Further Development of a One-Dimensional Unsteady Euler Code for Wave Rotor Applications

摘要

The wave rotor consists of simple tube-like passages along and around the periphery of a drum which rotates between end walls containing inlet and outlet (partial admission) gas ports. Compression and expansion processes occur in a cyclically periodic unsteady process within the rotor such that a high pressure driver gas is used to compress a low pressure driven gas. The compressed driven gas is led from the outlet port to the combustor and brought back into the rotor as the driver. The EULER1 Fortran program for computing one-dimensional unsteady flow based on the QAZID method of Verhoff was extended to provide tracking and correcting of discontinuities, flow to right or left and open and closed end boundary conditions. The program was run on four shock tube test cases to verify accuracy and range of capability of the revised E1DV2 code. Further extensions and test verifications are recommended so that the code is suitable for wave rotor applications. Keywords: Wave Rotor; Euler Code; Computational Fluid Dynamics.