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Journal of Applied Mechanics and Technical Physics

2016 year, number 6

REPRESENTATION OF THE FORCES ACTING ON A PARTICLE IN UNSTEADY FLOW

O.B. Bocharov1, Ya.S. Ignatenko1,2
1Baker Hughes Novosibirsk Technology Center, Novosibirsk, 630090, Russia
2Novosibirsk State University, Novosibirsk, 630090, Russia
Keywords: псевдопластическая жидкость, обтекание шара, нестационарное течение, ускоряющийся поток, сила Бассэ, pseudoplastic fluid, flow around sphere, unsteady flow, accelerating flow, Basset force

Abstract

The flow around a stationary process sphere by an accelerating flow of a pseudoplastic fluid at Reynolds numbers Re = 0-200 and dimensionless acceleration Ga = 10-104 is studied by numerical simulation. It is shown that the analytical expression of the force of the added mass for an ideal fluid is appropriate for a pseudoplastic fluid. An expression for calculating the hereditary force of the type of the Basset force for a pseudoplastic fluid is proposed.