Effect of component layout and geometry on the flow distribution in electronics circuit packs

Abstract

An experiment conducted in a water tunnel using aluminium blocks to simulate various electronic components is discussed. The experiments were conducted for laminar and onset of transition Reynolds numbers. Diluted ink was used as the flow visualization vehicle. Flow over a single component, multiple components, and fully loaded circuit packs was studied. The flows were found to be highly three-dimensional, and it is concluded that the the location and orientation of components with large aspect ratio will significantly affect circuit pack flow distribution.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>