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-   -   is the contours of absolute pressure will be negative...? (https://www.cfd-online.com/Forums/fluent/82829-contours-absolute-pressure-will-negative.html)

nareshnkk December 7, 2010 06:23
is the contours of absolute pressure will be negative...?
 
hi im doing analysis for propeller, i got the negative pressure as:
minimum is 0.1mpa and maximum is 0.35mpa

teguhtf December 8, 2010 02:06
Quote:
Originally Posted by nareshnkk (Post 286349)
hi im doing analysis for propeller, i got the negative pressure as:
minimum is 0.1mpa and maximum is 0.35mpa
Hy there,
I think absolute pressure is positive. pressure can be negative if it is gage pressure. For analyzing the pressure, you can try Cp (coefficient of pressure)..
hope it helps
teguhtf

nareshnkk December 8, 2010 03:09
thanq for giving reply

-mAx- December 9, 2010 01:13
absolute negative pressure may show cavitation genereration (although negative absolute pressure is physically impossible)


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