Simulation of swirling turbulent flows of coaxial jets in a combustor

A numerical simulation of swirling turbulent flows of coaxial jets in a com bustor is presented in this paper. The new algebraic Reynolds stress model (ASM) is employed for the closure of the time-averaged governing equations for swirling turbulent flows. Two cases of the swirling flow, i.e., a coswi rl jet flow and a counterswirl jet flow are simulated. The calculated resul ts of the axial and tangential velocities, static pressure, and turbulent f luctuating velocity are compared with the measured data for both cases. The results illustrate that the predictions by the new ASM are closer to the m easurements than those obtained by the k-epsilon model.