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absolute and total pressure

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Old   May 21, 2008, 05:31
Default absolute and total pressure
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novice
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What is the difference in Fluent between absolute pressure and total pressure???
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Old   May 21, 2008, 07:05
Default Re: absolute and total pressure
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mAx
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absolute pressure = static_pressure + operating_pressure total_pressure = static_pressure + dynamic_pressure dynamic_pressure = 0.5*rho*U**2
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Old   May 26, 2008, 18:48
Default Re: absolute and total pressure
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red lemon
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absolute/gauge is just a reporting convention (usually relative to atmospheric pressure)

static/total is a key physical variation such that at rest static pressure = total pressure but as fluid momentum increases the two separate and the difference is the dynamic pressure.
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