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Paul
  • Member for 9 years, 4 months
  • Last seen more than a week ago
  • 149.6 million km from the sun
21 votes
8 answers
3k views

How do engineers really use numerical simulation?

16 votes
3 answers
8k views

What is the most efficient means of warming a building with a high ceiling?

15 votes
3 answers
58k views

How to determine the characteristic length in reynolds number calculations in general?

14 votes
1 answer
15k views

Why is Mach 0.3 the threshold separating compressible and incompressible flow?

13 votes
3 answers
10k views

How different are dc motor designs from dc generator designs?

10 votes
2 answers
4k views

Do structural engineers carry insurance for catastrophic errors?

9 votes
1 answer
320 views

Sensors / processing algorithms to emulate a human's sense of smell

8 votes
1 answer
381 views

How do I select an appropriate turbulence model?

7 votes
3 answers
4k views

What do the zeros of the transfer function tell you about a system?

7 votes
2 answers
8k views

Is inviscid flow necessarily turbulent?

6 votes
2 answers
243 views

When is DC power generation superior over AC power generation?

6 votes
4 answers
1k views

Can all electromagnetic spectra be focused like a laser?

6 votes
4 answers
899 views

Why do we prefer resistance over conductivity in describing Ohm's law?

6 votes
1 answer
3k views

Why use steam in the rankine cycle?

6 votes
1 answer
3k views

Deriving the turbulent kinetic energy equation

5 votes
1 answer
560 views

How to measure turbulence parameters experimentally?

5 votes
2 answers
683 views

Is there a theoretical bound to how tall a structure can be built?

4 votes
1 answer
2k views

Why do we need to condense steam in the rankine cycle?

4 votes
1 answer
986 views

Estimating the time required to heat a rod by a certain $\Delta T$

4 votes
0 answers
481 views

How should I set the turbulent prandtl number in a turbulent compressible flow simulation?

4 votes
2 answers
796 views

Should I expect fluid velocity within a pipe to increase beyond the inlet velocity?

3 votes
2 answers
209 views

What system of pde's models ice melt flow?

3 votes
1 answer
211 views

How to control suction strength on a breast pump?

2 votes
1 answer
2k views

Why use different specific heat capacities in the energy equations for incompressible and compressible fluid flow?

2 votes
0 answers
264 views

Obtaining the correct flat plate turbulent boundary layer thickness in a CFD simulation

2 votes
1 answer
398 views

How to measure calories actually burned from exercise?

2 votes
1 answer
129 views

Can I neglect kinetic energy when modeling convective heat transfer for viscous, low mach airflow? Why or why not?

1 vote
4 answers
1k views

How to measure the pressure inside a bottle rocket?

1 vote
2 answers
5k views

How can I calculate the buoyant force on an object without knowing in advance the amount of water displaced?

1 vote
1 answer
183 views

Can isotropic materials become anisotropic under elastic deformation?