Simulation of High Speed Compressor Based on Body-Force Model

A three-dimensional body-force model with energy source item was developed to solve the problem of low accuracy with traditional body-force model applied to transonic compressor. The energy equation was considered when the body-force source item was extracted from single-passage RANS simulation results, in which the energy source item was extracted and added to CFX together with the force one. Comparing the simulation results with experiment data, the value and distribution of the source item was revised for cycle computing. The final results shows that body-force model simulates aerodynamic performance of NASA Rotor37 at design operating point successfully while it reduces about one point five magnitudes of mesh numbers in contrast to full-passage RANS model. The results by the model are in agreement with experiments and the average relative error is 0.62 percent. © 2019, Science Press. All right reserved.