🍪 CFD cookie 2 - Visiting all RANS models in OpenFOAM - Lam-Bremhorst K-Epsilon - Part 18

Описание: 👉 Turbulence models in OpenFOAM | Theory and numerical pointers 🙃
RANS simulation using the LRN Lam-Bremhorst K-Epsilon Turbulence model 🥸
Zero Pressure Gradient Flat Plate – Re = 10 000 000 👌


00:00 Introduction
03:00 Some theory about the LRN Lam-Bremhorst K-Epsilon Turbulence model
09:40 Let's visit the case setup | The LRN case (wall resolving)
12:40 Distance normal to the wall computation | wallDist in OpenFOAM
18:10 Some extra comments
20:00 Let's run the case | The LRN case (wall resolving)
22:38 Let's take a look at the solution of the wall resolving case | LRE case
27:30 Let's take a look at the wall modeling case | HRE case
29:05 Final remarks


This CFD cookie 🍪 is based on OpenFOAM 12, but the general guidelines and standard practices should work with any OpenFOAM version.

🤔 We also address the following question (CFD cookie 1):
Without reference results (experimental, analytical, etc.), how do I know that my turbulent Multiphysics simulations are correct?

You can find CFD cookie 1 at the following link: 👈
   • 🍪 CFD cookie - Basic turbulence modeling w...  


🤪 This cookie has been approved by the 🍪 cookie monster 👻.


Training material repository
https://drive.google.com/drive/folder...

Useful links:
https://turbmodels.larc.nasa.gov/
https://www.wolfdynamics.com/tools.ht...

Useful references:
B. E. Launder, D. B. Spalding. The Numerical Computation of Turbulent Flows. Computer Methods in Applied Mechanics and Engineering. 1974.
W. Jones, B. Launder. The prediction of laminarization with a two-equation model of turbulence. Int. J. Heat Mass Transfer, vol. 15, pp. 301–314, 1972.
W. Jones, B. Launder. The calculation of low-Reynolds number phenomena with a two-equation model of turbulence. Int. J. Heat Mass Transfer, vol. 16, pp. 1119–1130, 1973.
B. E. Launder, B. Sharma. Application of the energy dissipation model of turbulence to the calculation of flow near a spinning disc. Letters in Heat and Mass Transfer, Vol. 1(2), pp. 131-138. 1974.
C. Lam, K. Bremhorst. Modified Form of k-epsilon Model for Predicting Wall Turbulence. ASME, Journal of Fluids Engineering, Vol. 103, pp. 456-460, 1981.
C. Speziale, R. Abid, E. Anderson. A Critical Evaluation of Two-Equation Models for Near Wall Turbulence. ICASE Report 90-46, 1990.
M. Gibson, A. Dafa Alia. Two-Equation Model for Turbulent Wall Flow. AIAA Jounral. Volume 33, Number August 1995.
D. Apsley. https://personalpages.manchester.ac.u.... Turbulence modelling in the STREAM code, 2002.



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