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Thermal Modeling of a Microchannel Heat Sink

Application ID: 470

Thermal management has become a critical aspect of today’s electronic systems, which often include many high-performance circuits that dissipate large amounts of heat. Many of these components require efficient cooling to prevent overheating. Some of these components, such as processors, require a heat sink with cooling fins that are exposed to forced air from a fan. This discussion develops the model of an aluminum microchannel heat sink whose manifolds work as flow dividers to improve its cooling performance.

This example models the temperature distribution in a microchannel heat sink mounted on an active electronic component. The model includes both nonisothermal fluid flow and an energy balance to describe the conduction and convection.

This model is included as an example in the following products:

Heat Transfer Module

The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Descrição dos Produtos and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.