TY - JOUR ID - 2007-17 T1 - Mathematical analysis of unsteady flows of fluids with pressure, shear-rate, and temperature dependent material moduli that slip at solid boundaries A1 - Bulíček, Miroslav A1 - Málek, Josef A1 - Rajagopal, K. R. JA - SIAM J. Math. Anal. Y1 - 2009 VL - 41 IS - 2 SP - 665 EP - 707 SN - 0036-1410 N1 - Preprint no. 2007-17 UR - http://www.karlin.mff.cuni.cz/ncmm/preprints/07176085904BuMaRa300507SIAM.pdf M2 - doi: 10.1137/07069540X KW - existence result for large data KW - Generalized Navier-Stokes-Fourier system KW - Incompressible fluids KW - Navier’s slip boundary condition KW - Pressure-dependent viscosity KW - shear-dependent viscosity KW - suitable weak solution KW - temperature-dependent viscosity KW - unsteady flows KW - weak solution N2 - In Bridgman's treatise [The Physics of High Pressures, MacMillan, New York, 1931], he carefully documented that the viscosity and the thermal conductivity of most liquids depend on the pressure and the temperature. The relevant experimental studies show that even at high pressures the variations of the values in the density are insignificant in comparison to that of the viscosity, and it is thus reasonable to assume that the liquids in question are incompressible fluids with pressure dependent viscosities. We rigorously investigate the mathematical properties of unsteady three-dimensional internal flows of such incompressible fluids. The model is expressed through a system of partial differential equations representing the balance of mass, the balance of linear momentum, the balance of energy, and the equation for the entropy production. Assuming that we have Navier's slip at the impermeable boundary we establish the long-time existence of a (suitable) weak solution when the data are large. M1 - fjournal={SIAM Journal on Mathematical Analysis} M1 - mrclass={76D03 (35Q35 76A05)} M1 - mrnumber={MR2515781} ER -