ADVANCES IN NUMERICAL STUDIES OF TURBULENT IMPINGING JET FLOW AND HEAT TRANSFER

Turbulent jet impingement is widely used inengineering applications and industrial processes as such surface heating, electronic cooling, paper drying and material cutting because of their high level of momentum and local heat transfer. Due to the complexity of the flow , the jet impingement is also used as an excellent test case for validation of turbulence models. Additionally, the aerodynamic interactions between turbulent lift jets and ground plane have great effects on the performance of V/STOL aircraft. There have been many publications related to theoretical analyses, experimentalmeasurements and numerical simulations of such flows. A selection of recent publications with regard to numerical simulations of the turbulent impinging jet flow and heat transfer are reviewed in this paper. The emphasis is on the assessment of the abilities of various turbulence models in predicting the impinging jet flow and heat transfer. The existing problems and the research prospects in this field are discussed.