Impingement Cooling Characteristics of a Cube in Cross Flow
AbstractAn 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.
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