caa a22 4500 477077498 CHVBK 20180405111442.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00036615 doi (NATIONALLICENCE)springer-10.1007/BF00036615 Sano Takao Department of Energy Systems Engineering, University of Osaka Prefecture, Sakai, Osaka, Japan aut Unsteady forced and natural convection around a sphere immersed in a porous medium [Elektronische Daten] [Takao Sano] Unsteady forced and natural convection around a sphere immersed in a fluid-saturated porous medium is investigated. The sphere is suddenly heated and, subsequently, maintains a constant temperature over the surface. For the forced convection problem, the method of matched asymptotic expansions is used to obtain an asymptotic solution of the energy equation in terms of the Peclet number. For the natural convection problem, asymptotic solutions in terms of the Rayleigh number are obtained by means of a regular perturbation method. Kluwer Academic Publishers, 1996 Porous media nationallicence Unsteady convection nationallicence Sphere nationallicence Matched asymptotics nationallicence Journal of Engineering Mathematics Kluwer Academic Publishers; http://www.wkap.nl 30/5(1996-09-01), 515-525 0022-0833 30:5<515 1996 30 10665 https://doi.org/10.1007/BF00036615 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00036615 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Sano Takao Department of Energy Systems Engineering, University of Osaka Prefecture, Sakai, Osaka, Japan aut NATIONALLICENCE 773 0- Journal of Engineering Mathematics Kluwer Academic Publishers; http://www.wkap.nl 30/5(1996-09-01), 515-525 0022-0833 30:5<515 1996 30 10665 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer