Numerical computation on blade channel radiation in engine

The discrete ordinates method (DOM) in general body-fitted coordinates was employed to simulate radiation in three dimensional vane channel of engine, and incident radiant heat fluxes on engine wall and blades was computed and compared when total temperature of inlet gas was 1 673 K and 2 193 K respectively. The numerical simulation indicates that incident radiant heat fluxes increase from 188 percent to 212 percent when temperature of inlet gas increase 29.9 percent. The solution from DOM is found to be in good agreement with that from finite volume method in a Cartesian coordinate.