4 ms·
I googled around and found this paper to be far more compelling than any of Wikipedia's vague explanations: http://arxiv.org/abs/1310.6514 http://arxiv.org/abs/
by ohwaitnvm 10y ago
I googled around and found this paper to be far more compelling than any of Wikipedia's vague explanations:
http://arxiv.org/abs/1310.6514 http://arxiv.org/abs/1310.6514
- nathancahill 10y agoBond relaxation was my first thought too.
- Aelinsaar 10y agoDriving home once again, what an interesting and unusual molecule our ubiquitous friend 'water' really is. Polar, bent, and funky; expanding when frozen, incompressible as a liquid.
- cordite 10y agoIs it truly incompressible, or just enough for practical uses?
- marcosdumay 10y agoNothing is truly incompressible.
- SilasX 10y agoRight, if something were truly incompressible, the speed of sound through it would be infinite and you could propagate signals through it faster than allowed by relativity.
- x86_64Ubuntu 10y agoIt's not incompressible it's just that when you compress it, it will stay liquid and it's volume doesn't really decrease that much as the chart below shows. http://engineering-references.sbainvent.com/thermodynamics/pictures/p-v-diagram-expands.jpg http://engineering-references.sbainvent.com/thermodynamics/p...
- leephillips 10y ago"The compressibility of water reduces the sea level by about 40 m giving us 5% more land." http://www.starfish.ch/reef/ocean.html http://www.starfish.ch/reef/ocean.html
- angersock 10y agoIt's only like ten times more compressible than diamond, if I remember my schooling correctly. In liquid water, mechanical engineers are usually free to assume incompressability. This makes solving the math a lot easier, though absolutely cannot be done for gases.
- SilasX 10y agoWell, even for gasses, your results are accurate enough as long as the Mach number is below 0.3: http://encyclopedia2.thefreedictionary.com/incompressible+flow http://encyclopedia2.thefreedictionary.com/incompressible+fl...
- calgaryeng 10y agoThis is not done in practice. Be careful getting engineering advice from the Free Dictionary.
- SilasX 10y agoIt reflected what I was taught in fluid/gas dynamics courses for my degree, and you'll see the same point made in various other places.
- csense 10y agoYeah, this paper seems to explain it reasonably well, although I don't fully understand it...maybe I'll re-read it sometime this week.