The Simulation of Compressor Performance of Inlet Distortion Using Split Actuator Disk Model

Abstract

In order to simulate the influence of intake distortion on the performance and stability of multi-stage axial compressor accurately, an improved split actuator disk (SAD) model is developed based on actuator disk models. By comparing the simulation with the original model, it is verified that the split actuator disk model is more accurate. Further, the influence of the intake distortion condition on performance of multi-stage axial compressor is simulated using split actuator disk model. This paper shows that the split actuator disk can eliminate the error caused by the assumption of the original model effectively, and the simulation results are closer to the full three-dimensional simulation. Using the split actuator disk model can analyze the performance of the multi-stage compressor under the condition of total pressure distortion, and provide a feasible and accurate method for the joint simulation of the inlet-compressor system.