Numerical simulation of inviscid compressible flow through three-dimensional cascade
Abstract
The steady inviscid compressible flow through a three-dimensional cascade is computed by Denton's original Time-Dependent Finite Volume Method. The present paper is concerned with the numerical results obtained during the course of development, adopting the RD-blade(2) for a test case. Two types of evaluation of flux vector through up and down stream surface of the integral domain are compared. In the steady state, the computed Mach number shows good agreement with the experimental isentropic one, except near both leading and trailing edges on the suction surface, although computed isentropic Mach numbers differ somewhat from those obtained in experiments on the fore part of the compression surface. This is caused by computed total pressure variation resulting from low static pressure on the compression surface. In the case of the two-dimensional computations based on McDonald's Finite Area Method, such difference resulted from somewhat inaccurate density. In the three-dimensional case, it is expected that this approach is also applicable to overcome present difficulties.
- Publication:
-
In its Proc. of the NAL Symp. on Aircraft Computational Aerodyn. p 63-70 (SEE N85-26611 16-01
- Pub Date:
- 1983
- Bibcode:
- 1983acae.proc...63F
- Keywords:
-
- Cascade Flow;
- Compressible Flow;
- Computerized Simulation;
- Inviscid Flow;
- Numerical Analysis;
- Computer Programs;
- Mach Number;
- Pressure Distribution;
- Fluid Mechanics and Heat Transfer