Cr. Berezin et Ln. Sankar, AN IMPROVED NAVIER-STOKES FULL-POTENTIAL COUPLED ANALYSIS FOR ROTORS, Mathematical and computer modelling, 19(3-4), 1994, pp. 125-133
An existing tightly coupled Navier-Stokes/full-potential rotor code ha
s been improved and extended for forward flight rotor cases. The solve
r attempts to predict flow fields with the fidelity of a standalone Na
vier-Stokes solver but with reduced computer time requirements. The me
thod consists of a Navier-Stokes inner region near the blade and wake
surrounded by a full-potential outer region. The two regions are coupl
ed through boundary conditions. The solver has been applied to a model
UH-60A forward flight case. The effects of control positions, blade e
lastic deformations, and the far wake were accounted for by using a lo
ose coupling with a comprehensive rotor code. Surface pressure compari
sons between the present code, a standalone Navier-Stokes solver, and
experimental data are presented.