Книга: James Mawira Mugambi «Convective Heat Transfer in a Laminar Boundary Layer»
|
Производитель: "LAP Lambert Academic Publishing" Numerical solutions of unsteady laminar free convection from an incompressible viscous fluid pas a body with curved surfaces is presented in this study. Such immersed-body flows are commonly encountered in engineering studies e. g in aerodynamics (airplanes, rockets, and projectiles), hydrodynamics (ships, submarines, torpedoes) among many others. The dimensionless governing equations of the flow that are unsteady and non-linear are solved by an efficient, accurate and stable finite differences scheme of Crank-Nicolson type. The velocity and temperature fields have been studied by varying the area of the curvature, pressure gradients and Peclet number. Results of velocity variations and temperature variations were obtained and presented graphically. It was however noted that when the curvature of the surface was increased, the heat dissipation also increased, thus affecting both temperature and velocity. These findings have major applications in designing devices requiring less... ISBN:9783659541513 Издательство: "LAP Lambert Academic Publishing" (2014)
ISBN: 9783659541513 |
См. также в других словарях:
Convective heat transfer — See also: Heat transfer and convection This figure shows a calculation for thermal convection. Colors closer to red are hot areas and colors closer to blue are cold areas. In this figure, a hot, less dense lower boundary layer sends plumes… … Wikipedia
Boundary layer — For the anatomical structure, see Boundary layer of uterus. Boundary layer visualization, showing transition from laminar to turbulent condition In physics and fluid mechanics, a boundary layer is that layer of fluid in the immediate vicinity of… … Wikipedia
Nusselt number — In heat transfer at a boundary (surface) within a fluid, the Nusselt number is the ratio of convective to conductive heat transfer across (normal to) the boundary. Named after Wilhelm Nusselt, it is a dimensionless number. The conductive… … Wikipedia
Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… … Wikipedia
POHLHAUSEN — GERMANY (see also List of Individuals) 20.5.1890 Mittwaida/D 18.11.1980 Gainesville FL/USA Karl Pohlhausen was educated as a mathematician at the Universities of Jena and Göttingen, there being attached to Ludwig Prandtl (1875 1953). In 1919,… … Hydraulicians in Europe 1800-2000
atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… … Universalium
