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Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, 2005, Number 1, Pages 85–90
(Mi basm124)
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A nonlinear hydrodynamic stability criterion derived by a generalized energy method
Cătălin Liviu Bichira, Adelina Georgescub, Lidia Palesec a Research and Design Institute for Shipbuilding-ICEPRONAV Galatzi, Department of Ship's Hydrodynamic, Galatzi, Romania
b University of Piteşti, Department of Applied Mathematics,
Piteşti, Romania
c University Campus, Department of Mathematics, Bari, Italy
Abstract:
By applying a new variant of the A. Georgescu – L. Palese – A. Redaelli (G-P-R) method [8], based on the symmetrization of a linear operator, we deduce a nonlinear stability criterion of a state of thermal conduction of a horizontal fluid layer subject to a vertical upwards uniform magnetic field and a vertical upwards constant temperature gradient. The Boussinesq approximation is used. The upper and lower surfaces of the layer are two rigid walls. It is assumed that the magnetic Prandtl number is strictly greater than unity.
Keywords and phrases:
Nonlinear stability, Hydrodynamic, Magnetic Benard linebreak problem.
Received: 15.02.2005
Citation:
Cătălin Liviu Bichir, Adelina Georgescu, Lidia Palese, “A nonlinear hydrodynamic stability criterion derived by a generalized energy method”, Bul. Acad. Ştiinţe Repub. Mold. Mat., 2005, no. 1, 85–90
Linking options:
https://www.mathnet.ru/eng/basm124 https://www.mathnet.ru/eng/basm/y2005/i1/p85
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Abstract page: | 271 | Full-text PDF : | 101 | References: | 36 | First page: | 2 |
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