tailieunhanh - Heat Transfer Handbook part 6

Heat Transfer Handbook part 6. The Heat Transfer Handbook provides succinct hard data, formulas, and specifications for the critical aspects of heat transfer, offering a reliable, hands-on resource for solving day-to-day issues across a variety of applications. | 40 BASIC CONCEPTS u specific internal energy J kg V volume m3 V velocity vector m s V velocity m s w width m x length coordinate m generalized coordinate dimensions vary Y mean plane distance m y length coordinate m z length coordinate m fin spacing m Greek Letter Symbols a accommodation parameter dimensionless thermal diffusivity m2 s P coefficient of volumetric expansion m-1 A change dimensionless 8 thickness m e area ratio dimensionless n fin efficiency dimensionless 0 angle in cylindrical coordinate system rad angle in spherical coordinate system rad A mean free path of molecules m p dynamic viscosity N m s v kinematic viscosity m2 s n group dimensionless p density kg m3 a surface roughness m surface tension N m Stefan-Boltzmann constant W m2 K4 normal stress N m2 t shear stress N m2 i viscous dissipation factor s-1 angle in spherical coordinate system rad V vector operator s-1 V2 Laplacian operator s-2 Roman Letter Subscripts c contact cd conduction co contact cv convection D diffusion e equivalent f fin fluid REFERENCES 41 fl g flow generated gaP in standard acceleration of gravity inlet condition I liquid m melting max maximum condition min minimum condition n normal direction o nominal value out outlet condition P constant pressure r radiation s radial direction harmonic mean sat surface condition saturated condition sP spreading sf surface parameter in boiling w wall condition x x-coordinate direction y y-coordinate direction z z-coordinate direction œ free stream condition Greek Letter Subscripts e e-coordinate direction phase change -coordinate direction Superscripts a exponent in dimensional analysis b exponent in dimensional analysis c exponent in dimensional analysis n exponent in natural convection correlation REFERENCES Bejan A. 1995 . Convection Heat Transfer 2nd Ed Wiley New York. Bejan A. 1997 . Advanced Engineering Thermodynamics 2nd Ed Wiley New York. Bodoia J. R. and Osterle J. F. 1964 . The development of free convection between heated .