Experimental Measurement and Computational Investigation on the Effect of Inlet Winglet Turbulators on the Heat Exchange Behaviour of Radiator Tubes

In this present work, a heat exchanger test set up is configured as a closed circle framework comprising of a storage tank (۱۴ litres), a pump, a detour line, heat exchange test area, a water cooler and a flow meter. Numerical investigations is carried out using computational fluid dynamics (CFD) on a device was comprising a basic channel with rectangular cross area utilizing water as the working liquid. The influence of geometry and flow parameters on the pressure drop across the radiator tube test section is investigated. Inlet winglets were utilized as a part of the present numerical study. The goal of the present numerical study is to understand the impact of these inlet winglets set inside the car radiator tubes, on the general heat exchange performance of the radiator. The calculations were carried out on a finite volume based code ANSYS fluent۱۵.۰, with one, two and three winglets set toward one side mass of the tube, at three different Reynolds numbers and with three winglet configurations set on every one of the end of the tube, at five distinctive Reynolds numbers. It is observed for the experimental results and CFD values heat the optimum number ribbed winglets for the pressure configurations is two and three gives a temperature rise of ۱۰c and its pressure drop of ۲۰.۱۰ Pa.

Keywords:

Winglets , Heat transfer coefficient , Radiator tube , CFD