Fluid Flow and Heat Transfer Analysis of Circular Multi Jets Impact on Concave Surface

Abstract: The computational investigation is carried out to study the fluid flow and heat transfer analysis of a circular Multi jets impingement on concave surface. The computational technique simulates the impingement of jet in a gas turbine guide vane. In the present study the effect of different parameters like Jet Reynolds number (Red=800, 2000, 4000), inter-jet distance to jet diameter ratio(c/d) and target plate distance to jet diameter ratio (H/d=1,2,3) on flow field and heat transfer are analysed. The analysis is carried out by using ANSYS Fluent 14.5. The maximum pressure and maximum Nu numbers are 85.27 Pa and 54.35 and obtained at H/d=1, c/d=3 and Red=4000.

Keywords: Jet impingement, Turbine Guide vane Reynolds number, Nusselt number, Fluent