A Numerical Viscous-Inviscid Interaction Algorithm for Prediction of Near-Field VSTOL Jet-Induced Flowfields

摘要

A turbulent-inviscid numberical interaction algorithm is derived and evaluated for detailed determination of the near-field flow of a jet injected perpendicular to a crosswind. The two distinct solution domains are pressure coupled through a Poisson equation solution, and entrainment-induced mass flux is an iteration variable. Finite element procedures are employed for solution of the resulting non-linear initial-boundary value equations. Key results are discussed documenting viability for analysis of a round-jet at a velocity ratio equal to eight. (Author)