Transonic Turbulent Flow Computations on Unstructured Triangular Grids

Th e numerical simulation of 2d steady transonic turbulent flow over aerofoil sections is considered on unstructured triatutular grids. the mass -averaged navier-stokes equations are employed, together with the k - w two-equation turbulence model. the jameson- sclimidi- turkel algorithm is used and compared, in terms of accuracy and computational efficiency. with a muscl procedure, based upon r oe 's fi 1l.7:-dijjeren ce splitting scheme. both high and low rey nolds number turbulence models are utilized to represent the sub-layer region. simulations involving naca 0012 and ra e2822 aerofoil are presentedand th e results obtain ed are compared with available cxperiuieniol data.