[AR] Re: Papers/Resources on Film Cooling
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Sat, 3 Oct 2020 18:29:33 -0400 (EDT)
On Sat, 3 Oct 2020, Wyatt Rehder wrote:
Does anyone have any reasonable papers/resources on just standard film
cooling? I have been having a hard time finding any resources on the
subject beyond stuff like the basic blurb in Design of LPREs.
NASA SP-8124, "Liquid rocket engine self-cooled combustion chambers",
talks about it. Ditto SP-8081, "Liquid propellant gas generators" -- gas
generators for big engines are often closer in size to amateur-scale
engines.
I don't know of a real design guide on it, perhaps because it's usually
been treated as a supplement to regen or ablative cooling.
The Viking engine used in the first stages of Arianes 1 through 4 was
film-cooled, but I don't think I've ever seen a detailed technical
description. It was an N2O4/UDMH engine, and they tend to run a bit
cooler than LOX-based designs, which probably helped. There are probably
some papers on it in old conference proceedings and the like, but they
would almost certainly be in French...
Henry
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