dorsal/arxiv
View SchemaNumerical Implementation of Generalized Robin-type Wall Functions and Their Application to Impinging Flows
| Authors | S. V. Utyuzhnikov |
|---|---|
| Categories | |
| ArXiv ID | physics/0512117 |
| URL | https://arxiv.org/abs/physics/0512117 |
Abstract
The paper is devoted to the generalized wall functions of Robin-type and their application to near-wall turbulent flows. The wall functions are based on the transfer of a boundary condition from a wall to some intermediate boundary near the wall. The boundary conditions on the intermediate boundary are of Robin-type and represented in a differential form. The wall functions are formulated in an analytical easy-to-implement form, can take into account the source terms of the momentum equation, and do not include free parameters. The log-profile assumption is not used in this approach. A robust numerical algorithm is proposed for implementation of Robin-type wall functions to both finite-difference and finite-volume numerical schemes. The algorithm of implementation of the Robin-type wall functions to existing finite-volume codes is provided. The axisymmetric impinging jet problem is numerically investigated for different regimes on the base of the wall-functions implemented to the high-Reynolds-number k-epsilon model.
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"abstract": "The paper is devoted to the generalized wall functions of Robin-type and\ntheir application to near-wall turbulent flows. The wall functions are based on\nthe transfer of a boundary condition from a wall to some intermediate boundary\nnear the wall. The boundary conditions on the intermediate boundary are of\nRobin-type and represented in a differential form. The wall functions are\nformulated in an analytical easy-to-implement form, can take into account the\nsource terms of the momentum equation, and do not include free parameters. The\nlog-profile assumption is not used in this approach. A robust numerical\nalgorithm is proposed for implementation of Robin-type wall functions to both\nfinite-difference and finite-volume numerical schemes. The algorithm of\nimplementation of the Robin-type wall functions to existing finite-volume codes\nis provided. The axisymmetric impinging jet problem is numerically investigated\nfor different regimes on the base of the wall-functions implemented to the\nhigh-Reynolds-number k-epsilon model.",
"arxiv_id": "physics/0512117",
"authors": [
"S. V. Utyuzhnikov"
],
"categories": [
"physics.comp-ph"
],
"title": "Numerical Implementation of Generalized Robin-type Wall Functions and Their Application to Impinging Flows",
"url": "https://arxiv.org/abs/physics/0512117"
},
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