Vibrational and convective instability of a plane horizontal fluid layer at finite vibration frequencies
Autor: | G. Z. Gershuni, I. O. Keller, B. L. Smorodin |
---|---|
Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Fluid Dynamics. 31:666-671 |
ISSN: | 1573-8507 0015-4628 |
DOI: | 10.1007/bf02078217 |
Popis: | The vibrational-convective instability of a plane horizontal fluid layer subject to longitudinal harmonic vibrations of finite frequency and transverse stratification in a static gravity field is studied. The analysis is based on the complete convection equations in the Boussinesq approximation. It is demonstrated that in the limiting case of high-frequency vibrations the results thus obtained coincide with those obtained earlier on the basis of the averaged equations. In the limiting low-frequency case the nature of the instability is quite different being due to the instability of oscillating counterstreams. |
Databáze: | OpenAIRE |
Externí odkaz: |