NUMERICAL ANALYSIS OF HEAT AND MASS TRANSFER FROM BUBBLES, DROPS, AND RIGID SPHERE |
Posted on:1981-11-03 | Degree:Ph.D | Type:Dissertation |
University:University of Illinois at Urbana-Champaign | Candidate:SHARPE, LONNIE, JR | Full Text:PDF |
GTID:1472390017966477 | Subject:Mechanical engineering |
Abstract/Summary: | |
Steady state heat or mass transfer from spherical objects at low values of the Reynolds number is investigated. Heat or mass transfer to a drop in an electric field; to single translating bubbles, drops, and rigid spheres; and to rigid and fluid spheres in shear flow is considered. The energy equation is solved using finite difference techniques. A method known as upwind differencing is used in approximating the convective terms. Far from the sphere, a 'transmitting' boundary condition is introduced; the dimensionless temperature is held zero for inward radial flow and the dimensionless temperature gradient is held zero for outward radial flow at a fixed distance from the sphere's surface. Heat transfer results are obtained for the creeping flow for Peclet numbers up to 10('3). |
Keywords/Search Tags: | Heat, Transfer, Rigid, Flow |
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