Energy loss, velocity distribution, and temperature distribution for a baffled cylinder model

Brevoort, Maurice J
naca-tn-620
October 1937


A study has been made of the important principles involved in the operation of a baffle for an engine cylinder and shows that cooling can be improved by 20 percent by using a correctly designed baffle. Such a gain is as effective as a 65 percent increase in pressure drop across the standard baffle, which had a 1/4 inch clearance between baffle and fin tips.

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http://naca.central.cranfield.ac.uk/reports/1937/naca-tn-620.pdf