An Extended Evaluation of a Particulate Precipitating Heat Transfer Surface.
ARMY CONSTRUCTION ENGINEERING RESEARCH LAB CHAMPAIGN ILL
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The laminar Navier-Stokes equations were solved for Reynolds Numbers ranging between zero and 3000,000 over a typical element in an array of laterally disposed cavity bearing, piecewise continuous, front step-back steps. An inertial particle tracking model was coupled with the flow field solution to predict collection efficiency. Qualitative experimental confirmation of the flow field was obtained from flow visualization experiments. Experimental analysis of the fractional aerosol capture efficiency of the flow obstruction indicates that for small particles in turbulent flow, diffusion governs collection. The heat transfer effectiveness of the geometry was estimated within 6 of the experimental values using a novel coupling of the Chapman-Korst cavity flow model and the equivalent wedge similarity solution. Modified author abstract
- Physical Chemistry