Average heat transfer in a turbulent flow on a plate with a system of double-cavity diffuser-type dimples is studied experimentally. The regime of turbulent flow almost reproduces the airflow in a cooling system of a turbine blade. Physical and numerical simulation of flow in a double-cavity diffuser-type dimple is performed. Two self-organizing vortices emerging in the dimple were documented. They provide continuous mass transfer between the dimple and the flow. Numerical simulation results agree well with the physical experiment.
Physical and Numerical Simulation of Heat Transfer and Flow in Double-Cavity Diffuser-Type Dimples
Russ. Aeronaut.
Russian Aeronautics ; 64 , 1 ; 97-100
01.01.2021
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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