ISSN:
1432-0681
Schlagwort(e):
Key words Shear flow
;
thin film
;
linear instability
;
power-law fluid
;
slow/rapid flow
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Maschinenbau
Notizen:
Summary We study the stability of thin films of fluids subject to gravity along inclined planes, obeying a power-law constitutive relation of the Ostwald-de Waele type. A first analysis, in which the inertia terms are ignored, shows such flow to be stable against small, linear perturbations; a second analysis, in which the inertia terms are included, proves that there are stable and unstable regimes that are separated by a critical Ostwald-de Waele number O. Numerical computations for selected values of O demonstrate the decay and growth rate behavior of some finite amplitude disturbances.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s004190050154
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