Viscous heating effects in fluids with temperature-dependent viscosity: triggering of secondary flows
نویسندگان
چکیده
منابع مشابه
Viscous heating effects in fluids with temperature-dependent viscosity: triggering of secondary flows
Viscous heating can play an important role in the dynamics of fluids with strongly temperature-dependent viscosities because of the coupling between the energy and momentum equations. The heat generated by viscous friction produces a local temperature increase near the tube walls with a consequent decrease of the viscosity and a strong stratification in the viscosity profile. The problem of vis...
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The system of equations describing a nonstationary ow of a quasi-newtonian uid, with temperature dependent viscosity and with the viscous heating, is considered. Existence of at least one weak solution is proved, i.e. we get existence of at least one velocity eld having nite energy and existence of a nonnegative temperature eld. Its regularity is a consequence of the L 1-forcing term generated ...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2005
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112005006075