Abstract
Based on the standard quasi-linear pressure–strain correlation model a nonlinear eddy viscosity turbulence closure is developed. In two-dimensional mean-flows it is uniquely determined by three model coefficients. The model coefficients are allowed to adapt to flow conditions described by the invariants of mean-flow deformation and Reynolds stress anisotropy. The adaption is done in a straightforward and inexpensive manner. In the rapid distortion limit the coefficients are based on recent numerical and theoretical predictions for initially anisotropic turbulence. The model performance is furthermore calibrated against DNS data of canonical flows of engineering and geophysical interest. Those are the boundary layer of channel flow, homogeneous shear flow and Ekman flow. The resulting turbulence model is demonstrated to be superior to those based on well-known pressure–strain correlation models. An interpolation procedure is suggested to cover the entire Reynolds stress anisotropy-invariant map.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
