일차원 파이프와 다차원 구조체 연계 시스템에 대한 난류모델 개발

In this study, a turbulence model was defined at the interface between one-dimensional(1D) pipes and multidimensional(MD) structures. In the existing GAMMA+ code, turbulent flow at the junction between 1D and MD regions is calculated by directly applying the turbulent kinetic energy and dissipation...

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Bibliographic Details
Published in한국전산유체공학회지, 30(1) pp. 51 - 58
Main Authors 허재석, 윤승현, 탁남일
Format Journal Article
LanguageKorean
Published 한국전산유체공학회 01.03.2025
Subjects
기계공학
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ISSN1598-6071
1598-6071

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Summary:In this study, a turbulence model was defined at the interface between one-dimensional(1D) pipes and multidimensional(MD) structures. In the existing GAMMA+ code, turbulent flow at the junction between 1D and MD regions is calculated by directly applying the turbulent kinetic energy and dissipation rate from the edge cells of the MD structure, which can result in non-physical turbulence predictions. To address this issue, a turbulence model was developed for the 1D-MD interface, based on the turbulent kinetic energy and dissipation rate approach implemented in ANSYS FLUENT. Validation calculations were performed on an integrated system of a 1D pipe and a 3D component. The results indicate that predictions obtained with the proposed turbulence model are more consistent with the target solutions, suggesting improved physical accuracy over the existing turbulence model. KCI Citation Count: 0
ISSN:1598-6071
1598-6071