Philippe spalart biography of william

Philippe SPALART, Senior Technical Fellow | Cited by | of The Boeing Company, Chicago | Read publications | Contact Philippe SPALART.!

Spalart et al.

Turbulence modeling in rotating and curved channels - Assessment of the Spalart-Shur correction term.

Philippe SPALART, Senior Technical Fellow | Cited by | of The Boeing Company, Chicago | Read publications | Contact Philippe SPALART.

On the application of incomplete FWH surfaces for aeroacoustic predictions.

The Large-Eddy Simulation (LES) system established over the last six years is reviewed in terms of its progress in accuracy and transition physics.

Philippe Spalart

DNS provides all the information on a flow, with limitations on geometry and Reynolds numbers. Datasets have been available since the 1980’s for homogeneous and free shear flows, as well as wall-bounded flows.

The Reynolds number Re_tau in channel flow has risen from 180 to 8,000. The impact of DNS on the most-used eddy-viscosity models, however, has been extremely small. The impact on Reynolds-stress models is also modest. There are substantial structural difficulties when trying to match RANS to DNS, including conflicts over whether the Reynolds stresses obey a law of the wall, and over whether the stresses are uniform in the log layer.

Squires works with Drs. Philippe Spalart at Boeing and James Forysthe of Cobalt Solutions on simulations that involve highly-accurate.

Another factor is that all models accept cancellations of errors between terms. In recent work, DNS fields have been used to define an effective eddy viscosity, to provide a target for simple models. Examples are given, which led to limited success.

Machine Learning may be a key to bridging DNS and RANS. The core problem is that d