Multi-point momentum interpolation correction on collocated meshes

Since the momentum interpolation method was proposed by Rhie and Chow in 1983, it has been widely used in studies of Computational Fluids Dynamics (CFD). The conventional momentum interpolation methods were designed across the edge between two neighboring cells. In this study, an alternative momentu...

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Bibliographic Details
Published inJournal of computational physics Vol. 449; p. 110783
Main Authors Zhang, Yaoxin, Jia, Yafei
Format Journal Article
LanguageEnglish
Published Cambridge Elsevier Inc 15.01.2022
Elsevier Science Ltd
Subjects
Computational physics
Convergence
Interpolation
Interpolation correction
Interpolation subject
Momentum
Momentum interpolation
Interpolation correction
Momentum interpolation
Interpolation subject
Convergence
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Summary:Since the momentum interpolation method was proposed by Rhie and Chow in 1983, it has been widely used in studies of Computational Fluids Dynamics (CFD). The conventional momentum interpolation methods were designed across the edge between two neighboring cells. In this study, an alternative momentum interpolation method, called multi-point momentum interpolation correction (IC) method, is proposed. The proposed IC method is distinguished from the conventional cross-edge momentum interpolation methods by correcting and improving the edge velocity with the interpolated values of its surrounding edges. Examples including analytic, experimental and field cases demonstrated that the proposed IC method is generally capable of improving the convergence process and numerical accuracy.
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ISSN:0021-9991
1090-2716
DOI:10.1016/j.jcp.2021.110783