Quote:
Originally posted by unregistered
I would suspect a rocket motor is a bit of a strech as there is no coolant expansion
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and
Quote:
Originally posted by unregistered
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in the 462-U the higher flow contributes directly to "better cooling" (a lower thermal impedance) via the improved convection rate
- hence also its relatively poor low flow rate performance
to return to your question:
don't think that spreading resistance accounts for the principal differences between these two
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Yes, but is it any bigger stretch than trying to use a conventional Reynolds No. related cooling effect.
Some "Spreading Resistance" play with Zero TIM Resistance using Waterloo and Kryotherm :-
c/w versus Reynolds No for a 80x80mm plate with 10x10mm heat source
from Convection coeff v Reynolds No (Kryotherrm):-
and using the Waterloo Calculator:-
Using 6mm square water channel(Kryotherm doesn.t do round) get:-
or:-
