Startseite Technik Analytical study of Küppers-Lortz instability in a Newtonian-Boussinesq liquid with rigidisothermal boundaries
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Analytical study of Küppers-Lortz instability in a Newtonian-Boussinesq liquid with rigidisothermal boundaries

  • P. G. Siddheshwar und B. N. Shivakumar
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Mathematical Fluid Mechanics
Ein Kapitel aus dem Buch Mathematical Fluid Mechanics

Abstract

The paper deals with primary and secondary instabilities in Rayleigh- Benard-Taylor convection in the case of rigid-isothermal boundaries. The singleterm Galerkin approximation is used in obtaining estimates of the critical Rayleigh number and critical wave number for primary instability and critical Taylor number and critical angle between the intersecting rolls in the case of the Kuppers-Lortz secondary instability. Comparison is made between the results of rigid isothermal boundaries with those of free isothermal boundaries.

Abstract

The paper deals with primary and secondary instabilities in Rayleigh- Benard-Taylor convection in the case of rigid-isothermal boundaries. The singleterm Galerkin approximation is used in obtaining estimates of the critical Rayleigh number and critical wave number for primary instability and critical Taylor number and critical angle between the intersecting rolls in the case of the Kuppers-Lortz secondary instability. Comparison is made between the results of rigid isothermal boundaries with those of free isothermal boundaries.

Heruntergeladen am 31.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/9783110696080-001/html
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