidWorks software compatible with the Abaqus finite element code. Static and dynamic analysis were conducted considering normal walking and climbing stairs loading at different Gait cycle percentages of 2, 13, 19, 50 and 63%. The results obtained showed that Hip resurfacing prosthesis fully made of new CF/PA12 composite was very far from fatigue and therefore from failure.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42990760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-31DOI: 10.24874/jsscm.2018.12.02.08
P. C. Reddy, M. C. Raju, G. Raju
The present work reveals the examination of the characteristics of MHD free convective radiating fluid past a permeable plate with the occurrence of thermal transmission and heat source/sink along with changeable concentration and temperature. An exact solution has been employed by usual Laplace transform technique. The effects of diverse parameters on flow velocity, hotness and concentration are discussed through graphical representations and tables. With the incidence of heat source, the fluid velocity and temperature increases whereas the concentration decreases. The velocity and temperature falls down in the incidence of heat drop. Escalating values of Soret number serves to enhance the velocity and species concentration but an opposite nature is found with Schmidt number. The current study is well supported by the verification of previously published results.
{"title":"MHD NATURAL CONVECTIVE HEAT GENERATION/ABSORBING AND RADIATING FLUID PAST A VERTICAL PLATE EMBEDDED IN POROUS MEDIUM–AN EXACT SOLUTION","authors":"P. C. Reddy, M. C. Raju, G. Raju","doi":"10.24874/jsscm.2018.12.02.08","DOIUrl":"https://doi.org/10.24874/jsscm.2018.12.02.08","url":null,"abstract":"The present work reveals the examination of the characteristics of MHD free convective radiating fluid past a permeable plate with the occurrence of thermal transmission and heat source/sink along with changeable concentration and temperature. An exact solution has been employed by usual Laplace transform technique. The effects of diverse parameters on flow velocity, hotness and concentration are discussed through graphical representations and tables. With the incidence of heat source, the fluid velocity and temperature increases whereas the concentration decreases. The velocity and temperature falls down in the incidence of heat drop. Escalating values of Soret number serves to enhance the velocity and species concentration but an opposite nature is found with Schmidt number. The current study is well supported by the verification of previously published results.","PeriodicalId":42945,"journal":{"name":"Journal of the Serbian Society for Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48916871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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