Abstract:
Based on the coupling of two-fluid model and wall dynamics model,and the comprehensive comparison and selection of specific correlation combination,along with related verifications,a transient simulation code on boiling flow and heat transfer analysis for the rectangular narrow gap channel is developed.Through numerical experiment method,effects of such factors as location,direction and movements of the channel on the boiling flow and heat transfer within the channels between heated wall are studied in this paper.The prediction results about effects of the above mentioned factors on boiling heat transfer coefficient,pressure drop,element temperature and some transient flow and heat transfer behaviors are expected to provide beneficial guidance on the test,design and application of related core channels.
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