Turbulence modeling in aerodynamic shear flows - Status and problemsThis paper briefly summarizes the status and problems of turbulence modeling for aerodynamical applications. For complex flows the 'approach of choice' is (increasingly) full second-order (Reynolds stress equation) closure. These closures have not yet developed to anywhere near their full potential, significant further research is required especially regarding length-scale equations, representation of pressure-strain correlations, and wall region treatments. Recent developments in computer capability, algorithms, numerical simulations, theory and quantitative flow visualization should assist in and hasten this research. Several problem areas such as shock interaction and discrete dynamic instabilities of turbulent flows may require mega-to-large eddy simulation or theoretical adjuncts.
Document ID
19910034566
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bushnell, D. M. (NASA Langley Research Center Hampton, VA, United States)