Poly Karmakar, Sanatan Das, Rabindra Nath Jana, Oluwole Daniel Makinde
{"title":"振动里加通道中的弱电离流体在强烈电磁旋转下的动态响应","authors":"Poly Karmakar, Sanatan Das, Rabindra Nath Jana, Oluwole Daniel Makinde","doi":"10.1007/s10404-024-02764-6","DOIUrl":null,"url":null,"abstract":"<div><p>The utilization of external magnetic or electric fields, particularly through a Riga setup, markedly enhances flow dynamics by mitigating frictional forces and turbulent fluctuations, thereby facilitating superior flow management. Such improvements are especially beneficial in optimizing the operational efficiency of machinery and turbines. Our research focuses on the behavior of a weakly ionized fluid within a porous, infinitely extended Riga channel (or electromagnetic channel) set in a rotational framework affected by Hall and ion-slip electric fields. This model integrates the cumulative repulsions of an abruptly applied pressure gradient, electromagnetic forces, electromagnetic radiation, and chemical reactions. The physical configuration of the model features a stationary right wall and a left wall subjected to transverse vibrations, establishing a complex flow environment. This scenario is analytically modeled using time-dependent partial differential equations, with the Laplace transform (LT) method applied to achieve a closed-form solution for the flow controlling equations. Through detailed graphical and tabular data, the study explores the impact of various pivotal parameters on the model’s flow traits and quantities. Our results indicate that an upswing in the modified Hartmann number significantly enhances fluid flow within the channel, with the primary flow component showing marked improvement as Hall and ion-slip parameters amplify, and secondary flow component diminishing. Additionally, species concentration lowers with higher Schmidt numbers and chemical reaction rates, while an expanded modified Hartmann number correlate with enhanced shear stresses at the channel wall. Moreover, an elevation in the radiation parameter reduces the rate of heat transfer (RHT) at the vibrating wall, whereas RHT at the stationary wall improves. This study has profound implications across several fields, notably in fusion energy research, spacecraft propulsion systems, satellite operations, aerospace engineering, and advanced manufacturing technologies.</p></div>","PeriodicalId":706,"journal":{"name":"Microfluidics and Nanofluidics","volume":"28 10","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dynamic response of a weakly ionized fluid in a vibrating Riga channel exposed to intense electromagnetic rotation\",\"authors\":\"Poly Karmakar, Sanatan Das, Rabindra Nath Jana, Oluwole Daniel Makinde\",\"doi\":\"10.1007/s10404-024-02764-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The utilization of external magnetic or electric fields, particularly through a Riga setup, markedly enhances flow dynamics by mitigating frictional forces and turbulent fluctuations, thereby facilitating superior flow management. Such improvements are especially beneficial in optimizing the operational efficiency of machinery and turbines. Our research focuses on the behavior of a weakly ionized fluid within a porous, infinitely extended Riga channel (or electromagnetic channel) set in a rotational framework affected by Hall and ion-slip electric fields. This model integrates the cumulative repulsions of an abruptly applied pressure gradient, electromagnetic forces, electromagnetic radiation, and chemical reactions. The physical configuration of the model features a stationary right wall and a left wall subjected to transverse vibrations, establishing a complex flow environment. This scenario is analytically modeled using time-dependent partial differential equations, with the Laplace transform (LT) method applied to achieve a closed-form solution for the flow controlling equations. Through detailed graphical and tabular data, the study explores the impact of various pivotal parameters on the model’s flow traits and quantities. Our results indicate that an upswing in the modified Hartmann number significantly enhances fluid flow within the channel, with the primary flow component showing marked improvement as Hall and ion-slip parameters amplify, and secondary flow component diminishing. Additionally, species concentration lowers with higher Schmidt numbers and chemical reaction rates, while an expanded modified Hartmann number correlate with enhanced shear stresses at the channel wall. Moreover, an elevation in the radiation parameter reduces the rate of heat transfer (RHT) at the vibrating wall, whereas RHT at the stationary wall improves. This study has profound implications across several fields, notably in fusion energy research, spacecraft propulsion systems, satellite operations, aerospace engineering, and advanced manufacturing technologies.</p></div>\",\"PeriodicalId\":706,\"journal\":{\"name\":\"Microfluidics and Nanofluidics\",\"volume\":\"28 10\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microfluidics and Nanofluidics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10404-024-02764-6\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microfluidics and Nanofluidics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10404-024-02764-6","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
Dynamic response of a weakly ionized fluid in a vibrating Riga channel exposed to intense electromagnetic rotation
The utilization of external magnetic or electric fields, particularly through a Riga setup, markedly enhances flow dynamics by mitigating frictional forces and turbulent fluctuations, thereby facilitating superior flow management. Such improvements are especially beneficial in optimizing the operational efficiency of machinery and turbines. Our research focuses on the behavior of a weakly ionized fluid within a porous, infinitely extended Riga channel (or electromagnetic channel) set in a rotational framework affected by Hall and ion-slip electric fields. This model integrates the cumulative repulsions of an abruptly applied pressure gradient, electromagnetic forces, electromagnetic radiation, and chemical reactions. The physical configuration of the model features a stationary right wall and a left wall subjected to transverse vibrations, establishing a complex flow environment. This scenario is analytically modeled using time-dependent partial differential equations, with the Laplace transform (LT) method applied to achieve a closed-form solution for the flow controlling equations. Through detailed graphical and tabular data, the study explores the impact of various pivotal parameters on the model’s flow traits and quantities. Our results indicate that an upswing in the modified Hartmann number significantly enhances fluid flow within the channel, with the primary flow component showing marked improvement as Hall and ion-slip parameters amplify, and secondary flow component diminishing. Additionally, species concentration lowers with higher Schmidt numbers and chemical reaction rates, while an expanded modified Hartmann number correlate with enhanced shear stresses at the channel wall. Moreover, an elevation in the radiation parameter reduces the rate of heat transfer (RHT) at the vibrating wall, whereas RHT at the stationary wall improves. This study has profound implications across several fields, notably in fusion energy research, spacecraft propulsion systems, satellite operations, aerospace engineering, and advanced manufacturing technologies.
期刊介绍:
Microfluidics and Nanofluidics is an international peer-reviewed journal that aims to publish papers in all aspects of microfluidics, nanofluidics and lab-on-a-chip science and technology. The objectives of the journal are to (1) provide an overview of the current state of the research and development in microfluidics, nanofluidics and lab-on-a-chip devices, (2) improve the fundamental understanding of microfluidic and nanofluidic phenomena, and (3) discuss applications of microfluidics, nanofluidics and lab-on-a-chip devices. Topics covered in this journal include:
1.000 Fundamental principles of micro- and nanoscale phenomena like,
flow, mass transport and reactions
3.000 Theoretical models and numerical simulation with experimental and/or analytical proof
4.000 Novel measurement & characterization technologies
5.000 Devices (actuators and sensors)
6.000 New unit-operations for dedicated microfluidic platforms
7.000 Lab-on-a-Chip applications
8.000 Microfabrication technologies and materials
Please note, Microfluidics and Nanofluidics does not publish manuscripts studying pure microscale heat transfer since there are many journals that cover this field of research (Journal of Heat Transfer, Journal of Heat and Mass Transfer, Journal of Heat and Fluid Flow, etc.).