The analysis of the flow in the cooling channels of liquid rocket engine thrust chambers is of paramount importance in their structural thermal design. The complete information can only be obtained by costly experiments or by complex numerical simulations, because of the three-dimensional shape of channels and of the coupling among flow evolution in hot-gas and coolant sides and wall heat transfer. Moreover, the coolant is often a supercritical fluid, which needs its appropriate equation of state. A simplified approach is developed in the present paper which, relying on empirical relationships, is able to study the thermal stratification in both the coolant flow and the cooling channel structures.
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|Titolo:||A simplified model for the analysis of thermal stratification in cooling channels|
|Data di pubblicazione:||2007|
|Appartiene alla tipologia:||04b Atto di convegno in volume|