Natural convection of a two-layer fluid inaside-heated cavity

Autor:	A.m. Bethancourt L, M. Hashiguchi, K. Kuwahara, J.M. Hyun
Rok vydání:	1999
Předmět:	Fluid Flow and Transfer Processes Flow visualization Materials science Natural convection Mechanical Engineering Thermodynamics Marangoni number Mechanics Heat transfer coefficient Condensed Matter Physics Capillary number Physics::Fluid Dynamics Surface tension Flow (mathematics) Heat transfer
Zdroj:	International Journal of Heat and Mass Transfer. 42:2427-2437
ISSN:	0017-9310
DOI:	10.1016/s0017-9310(98)00311-1
Popis:	Comprehensive numerical computations are made of natural convection inaside-heated square cavity. Two layers of immiscible Boussinesq liquids are contained intheenclosure. Numerical solutions are acquired to the governing Navier–Stokes equations. Noapriori assumptions are made on the shape and dynamical role of the interface. The behaviourofthe interface is obtained as part of the solution. Attention is directed to the effect of adeformableinterface and surface tension on the flow and heat transfer characteristics. Explicitinfluences ofthe capillary number and the Marangoni number are scrutinized. The global flowpatterns arevisualized, and local and averaged heat transfer coefficients along the wall are plotted.Thelimitations of the previous models using a non-deformable flat interface are pointed out.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8c0a7e6f55ce57106f4719c8a87a02e https://doi.org/10.1016/s0017-9310(98)00311-1 Zobrazit plný text záznamu Full Text from ScienceDirect