Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison

Details Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison

2011-06-17

arxiv.org/abs/1106.3585v1

Physics

Computational Physics

28 pages, 6 figures

Scientific paper

This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent flows: the dynamic subgrid-scale model and the variational multiscale model. These models, which are considered state-of-the-art in large eddy simulation, together with the mixing length and the Smagorinsky closure models, are tested in the numerical simulation of a 3D turbulent flow around a circular cylinder at Re = 1,000. Two criteria are used in judging the performance of the proper orthogonal decomposition reduced-order models: the kinetic energy spectrum and the time evolution of the POD coefficients. All the numerical results are benchmarked against a direct numerical simulation. Based on these numerical results, we conclude that the dynamic subgrid-scale and the variational multiscale models perform best.

Affiliated with

Also associated with

No associations

Rating

Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-465261