Viscous flow around a transversally oscillating elliptic cylinder
Abstract
To furnish some fundamental information about viscous effects of flow on the aerodynamic characteristic of an elliptic cylinder, the Navier-Stokes equations are solved for flow around both stationary and transversally oscillating elliptic cylinders at Reynolds numbers of Re=40 and 80. Aerodynamic forces and pressure acting on an elliptic cylinder in the range of Reynolds numbers Re=40 to 20000 were measured. A good agreement was found between the calculated results and the experimental ones for steady and unsteady aerodynamic parameters at Reynolds numbers Re=40 and 80. On the basis of the numerical results, the time-variation of flow pattern around an elliptic cylinder (locations of stagnation points) was examined, and the effects of angle of attack, Reynolds number, and oscillatory frequency on aerodynamic parameters are discussed.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- October 1975
- Bibcode:
- 1975STIN...7614407O
- Keywords:
-
- Elliptical Cylinders;
- Oscillating Cylinders;
- Viscous Flow;
- Aerodynamic Forces;
- Angle Of Attack;
- Navier-Stokes Equation;
- Reynolds Number;
- Unsteady Aerodynamics;
- Fluid Mechanics and Heat Transfer