Heat Transfer in Pulsating Laminar Flow in a Pipe: Evaluation of the Reduction in the Heat Exchange Area of Oil Cooler

Abstract

In this study, the heat transfer in a pipe was investigated by a numerical method with the pulsating flow of oil at Reynolds numbers 280, 350, 420. The diameter D of the pipe was 0.014 m. The pipe length was 100D. The flow pulsations were not harmonical. A numerical experiment was carried out using AnsysFluent. Based on the data obtained from the numerical experiment, an estimate of the reduction in the heat exchange area of the oil cooler was calculated. The reduction in the heat exchange area of the oil cooler ranged from 2.57% to 8.63%, depending on the pulsation mode.