Pub Date : 1900-01-01DOI: 10.23967/marine.2023.081
N. Hutchins, J. Monty, J. Will, I. Aliman, B. Nugroho, I. Utama, I. Suastika, H. Henriyadi, T. Mulia
{"title":"Improved methodology for estimating the drag penalty due to hull roughness: Part I current challenges, roadblocks and proposed solutions.","authors":"N. Hutchins, J. Monty, J. Will, I. Aliman, B. Nugroho, I. Utama, I. Suastika, H. Henriyadi, T. Mulia","doi":"10.23967/marine.2023.081","DOIUrl":"https://doi.org/10.23967/marine.2023.081","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116519423","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 : 1900-01-01DOI: 10.23967/marine.2023.106
L. Dipilato, C. Ramirz, B. Pineiro-Aramburu, R. Lanos, T. Gaudiot, G. Lombardi, M. Farnesi
Cavitation is a complex phenomenon that inevitably takes place in high-speed foiling. As such, designing a hydrofoil specifically for supercavitation is mandatory when striving for high speeds, but doing so with common engineering tools is slow and inefficient. To achieve the World Sailing Speed Record, Syroco and Cubit had to research more advanced and faster tools to design the most efficient foil for the sailboat that will be used for the world record. Said tools were developed over a long collaborative research, during which many different approaches to simulate supercavitating hydrofoils with Finite Volume Methods (FVM) have been tested, leading to an innovative optimization procedure to find the best 2D section with a compromise between hydrodynamic and structural properties. Performing a 3D optimization using FVM was quickly
{"title":"Optimization of 3D Hydrofoil Using a Cavitating Lifting Line Method","authors":"L. Dipilato, C. Ramirz, B. Pineiro-Aramburu, R. Lanos, T. Gaudiot, G. Lombardi, M. Farnesi","doi":"10.23967/marine.2023.106","DOIUrl":"https://doi.org/10.23967/marine.2023.106","url":null,"abstract":"Cavitation is a complex phenomenon that inevitably takes place in high-speed foiling. As such, designing a hydrofoil specifically for supercavitation is mandatory when striving for high speeds, but doing so with common engineering tools is slow and inefficient. To achieve the World Sailing Speed Record, Syroco and Cubit had to research more advanced and faster tools to design the most efficient foil for the sailboat that will be used for the world record. Said tools were developed over a long collaborative research, during which many different approaches to simulate supercavitating hydrofoils with Finite Volume Methods (FVM) have been tested, leading to an innovative optimization procedure to find the best 2D section with a compromise between hydrodynamic and structural properties. Performing a 3D optimization using FVM was quickly","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126591422","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 : 1900-01-01DOI: 10.23967/marine.2023.035
A. Soydan, W. Wang, H. Bihs
{"title":"An Improved Direct Forcing Immersed Boundary Method for Simulating Floating Objects","authors":"A. Soydan, W. Wang, H. Bihs","doi":"10.23967/marine.2023.035","DOIUrl":"https://doi.org/10.23967/marine.2023.035","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127110090","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 : 1900-01-01DOI: 10.23967/marine.2023.002
J. Gutiérrez-Romero, P. Romero-Tello, B. Servan, A. Lorente-Pérez
{"title":"Parametric roll prediction based on Machine Learning strategies","authors":"J. Gutiérrez-Romero, P. Romero-Tello, B. Servan, A. Lorente-Pérez","doi":"10.23967/marine.2023.002","DOIUrl":"https://doi.org/10.23967/marine.2023.002","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126804001","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 : 1900-01-01DOI: 10.23967/marine.2023.105
Lucas Legagneux, Maurits van den Boogaard, Benoit Mallol
The high lift required to raise foiling vessels above water is generated by increasing the flow velocity, thus decreasing the static pressure. If the saturation point is reached, cavitation begins to appear with the formation of vapor. Depending on the pressure drop, cyclic detachments of the vapor cavities from the surface can be observed. This phenomenon is referred to as shedding and is critical to the performance of a hydrofoil on fast vessels. Characterizing these cavitation dynamics is essential for the design, but modeling this highly turbulent, dynamic, and unstable two-phase flow is a challenge. On top of the complexity of the non-cavitating flow, there is the need to properly capture low pressure regions and vapor cavities. This typically requires a very fine mesh with small cells in a large volume to make sure the discretization is high enough to capture vapor cavities during the entire cycle. Additionally, the use of computationally heavy models such as (I)(D)DES and LES is increasingly common in the literature to study complex cavitation cases. Present work studies the use of Adaptive Grid Refinement (AGR) in Fine™ Marine on RANS simulations, to reduce the computational cost while increasing the precision. The automatic high-frequency mesh adaptation ensures an optimum number of cells at any given time, with the right refinement at any given location. It is achieved by using an interface-capturing criterion (between water and vapor) combined with the Hessians of both pressure and velocity. The previously successful application of this method on steady-state cases like ship resistance [1] and on the unsteadiness present in foil ventilation [2] paved the way for the application to cavitation. To validate the quality of the results, simulations have been performed on the well-known Delft Twist 11 test case and compared with two campaigns of tunnel testing carried out by Bouziad [3] and Foeth [4], as well as computational results from literature. Excellent agreement is obtained with the dynamics observed in
{"title":"Improved accuracy in cavitating flows using adaptive grid refinement","authors":"Lucas Legagneux, Maurits van den Boogaard, Benoit Mallol","doi":"10.23967/marine.2023.105","DOIUrl":"https://doi.org/10.23967/marine.2023.105","url":null,"abstract":"The high lift required to raise foiling vessels above water is generated by increasing the flow velocity, thus decreasing the static pressure. If the saturation point is reached, cavitation begins to appear with the formation of vapor. Depending on the pressure drop, cyclic detachments of the vapor cavities from the surface can be observed. This phenomenon is referred to as shedding and is critical to the performance of a hydrofoil on fast vessels. Characterizing these cavitation dynamics is essential for the design, but modeling this highly turbulent, dynamic, and unstable two-phase flow is a challenge. On top of the complexity of the non-cavitating flow, there is the need to properly capture low pressure regions and vapor cavities. This typically requires a very fine mesh with small cells in a large volume to make sure the discretization is high enough to capture vapor cavities during the entire cycle. Additionally, the use of computationally heavy models such as (I)(D)DES and LES is increasingly common in the literature to study complex cavitation cases. Present work studies the use of Adaptive Grid Refinement (AGR) in Fine™ Marine on RANS simulations, to reduce the computational cost while increasing the precision. The automatic high-frequency mesh adaptation ensures an optimum number of cells at any given time, with the right refinement at any given location. It is achieved by using an interface-capturing criterion (between water and vapor) combined with the Hessians of both pressure and velocity. The previously successful application of this method on steady-state cases like ship resistance [1] and on the unsteadiness present in foil ventilation [2] paved the way for the application to cavitation. To validate the quality of the results, simulations have been performed on the well-known Delft Twist 11 test case and compared with two campaigns of tunnel testing carried out by Bouziad [3] and Foeth [4], as well as computational results from literature. Excellent agreement is obtained with the dynamics observed in","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127702477","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 : 1900-01-01DOI: 10.23967/marine.2023.051
K. Marlantes, K. Maki, P. Bandyk
{"title":"Investigating Nonlinear Forces in Ship Dynamics using Machine Learning","authors":"K. Marlantes, K. Maki, P. Bandyk","doi":"10.23967/marine.2023.051","DOIUrl":"https://doi.org/10.23967/marine.2023.051","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114932097","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 : 1900-01-01DOI: 10.23967/marine.2023.116
P. Dragone, A. Serani, M. Diez
{"title":"Dynamic Mode Decomposition with Time-Delaying Embedding for Time-Series Forecasting of Ships Operating in Waves","authors":"P. Dragone, A. Serani, M. Diez","doi":"10.23967/marine.2023.116","DOIUrl":"https://doi.org/10.23967/marine.2023.116","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491716","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 : 1900-01-01DOI: 10.23967/marine.2023.001
J. Carmona, R. Atienza, J. Iribarren
{"title":"Development of a demonstrator for predicting the operation of unmanned vehicles on naval platforms","authors":"J. Carmona, R. Atienza, J. Iribarren","doi":"10.23967/marine.2023.001","DOIUrl":"https://doi.org/10.23967/marine.2023.001","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132709684","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 : 1900-01-01DOI: 10.23967/marine.2023.069
M. Münsch, S. Saha, A. Altmann, A. Reichel, A. Weirschem
{"title":"On the Numerical Simulation of Particle Flows within a Deep-Sea Mining Application","authors":"M. Münsch, S. Saha, A. Altmann, A. Reichel, A. Weirschem","doi":"10.23967/marine.2023.069","DOIUrl":"https://doi.org/10.23967/marine.2023.069","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132040064","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 : 1900-01-01DOI: 10.23967/marine.2023.026
J. Petiteau, S. Paboeuf, C. Brun, P. Pathak
{"title":"Methodology for the design review of composite parts of floating offshore platforms","authors":"J. Petiteau, S. Paboeuf, C. Brun, P. Pathak","doi":"10.23967/marine.2023.026","DOIUrl":"https://doi.org/10.23967/marine.2023.026","url":null,"abstract":"","PeriodicalId":198279,"journal":{"name":"10th Conference on Computational Methods in Marine Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123950773","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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