Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with fluid-mechanics
Search options not deleted
user 34967
Questions relating to fluids at rest (fluid statics) or the forces and effects of fluids in motion (fluid dynamics).
2
votes
4
answers
276
views
Static pressure in a free jet
If I have a free jet that is subsonic, say simply the exhaust of a hair drier (operating with no heat), how does the jet pressure vary longitudinally along its axis, as it decelerates from moving to r …
- 731
1
vote
Accepted
Doubt about Reynolds number formula
I've never seen the second formula.
It's incorrect, unless it's a specific application like water where density is numerically 1 g/cc and they just don't write it.
The first formula
$$\mathrm{Re} =\fr …
- 731
1
vote
Calculate steam flow rate with pressure difference
Is this a very long pipe? Generally this type of pressure loss (aka head loss), assuming it is due to the pipe and not any features such as bends, valves, contractions, or other obstructions, is calc …
- 731
0
votes
Calculating the leakage of water in a pressurized vessel based on initial and final pressures?
Late to the party, but I think you would need an equation of state for the water (density as a function of pressure). For a gas this is the ideal gas law, but for water there is an extremely wide ran …
- 731
1
vote
Accepted
Notation on Continuity Eqn Derivation
It just means "located at the plane $x+dx$", and it really should be applied to the velocity, not the $dydz$.
Your cube has 6 faces. Flow in the $x$ direction can enter or exit the Control Volume by …
- 731
0
votes
Accepted
What does a dynamic-pressure loss coefficient of more than 1 mean (for eg air going through ...
The $C$ coefficient simply quantifies the pressure loss of a restriction as a scale multiple or fraction of the dynamic pressure $\frac 1 2 \rho v^2$. But the dynamic pressure is usually much less tha …
- 731
1
vote
0
answers
40
views
Orifice flow meter equation applicability, modeling leak flow
I am trying to determine the correct equation to model ideal gas flow rate through an orifice as a function of pressure. The equation below I found in Marks' Handbook for Mech Eng 8th Ed, p. 3-64 whi …
- 731
3
votes
How to determine time taken for tyre to deflate using CFD analysis?
I don't think CFD is the right tool. You can use an orifice equation, say from ASME, to calculate flow rate from inner and outer pressure. This takes the form of:
$$\dot{m}=\frac{EC_D}{\sqrt{1-\beta^4 …
- 731