Direct simulations of turbulent flow using finite-difference schemesA high-order accurate finite-difference approach is presented for calculating incompressible turbulent flow. The methods used include a kinetic energy conserving central difference scheme and an upwind difference scheme. The methods are evaluated in test cases for the evolution of small-amplitude disturbances and fully developed turbulent channel flow. It is suggested that the finite-difference approach can be applied to complex geometries more easilty than highly accurate spectral methods. It is concluded that the upwind scheme is a good candidate for direct simulations of turbulent flows over complex geometries.
Document ID
19890037941
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rai, Man Mohan (NASA Ames Research Center Moffett Field, CA, United States)
Moin, Parviz (NASA Ames Research Center Moffett Field; Stanford University, CA, United States)