Investigation of heat generation/absorption on natural convection flow in a vertical annular micro-channel: An exact solution

摘要: Purpose The purpose of this paper is to further extend the work Weng and Chen (2009) by considering heat generation/absorption nature fluid. Design/methodology/approach Exact solution momentum equation derived separately in terms Bessel’s function first second kind for heat-generating fluid modified absorbing fluid. Findings During course numerical computations, it found that skin friction rate transfer at outer surface inner cylinder increases with increase generation parameter while reverse trend case absorption parameter. Originality/value In view amount works done on natural convection internal generation/absorption, becomes interesting investigate effect important activity flow a vertical annular micro-channel. The fluid.