Impingement cooling characteristics of a cube in cross flow

Abstract EN

An experimental and numerical investigation is carried out for the heat transfer from a cube faces subjected to impinging jet which centrally strikes the top face of the cube.

The cube is subjected also to a comparatively low velocity cross flow through the duct occupying the cube.

Different factors affecting the cooling characteristics of the cube are studied as orifice size, jet velocity and orifice to cube top distance.

The results show that cross flow increases heat rates from the cube for small size orifices and low impinging jet velocities.

Orifice sizes equal or bigger than cube size will isolate the cube from cross flow effect especially at high impinging jet velocities.