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Numerical study of natural convection in a vertical cylindrical partially annular

100%

Medebber M. A. , Retiel N.

tom Vol. 22, nr 1

77--92

A study of free convection in a vertical cylinder partially annulus is conducted numerically. Uniform temperature is imposed cross a vertical wall, while the top and bottom walls are adiabatic. The governing equations are solved numerically by using a finite volume method. The coupling between the continuity and momentum equations is effected using the SIMPLER algorithm. Solutions have been obtained for Prandtl numbers equal to 7.0, Rayleigh numbers of 103 to 106 and height ratios of 0 to 1. The influence of physical and geometrical parameters on the streamlines, isotherms, average Nusselt has been numerically investigated.

Transient free convection flow of dissipative fluid past an infinite vertical porous plate

67%

Soundalgekar V. M. , Uplekar A. G. , Jaiswal B. S.

tom Vol. 56, nr 1

7-17

A finite-difference analysis of transient free convection flow of a dissipative fluid past an infinite vertical porous plate is presented here. Velocity, temperature, skin-friction and Nusselt number are shown graphically and the effects of different parameters on the flow field are discussed.