2015 journal article

NASA Trapezoidal-Wing Simulation Using Stress-omega, and One- and Two-Equation Turbulence Models

JOURNAL OF AIRCRAFT, 52(4), 1189–1200.

By: J. Rodio n, X. Xiao *, H. Hassan n & C. Rumsey*

co-author countries: United States of America πŸ‡ΊπŸ‡Έ
Source: Web Of Science
Added: August 6, 2018

The Wilcox 2006 stress- model (also referred to as WilcoxRSM-w2006) has been implemented in the NASA Langley Research Center code CFL3D, and used to study a variety of two-dimensional and three-dimensional configurations. It predicted a variety of basic cases reasonably well, including secondary flow in a supersonic rectangular duct. One- and two-equation turbulence models that employ the Boussinesq constitutive relation were unable to predict this secondary flow accurately because it is driven by normal turbulent-stress differences. For the NASA trapezoidal wing at high angles of attack, the WilcoxRSM-w2006 model predicted lower maximum lift than the experiment, similar to the results of a two-equation model.