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Numerical investigation of the tangential stress effects on a fluid flow structure in a partially open cavity


Mathematical and numerical modeling of fluid flows in the domains with free boundaries under co-current gas flow is widely investigated nowadays. A stationary problem of fluid motion in a rectangular cavity with a non-deformed free boundary is studied in a two-dimensional statement. The tangential stresses created on the free boundary by an adjoint gas flow are considered to be a driving force for a fluid motion. The influence of the cavity geometry (cavity aspect ratio) and of the free boundary (length of the open part of the boundary) on the velocity field is investigated numerically. The simulations are carried out for different values of the gas Reynolds numbers. The characteristic values for the flow parameters as well as geometrical characteristics described in this paper are motivated by the main features of the CIMEX-1 experiments prepared for the International Space Station. The paper presents examples of the fluid flow structure in the open cavities and conclusions.

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Correspondence to O. N. Goncharova.

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Goncharova, O.N., Kabov, O.A. Numerical investigation of the tangential stress effects on a fluid flow structure in a partially open cavity. J. Engin. Thermophys. 22, 216–225 (2013).

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  • Vortex
  • Free Boundary
  • Tangential Stress
  • Vortex Structure
  • Open Cavity