Abstract: A lumped-mass surface-temperature thermal model for POL (petroleum, oil, lubricants) bulk storage tanks is developed. The model utilizes twelve ordinary, coupled, first-order differential equations, ...

Abstract: A re-evaluation of the skin friction coefficient and equivalent sand roughness data reported by Schlichting in 1936 on fourteen rough surfaces is presented. Several assumptions made during the ...

Abstract: A discrete element model for turbulent flow over rough surfaces has been derived from basic principles. This formulation includes surface roughness form drag and blockage effects as a constituent ...

Abstract: Previous work by one of the authors entailed modeling of a packed bed thermal energy storage system utilizing phase-change materials (PCM). A principal conclusion reached is that the use of a ...