A Simple Linear Model for the Performance Evaluation of Cascade Fin Arrays

Cascade fin arrays are used widely to enhance heat transfer in electronic packaging. To analyze the performance of a cascade fin array, usually a complex 3D CFD heat transfer model is conducted in industry. It is time consuming and high computing resource is required. A simple linear model is proposed in this paper to analyze the fin array in a quick and accurate way. Three cases were analyzed and the results of this model were compared with that obtained by CFD. It was found the error in temperature prediction is within 1%.