INERTIAL-CIRCULATING PRINCIPLE OF SWIMMING AND FLIGHT OF HYDRO- AND AEROBIONTS. PART 2

  • A. V. Shekhovtsov Institute of Hydromechanics NASU, Kyiv, Ukraine
Keywords: Inertia-circulation principle, swimming, flight, thrust, oscillation of the wing-propulsion

Abstract

For the case of modeling in the nonlinear ideal formulation of oscillations of an infinitely thin profile of the wing-propulsion, three components of the thrust force coefficient were distinguished - inertial, circulating, and vortex. The contribution to the traction force of each of the obtained components is investigated and the mechanisms of wing traction force formation at different types of oscillations are explained. It is revealed that the inertial-circulating principle underlies the work of the wing-propulsion. The inductive effect of the vortex trail on the traction force is small and negative.

References

Shekhovtsov A.V. Non-Linear Mathematical Model of Dolphin Tail Fin Motion. International Journal of Fluid Mechanics Research. 2001. 28, № 1/2. P. 240–265.

Shekhovtsov A.V. Non-linear non-stationary aerohydrodynamics of wingpropulsor with two degrees of freedom: Abstr. of the diss. for the degree of cand. of phys. and math. sci.: 01.02.05, Kyiv. 1999. 20 p.

Shekhovtsov A.V. A Method for Evaluation of an Unsteady Pressure Field in a Mixed Potential-Vortical Domain Adjacent to the Rotating Wing. International Journal of Fluid Mechanics Research. 2002. 29, № 1. P. 111–123.

Published
2021-07-20