Experimental and Numerical Investigation of a Heated Impinging Jet for a Small Nozzle-to-Plate Distance and High Reynolds Number

Abstract

This paper presents a comprehensive study of an impinging jet configuration [1], which has been selected for its high Reynolds number Re D = 60,000, small nozzle-to-plate distance H/D = 3 and temperature difference between the heated jet and the ambient. First, the experiments are described and analysed, then numerical simulations (DNS, LES, ZDES and RANS) are assessed to evaluate the resolution level required to capture the salient features of this configuration.