Stability of Density Stratified Flow in the Boundary Layer

Autor:	Ming-liang Xie, Jianzhong Lin
Rok vydání:	2006
Předmět:	Physics Mechanical Engineering Amplitude function Thermodynamics Laminar flow Mechanics Condensed Matter Physics Stability (probability) Viscosity Boundary layer Mechanics of Materials Modeling and Simulation Blasius boundary layer Stratified flow Diffusion (business)
Zdroj:	Journal of Hydrodynamics. 18:505-511
ISSN:	1878-0342 1001-6058
DOI:	10.1016/s1001-6058(06)60127-3
Popis:	The stability of the laminar flat plate boundary layer is investigated numerically by solving the linear Orr–Sommerfeld equations for the disturbulence amplitude function. These equations include the terms of viscosity, density stratification, and diffusion. Neutral stability curve and the critical Re numbers are computed for various Richardson ( Ri ) numbers and Schmidt ( Sc ) numbers. The results show that the larger the Ri , the larger the critical Re for Sc Ri Sc is very small or the mass diffusion coefficient is very large. But for Ri >0, the effects of diffusion are reversed for Sc Sc >10, the critical Re rapidly decreases to zero as the Sc increases for a given Ri number. The critical Re rapidly decreases as the Ri increases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac304b802c5864bb4dc0260a26547386 https://doi.org/10.1016/s1001-6058(06)60127-3 Zobrazit plný text záznamu Full Text from ScienceDirect Full text from SpringerLink