Unsteady Lift and Drag Forces Acting on the Elliptic Cylinder

Kim, Moon-Sang; Park, Hyung Wook

doi:10.1007/bf02916210

Cited by 10 publications

(1 citation statement)

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“…They showed an unusual phenomenon of negative lift occurring shortly after the start of motion. Kim and Park [13] studied numerically to figure out the effects of elliptic cylinder thickness (thickness to chord ratios of 0.2, 0.4, and 0.6), angle of attack (10°, 20°, and 30°), and Reynolds number (400 and 600) on the unsteady lift and drag forces exerted on the elliptic cylinder. Through this study, they observed that the elliptic cylinder thickness, angle of attack, and Reynolds number are very important parameters for determining the unsteady characteristics of lift and drag forces.…”

Section: Introductionmentioning

confidence: 99%

Unsteady viscous flows past blunt bodies at moderate Reynolds numbers

2008

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Unsteady viscous flows past blunt bodies are simulated at the Reynolds numbers of 100, 200, 300, and 400. This research focuses on understanding the effects of the Reynolds numbers and blunt body shapes on the unsteady lift and drag forces. The incompressible Navier-Stokes flow solver, which employs the SIMPLER method in the twodimensional body-intrinsic orthogonal curvilinear coordinate system, is verified by comparing the present numerical results with currently available experimental and numerical data. In conclusion, it is observed that the body shapes and the Reynolds numbers affect significantly the frequencies of the force oscillations as well as the mean values and the amplitudes of the drag and lift force oscillations.

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Section: Introductionmentioning

confidence: 99%