Timeline for Direction of forces due to pressure
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 23, 2020 at 8:41 | vote | accept | Brian | ||
| Apr 19, 2020 at 1:00 | answer | added | Claudio Saspinski | timeline score: 1 | |
| Apr 18, 2020 at 16:28 | answer | added | looksquirrel101 | timeline score: 2 | |
| Apr 18, 2020 at 16:03 | comment | added | looksquirrel101 | @DDD4C4U - I think that you need to clarify your question then. The net force on an element of material is indeed directly related to the pressure gradient. The pressure gradient is a vector quantity and does have a direction. The net force is in the opposite direction of the pressure gradient. Is that all you are asking? | |
| Apr 18, 2020 at 15:10 | comment | added | Brian | I haven't reached to tensors but I think I get what you mean. However I don't think this is a complete answer | |
| Apr 18, 2020 at 15:08 | comment | added | Chet Miller | The magnitude of pressure can be treaded as a field, But pressure is really the isotropic part of the stress tensor, and, as an isotropic 2nd order tensor, it acts equally in all directions. This is Pascal's principle. | |
| Apr 18, 2020 at 15:04 | comment | added | Brian | Well I'm not accustomed with rigorous definition of the word potential but if I were ot put precisely what I meant, I was talking about how pressure is a scalar fielD and also the fact that pressure difference causes force ( similar to the gradient of regular potential) | |
| Apr 18, 2020 at 15:03 | comment | added | Chet Miller | Pressure can not generally treated as a potential. | |
| Apr 18, 2020 at 15:02 | comment | added | Brian | I have heard of the analogies but I don't think they particularly address the issue I'm having in the problem | |
| Apr 18, 2020 at 14:28 | comment | added | looksquirrel101 | There is a direct analogy between the current flowing in a conductor due to a voltage gradient, and the flow through a porous medium due to a pressure gradient. Perhaps you can look up Darcy's law and Ohm's law and view the analogies. | |
| Apr 18, 2020 at 13:54 | history | asked | Brian | CC BY-SA 4.0 |