NDLI: Verification and validation of the k-kl turbulence model in fun3d and cfl3d codes

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Verification and validation of the k-kl turbulence model in fun3d and cfl3d codes

Content Provider	NASA Technical Reports Server (NTRS)
Author	Rumsey, Christopher L. Abdol-Hamid, Khaled S. Carlson, Jan-Renee
Copyright Year	2015
Description	The implementation of the k-kL turbulence model using multiple computational uid dy- namics (CFD) codes is reported herein. The k-kL model is a two-equation turbulence model based on Abdol-Hamid's closure and Menter's modi cation to Rotta's two-equation model. Rotta shows that a reliable transport equation can be formed from the turbulent length scale L, and the turbulent kinetic energy k. Rotta's equation is well suited for term-by-term mod- eling and displays useful features compared to other two-equation models. An important di erence is that this formulation leads to the inclusion of higher-order velocity derivatives in the source terms of the scale equations. This can enhance the ability of the Reynolds- averaged Navier-Stokes (RANS) solvers to simulate unsteady ows. The present report documents the formulation of the model as implemented in the CFD codes Fun3D and CFL3D. Methodology, veri cation and validation examples are shown. Attached and sepa- rated ow cases are documented and compared with experimental data. The results show generally very good comparisons with canonical and experimental data, as well as matching results code-to-code. The results from this formulation are similar or better than results using the SST turbulence model.
File Size	1177207
Page Count	31
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20160000768
Archival Resource Key	ark:/13960/t4rj9fw4m
Language	English
Publisher Date	2015-11-01
Access Restriction	Open
Subject Keyword	Aerodynamics Navier-stokes Equation Reynolds Stress Computational Fluid Dynamics Turbulence Models Reynolds Averaging Kinetic Energy Separated Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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