Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-26T02:12:51.034Z Has data issue: false hasContentIssue false

Local existence and blow-up criterion for the Boussinesq equations

Published online by Cambridge University Press:  14 November 2011

Dongho Chae
Affiliation:
Department of Mathematics, Seoul National University, Seoul 151-742, Korea e-mail: [email protected]
Hee-Seok Nam
Affiliation:
Department of Mathematics, Seoul National University, Seoul 151-742, Korea

Synopsis

In this paper, we prove local existence and uniqueness of smooth solutions of the Boussinesq equations. We also obtain a blow-up criterion for these smooth solutions. This shows that the maximum norm of the gradient of the passive scalar controls the breakdown of smooth solutions of the Boussinesq equations. As an application of this criterion, we prove global existence of smooth solutions in the case of zero external force.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Beale, J. T., Kato, T. and Majda, A.. Remarks on the breakdown of smooth solutions for the 3-D Euler equations. Comm. Math. Phys. 94 (1984), 61–6.CrossRefGoogle Scholar
2Kato, T. and Ponce, G.. Commutator estimates and the Euler and Navier—Stokes Equations. Comm. Pure Appl. Math. 41 (1988), 891907.CrossRefGoogle Scholar
3Majda, A.. Vorticity and the mathematical theory of incompressible fluid flow (Princeton University Graduate Course lecture note (19861987).CrossRefGoogle Scholar
4Ohkitani, K.. Some mathematical aspects of 2D vortex dynamics. Proc. Miniconference of Partial Differential Equations and Applications, RIM-GARC Lecture Note Ser. 38 (1997), 3550.Google Scholar
5Weinan, E. and Shu, C.. Small-scale structures in Boussinesq convection. Phys. Fluids 6 (1994), 4958.Google Scholar