Numerical investigation of heat transfer enhancement in a microchannel with conical-shaped reentrant cavity
Document Type
Article
Publication Date
11-1-2022
Abstract
The current study is focused on improving the thermal performance of the microchannel heat sink (MCHS) using the passive reentrant cavity approach. The MCHS physical model's single channel was used in a three-dimensional numerical simulation. The basic geometrical layout of the MCHS's computational domain was drawn from previously published research and verified using numerical and analytical correlations that were already in existence. The innovative conical-shaped microchannel heat sink's (CMCHS) properties for heat transmission and fluid flow were examined numerically under steady-state conditions with laminar flow and a constant heat flux. At various flow velocities and configurations, the impacts of the geometrical parameters on pressure drops and heat transfer were examined. The outcome demonstrates a tremendously positive thermal performance with a significantly greater pressure drop than the traditional straight channel. In the microchannels with the conical-shaped reentrant cavities and minimal pressure loss, convection heat transfer is significantly improved. The findings of the present investigation demonstrate that the conical-shaped MCHS is practical and has a good chance of being used in real-world settings.
Keywords
heat flux, convection, microchannel, laminar
Divisions
mechanical
Funders
Large Groups Project of the Deanship of Scientific Research at King Khalid University [RGP],Large Groups Project of the Deanship of Scientific Research at King Khalid University [2/63/43]
Publication Title
Mathematics
Volume
10
Issue
22
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND