Linear stability bounds in a convection problem
for variable gravity field

Dragomirescu Ioana; Georgescu Adelina

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DRAGOMIRESCU, Ioana, GEORGESCU, Adelina. Linear stability bounds in a convection problem for variable gravity field. In: Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, 2006, nr. 3(52), pp. 51-56. ISSN 1024-7696.

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Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica

Numărul 3(52) / 2006 / ISSN 1024-7696 /ISSNe 2587-4322

Linear stability bounds in a convection problem for variable gravity field

Pag. 51-56

Dragomirescu Ioana¹, Georgescu Adelina²

¹ Politehnica University of Timisoara,
² University of Pitesti

Disponibil în IBN: 21 decembrie 2015

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Rezumat

A problem governing the convection-conduction in a horizontal layer bounded by rigid walls of a fluid heated from below for a linearly decreasing across the layer gravity field is reformulated as a variational problem. Stability bounds from the case of classical convection [1] and the case of convection in a linearly decreasing across the layer gravity field are compared. The new criterion, which yields good stability bounds for the stability limit, is shown by the numerical evaluations obtained in [2–4].

Cuvinte-cheie
convection,

varying gravity field.

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