Computations of the three-dimensional flow and heat transfer within a coolant passage of a radial turbine bladeA numerical code is developed for computing three-dimensional, turbulent, compressible flow within coolant passages of turbine blades. The code is based on a formulation of the compressible Navier-Stokes equations in a rotating frame of reference in which the velocity dependent variable is specified with respect to the rotating frame instead of the inertial frame. The algorithm employed to obtain solutions to the governing equation is a finite-volume LU algorithm that allows convection, source, as well as diffusion terms to be treated implicitly. In this study, all convection terms are upwind differenced by using flux-vector splitting, and all diffusion terms are centrally differenced. This paper describes the formulation and algorithm employed in the code. Some computed solutions for the flow within a coolant passage of a radial turbine are also presented.
Document ID
19910061174
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shih, T. I.-P. (Carnegie Mellon University Pittsburgh, PA, United States)
Roelke, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Steinthorsson, E. (Carnegie-Mellon Univ. Pittsburgh, PA, United States)