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COMPUTATION OF DILUTE PARTICULATE LAMINAR FLOW OVER A BACKWARD-FACING STEP

โœ Scribed by I. E. BARTON

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
670 KB
Volume
22
Category
Article
ISSN
0271-2091

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โœฆ Synopsis

Particle-laden flows are calculated for a classical laminar backward-facing step problem. The particle tracks are calculated using a recently developed exponential Lagrangian tracking scheme. The behaviour of the particleladen flow is considered for various inlet for Reynolds number, Stokes numbers and void hctions. Doping the flow with low-Stokes-number particles has the effect of increasing the inlet inertia of the flow and this increases the strength of the recirculation behind the step. High-Stokes-number particles are dominated by graVitati0~1 effects which affect the flow accordingly. Differences between the single-phase flow and the particle-laden flows are therefore dependent on the Stokes number and increase linearly with void fiaction.

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