Simulation of the flow in a ribbed rotating duct with a hybrid k-ω RANS/LES model

摘要

Unsteady three-dimensional flow in a ribbed duct subjected to system rotation is simulated with a hybrid k-ω RANS/LES model. The Reynolds number is 15,000 and the rotation number is 0.3, both based on hydraulic diameter and bulk velocity. Simulation results in the mid-span section are compared with experimental data. The comparison is complemented by analysis of the flow features in cross-sections. It is demonstrated that the hybrid k-ω RANS/LES model produces an accurate simulation of the rotating ribbed duct flow.