Timeline for Do speed and density exhibit a linear relationship?
Current License: CC BY-SA 4.0
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| Jan 14 at 9:23 | comment | added | jwzumwalt | Bernoulli's equation continues to work fine. Bernoulli is change (delta) speed vs pressure. For example water is considered uncompressible (%1<) but Bernoulli's equation continues to work, therefor it is not primarily related to density. You did make a good point that momentum is also related to the compress-ability in a dynamic situation (as is friction). My guess is friction is the major player at lower speeds and momentum plays the largest role at some point as speed increases. | |
| Jan 14 at 9:16 | history | edited | jwzumwalt | CC BY-SA 4.0 |
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| Jan 13 at 23:53 | comment | added | Wyatt | @jwzumwalt Ah okay, thanks for your help. One last thing : do you believe that my guess(es) in my question is correct? (I made a few edits and added some things) | |
| Jan 13 at 19:42 | comment | added | jwzumwalt | Density is not linear to speed - there is little density increase below 250mph but disproportional to increase with speed. For example the density at 500mph is more than twice as much as 250mph. And the density at 2000mph is more than twice 1000mph. The disproportional density is primarily due to the non-linear property of friction (as explained above). | |
| Jan 13 at 19:33 | history | edited | jwzumwalt | CC BY-SA 4.0 |
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| Jan 13 at 19:27 | history | edited | jwzumwalt | CC BY-SA 4.0 |
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| Jan 13 at 3:32 | comment | added | Wyatt | I edited my question and added the last section to it, which might help you see where I'm coming from. (about the density below Mach 0.3 part) | |
| Jan 12 at 19:27 | comment | added | Camille Goudeseune | Why? Because it's been measured. | |
| Jan 12 at 18:23 | comment | added | Wyatt | Oh okay, thanks for your response. So I have a guess why the density doesn't change much below ~250 MPH, but I don't know for sure, so could you possibly explain that to me? | |
| Jan 12 at 18:16 | history | answered | jwzumwalt | CC BY-SA 4.0 |