Three-dimensional unstructured grid Euler method applied to turbine bladesFlow through a turbine annular cascade is calculated using a three-dimensional Euler method based on unstructured tetrahedral meshes. The equations are integrated in time using an explicit Runge-Kutta time-stepping scheme. The inviscid flux terms are discretized using a cell-centered finite-volume formulation with upwind flux-difference splitting. The tetrahedral meshes around the turbine blade are generated using an advancing-front technique with forced geometric periodicity between the blades. Good agreement is obtained between the present calculation and the experiment for both surface pressure distribution and flow behavior in the passage between the blades, demonstrating the capability of the present methodology for turbomachinery flow applications.
Document ID
19930040236
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kwon, Oh J. (Sverdrup Technology, Inc. Brook Park, OH, United States)
Hah, Chunill (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 93-0196
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit