Hydrodynamic and heat transfer interactions in particle assemblages at intermediate Reynolds numbers

Conference · Sat Jan 01 04:00:00 EST 1983 · Ann. N.Y. Acad. Sci.; (United States)

OSTI ID:5778941

Tal, R ^[1]; Lee, D N; Sirignano, W A

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1. Thau

Hydrodynamic and heat transfer interactions in sphere assemblages at intermediate Reynolds numbers have been studied as part of a theoretical model of interactions between vaporizing fuel droplets. The wake effects have been estimated by considering two spheres in tandem. Since the wake effects of reducing the transport rates are significant even for large spacing between the spheres, the spherical cell models used in low Reynolds number hydrodynamics are inadequate for intermediate Reynolds numbers; therefore, cylindrical cell models are suggested. The Navier-Stokes and energy equations have been solved numerically within the representative cells for intermediate Reynolds numbers. Using a nonuniform mesh suited for the problem, several spheres are considered in tandem and the importance of wake effects in considerably reducing the drag and Nusselt number in the bulk is discussed.

• Research Organization: Carnegie-Mellon Univ., Pittsburgh, PA
• OSTI ID: 5778941
• Report Number(s): DOE/ER/12020-1; CONF-8206187-
• Conference Information: Journal Name: Ann. N.Y. Acad. Sci.; (United States) Journal Volume: 404
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
DROPLETS
ENERGY TRANSFER
EVAPORATION
FLUID MECHANICS
HEAT TRANSFER
MASS TRANSFER
MECHANICS
PARTICLES
PHASE TRANSFORMATIONS
REYNOLDS NUMBER