RANS turbulent channel flow
RANS simulation of a turbulent flow through a channel
An incompressible fully developed turbulent flow is considered in a channel (statistically stationary and homogeneous in directions parallel to the wall). The numerical code compares different characteristic properties of a turbulent flow, e.g., mean velocity profiles <math-renderer class="js-inline-math" style="display: inline" data-static-url="https://github.githubassets.com/static" data-run-id="d980d488c0e3c8e8bad1cb858ffd1997">$U/u_\tau$</math-renderer>, turbulent kinetic energy <math-renderer class="js-inline-math" style="display: inline" data-static-url="https://github.githubassets.com/static" data-run-id="d980d488c0e3c8e8bad1cb858ffd1997">$k/u_\tau^2$</math-renderer>, dissipation <math-renderer class="js-inline-math" style="display: inline" data-static-url="https://github.githubassets.com/static" data-run-id="d980d488c0e3c8e8bad1cb858ffd1997">$\epsilon/(u_\tau^3/h)$</math-renderer>, turbulent viscosity profiles <math-renderer class="js-inline-math" style="display: inline" data-static-url="https://github.githubassets.com/static" data-run-id="d980d488c0e3c8e8bad1cb858ffd1997">$\nu_T/(u_\tau h)$</math-renderer>, for various turbulent Reynolds numbers Re <math-renderer class="js-inline-math" style="display: inline" data-static-url="https://github.githubassets.com/static" data-run-id="d980d488c0e3c8e8bad1cb858ffd1997">$_\tau$</math-renderer> = {180, 550, 950, 2000} using different turbulence models:
- Length mixing,
- TKE,
- k-epsilon.
Additionaly, I have included the report that I wrote (in spanish) along the numerical code.
Numerical models implemented:
Models | Transport eqs. |
---|---|
Length mixing | 0 |
TKE | 1 |
k-epsilon | 2 |
Database
Data extracted from direct numerical simulations of a fully developed plane turbulent channel flow.
URL: http://torroja.dmt.upm.es/channels/data/
DNS data |
---|
Re_tau = 180 |
Re_tau = 550 |
Re_tau = 950 |
Re_tau = 2000 |
引用
Alberto Cuadra Lara (2024). RANS turbulent channel flow (https://github.com/AlbertoCuadra/RANS_turbulent_channel_flow/releases/tag/v1.1.3), GitHub. 取得済み .
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settings
turbulent_models/0-mixing
turbulent_models/1-tke
turbulent_models/2-k-epsilon
turbulent_models/2-k-omega
turbulent_models/functions
バージョン | 公開済み | リリース ノート | |
---|---|---|---|
1.1.3 | See release notes for this release on GitHub: https://github.com/AlbertoCuadra/RANS_turbulent_channel_flow/releases/tag/v1.1.3 |
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1.1.2 |