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Armadillo
  • Member for 10 years, 11 months
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33 votes
8 answers
149k views

What is the difference between stress and pressure?

15 votes
11 answers
3k views

Is there still no known origin of the law of inertia?

10 votes
5 answers
1k views

What is meant when the phrase "in principle" is used to explain a concept in physics? [closed]

5 votes
2 answers
4k views

Liquid density as a function of pressure and temperature, how to model experimental data of $\rho(p,T)$?

5 votes
2 answers
4k views

Double slit experiment; evidence of wavefunction collapse

3 votes
1 answer
1k views

What is the difference between flow and expansion?

3 votes
2 answers
5k views

Gas viscosity at high pressure, high temperature

3 votes
0 answers
195 views

Onsager reciprocal relations and Darcy's permeability tensor for anisotropic porous media

3 votes
3 answers
163 views

When or why to use the $\equiv$ symbol in place of the $=$ symbol?

2 votes
0 answers
107 views

What does it mean for resistance, as it appears in Ohm's law, to be an integral, evaluated over the body as a whole?

2 votes
1 answer
2k views

Density as a derivative of the Helmholtz energy

2 votes
0 answers
752 views

Mechanics of Materials (pressure and temperature)

1 vote
1 answer
1k views

Help with ideal gas law manipulation

1 vote
1 answer
2k views

Non-Darcy Flow : Forchheimer plotting method

1 vote
2 answers
2k views

Limitations of Redlich-Kwong equation of state

1 vote
0 answers
35 views

Permeability anisotropy of porous media

1 vote
1 answer
719 views

How to implement Hubbert's potential to calculate permeability using Darcy's law?

1 vote
0 answers
63 views

"Directional" conductivity in linear flux-potential laws?

1 vote
1 answer
2k views

Can dynamic viscosity be measured directly and without knowing fluid density?

1 vote
1 answer
283 views

Darcy's law using Hubbert potential vs pseudo-pressure for a gas

1 vote
1 answer
479 views

Is the velocity quantity used to define Reynolds number a scalar or vector?

1 vote
1 answer
374 views

On the average gas pressure over a pipeline

1 vote
1 answer
450 views

Pressure near a submerged orifice?

1 vote
1 answer
61 views

On taking the gradient of a compressible fluid potential

1 vote
0 answers
43 views

How to characterize the accuracy of a tensor value determined experimentally?

1 vote
0 answers
42 views

Does theory impose a limitation on the size of the sample to be used for measuring permeability?

1 vote
0 answers
34 views

Not all anisotropic porous media can be associated with a symmetric permeability tensor $K_{ij}$?

1 vote
2 answers
6k views

What is meant by "surge" in fluid mechanics?

1 vote
0 answers
31 views

What are some examples of moving a fluid changing only its kinetic energy?

1 vote
1 answer
192 views

Question on Reynolds number using Newton's definition of inertial force and how to obtain the common expression for Reynolds number?