Numerical Analysis of Periodic Pulsation Interactions of External Flow on Cylinders Aerodynamics and Heat-Exchange

Safety in Aviation and Space Technology: The Third World Congress 2008
Gints Filipsons, Viktors Gopejenko, Nataļja Sidenko, Valērijs Ušakovs

The computer analysis results of the aerodynamic characteristics of the cylinder in the non-stationary gaze flow with periodic low-frequency pulsation with respect to the average velocity at subcritical Reynolds numbers are presented. It is shown that periodic pulsations of the flow velocitys significantly effects on the frequency of the vortex separations and the form of the Karman trail behind the cylinder, on the pulsation frequency of the aerodynamic coefficients, heat-exchange coefficient, their average and amplitude values.

Atslēgas vārdi
computer analysis, pulsing flow, aerodynamic parameters, Drag coefficient, Lift coefficient

Filipsons, G., Gopejenko, V., Sidenko, N., Ušakovs, V. Numerical Analysis of Periodic Pulsation Interactions of External Flow on Cylinders Aerodynamics and Heat-Exchange. No: Safety in Aviation and Space Technology: The Third World Congress, Ukraina, Kiev, 22.-24. septembris, 2008. Kiev: International Civilaviation Organization Nationalacademy of Sciences of Ukraine Ministry of Education and Science of Ukraine Nationalaviation University, 2008, 58.-64.lpp.

Publikācijas valoda
English (en)