## Title data

Brooker, A. M. H. ; Patterson, John C. ; Graham, Tasman ; Schöpf, Wolfgang:

**Convective instability in a time-dependent buoyancy driven boundary layer.**

*In:* International Journal of Heat and Mass Transfer.
Vol. 43
(January 2000)
Issue 2
.
- pp. 297-310.

ISSN 0017-9310

DOI: https://doi.org/10.1016/S0017-9310(99)00127-1

## Abstract in another language

The stability of the parallel time-dependent boundary layer adjacent to a suddenly heated vertical wall is described. The flow is investigated through experiments in water, through direct numerical simulation and also through linear stability analysis. The full numerical simulation of the flow shows that small perturbations to the wall boundary conditions, that are also present in the experimental study, are responsible for triggering the instability. As a result, oscillatory behaviour in the boundary layer is observed well before the transition to a steady two-dimensional flow begins. The properties of the observed oscillations are compared with those predicted by a linear stability analysis of the unsteady boundary layer using a quasi-stationary assumption and also using non-stationary assumptions by the formulation of parabolized stability equations (PSE).

## Further data

Item Type: | Article in a journal |
---|---|

Refereed: | Yes |

Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg Profile Fields > Advanced Fields > Nonlinear Dynamics Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V Profile Fields Profile Fields > Advanced Fields |

Result of work at the UBT: | No |

DDC Subjects: | 500 Science > 530 Physics |

Date Deposited: | 08 Oct 2018 09:00 |

Last Modified: | 08 Oct 2018 09:00 |

URI: | https://eref.uni-bayreuth.de/id/eprint/43000 |