Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method

In this paper, two different 3D hydrofoils with profiles NACA0012 are simulated in the potential flow. Boundary element method (BEM) and nonuniform rational B-spline (NURBS) are coupled to reduce error and increase accuracy. The computer code is developed in different submergence depths (d), flow ve...

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Autores principales:	Moloud ArianMaram, Mahmoud Ghiasi, Hassan Ghassemi, Hamid Reza Ghafari
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/dc0db04b62b34ec3be402c734a3fd351
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spelling	oai:doaj.org-article:dc0db04b62b34ec3be402c734a3fd3512021-11-08T02:35:30ZHydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method1563-514710.1155/2021/7252949https://doaj.org/article/dc0db04b62b34ec3be402c734a3fd3512021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/7252949https://doaj.org/toc/1563-5147In this paper, two different 3D hydrofoils with profiles NACA0012 are simulated in the potential flow. Boundary element method (BEM) and nonuniform rational B-spline (NURBS) are coupled to reduce error and increase accuracy. The computer code is developed in different submergence depths (d), flow velocities (U), and various angles of attack (AoA), and the pressure is obtained by NURBS formulation. The pressure on a 3D hydrofoil with NACA412 profile iscompared with other existing methods. The validity of result is revealed. The accuracy of the results is acceptable. The competition of the two models’ results indicates that the increasing chord length leads to increase in Cpmin, and the decrease in depth and angle of attack leads to the growing value of Cpmin. Moreover, when the flow velocity is changed, the changes of potential and pressure coefficient distribution do not follow the specific trend. NURBS is a basic equation in different CAD packages because it is able to mesh surfaces. This study demonstrates that this algorithm does mesh surface of high quality, so it can be developed to generate mesh on the submerged three-dimensional bodies .Moloud ArianMaramMahmoud GhiasiHassan GhassemiHamid Reza GhafariHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Moloud ArianMaram Mahmoud Ghiasi Hassan Ghassemi Hamid Reza Ghafari Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
description	In this paper, two different 3D hydrofoils with profiles NACA0012 are simulated in the potential flow. Boundary element method (BEM) and nonuniform rational B-spline (NURBS) are coupled to reduce error and increase accuracy. The computer code is developed in different submergence depths (d), flow velocities (U), and various angles of attack (AoA), and the pressure is obtained by NURBS formulation. The pressure on a 3D hydrofoil with NACA412 profile iscompared with other existing methods. The validity of result is revealed. The accuracy of the results is acceptable. The competition of the two models’ results indicates that the increasing chord length leads to increase in Cpmin, and the decrease in depth and angle of attack leads to the growing value of Cpmin. Moreover, when the flow velocity is changed, the changes of potential and pressure coefficient distribution do not follow the specific trend. NURBS is a basic equation in different CAD packages because it is able to mesh surfaces. This study demonstrates that this algorithm does mesh surface of high quality, so it can be developed to generate mesh on the submerged three-dimensional bodies .
format	article
author	Moloud ArianMaram Mahmoud Ghiasi Hassan Ghassemi Hamid Reza Ghafari
author_facet	Moloud ArianMaram Mahmoud Ghiasi Hassan Ghassemi Hamid Reza Ghafari
author_sort	Moloud ArianMaram
title	Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
title_short	Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
title_full	Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
title_fullStr	Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
title_full_unstemmed	Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method
title_sort	hydrodynamic analysis of 3d hydrofoil using nonuniform rational b-spline and boundary element method
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/dc0db04b62b34ec3be402c734a3fd351
work_keys_str_mv	AT moloudarianmaram hydrodynamicanalysisof3dhydrofoilusingnonuniformrationalbsplineandboundaryelementmethod AT mahmoudghiasi hydrodynamicanalysisof3dhydrofoilusingnonuniformrationalbsplineandboundaryelementmethod AT hassanghassemi hydrodynamicanalysisof3dhydrofoilusingnonuniformrationalbsplineandboundaryelementmethod AT hamidrezaghafari hydrodynamicanalysisof3dhydrofoilusingnonuniformrationalbsplineandboundaryelementmethod
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Hydrodynamic Analysis of 3D Hydrofoil Using Nonuniform Rational B-Spline and Boundary Element Method

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