- #1
nanunath
- 70
- 0
Hi guys,
I have two questions as follows, ofcourse they may seem too basic, I have read through certain texts (engineering) but I still haven't been able to actually physically understand, so asked here
1) Whats thermodynamic pressure w.r.t physical point of view? - for a gas from thermodynamics I know its the force per unit area that an imaginary small face would experience at a point in the gas
Is this valid for the thermodynamic pressure at a point in a fluid (not necessarily gas)?
2) Which pressure does a manometer / or any pressure sensor measure? I'm know that thermodynamic pressure = mechanical pressure for in compressible flow or stokian fluid, but that's not my question. I want to know which is actually the pressure that my manometer is measuring - thermodynamic or mechanical pressure?
I have two questions as follows, ofcourse they may seem too basic, I have read through certain texts (engineering) but I still haven't been able to actually physically understand, so asked here
1) Whats thermodynamic pressure w.r.t physical point of view? - for a gas from thermodynamics I know its the force per unit area that an imaginary small face would experience at a point in the gas
Is this valid for the thermodynamic pressure at a point in a fluid (not necessarily gas)?
2) Which pressure does a manometer / or any pressure sensor measure? I'm know that thermodynamic pressure = mechanical pressure for in compressible flow or stokian fluid, but that's not my question. I want to know which is actually the pressure that my manometer is measuring - thermodynamic or mechanical pressure?