The ideal MR fluid would never settle, but developing this ideal fluid is as highly improbable as developing a perpetual motion machine according to our current understanding of the laws of physics.
22.
JR does not seem to realize that GR itself actually presumes that space-time may be treated as an ideal fluid ( which is more like a gas than anything else ).
23.
From the mid-1960s he primarily deal with the thermodynamics of continua, the theory of elastic-plastic continua ( with Naghdi ) and various hydrodynamic problems ( such as jets in ideal fluids ).
24.
The earliest distinguished studies of academic type on the theory of a cavitating flow with free boundaries and supercavitation were published in the book " Jets, wakes and cavities " followed by " Theory of jets of ideal fluid ".
25.
I suspect there will also be problems with moving fluids, such as in viscous flow, or in boundary layers, but I don't recall any examples, though we know, for example, that Bernoulli's equation doesn't work for some non-ideal fluids.
26.
For a compressible spherical particle with a diameter much smaller than the wavelength of acoustic waves in an ideal fluid, the acoustic radiation force can be calculated by \ mathbf { \ mathit { F ^ { rad } } } =-\ nabla \ mathit { U }, where \ mathit { U } is a given quantity, also called acoustic potential energy.
27.
Ricca's main research interests lie in potential theory, ideal fluid dynamics, particularly as regards geometric and topological aspects of vortex flows and magnetic fields forming Newton Institute for Mathematical Sciences ( Cambridge, UK ), followed by a CIME summer school under the auspices of the Italian Mathematical Union ( UMI ), and in 2011 a 3-month program on knots and applications, held at the Ennio De Giorgi Mathematical Research Centre of the Scuola Normale Superiore in Pisa.
