Identification of Coherent Structures in Axial Flow in a Rectangular Channel Containing a Rod

摘要

Unsteady high-resolution RANS using a Reynolds stress model have showed good agreement with experimental results for flow in a channel containing a rod.The numerical study clearly reproduced the formation of coherent structures and demonstrated that they are largely responsible for transport across gap regions.It is assessed that this approach can be used in parametric studies of flow and heat transfer in nuclear reactor rod bundles.