Details of the Computed Flowfield Over a Circular Cylinder at Reynolds Number 1200

[+] Author and Article Information
C. L. Rumsey

Analytical Methods Branch, Low-Speed Aerodynamics Division, NASA Langley Research Center, Hampton, VA 23665-5225

J. Fluids Eng 110(4), 446-452 (Dec 01, 1988) (7 pages) doi:10.1115/1.3243576 History: Received November 17, 1987; Online October 26, 2009


The application of an upwind-biased implicit approximate factorization Navier-Stokes algorithm to the unsteady impulsive start-up flow over a circular cylinder at Reynolds number 1200 is described. The complete form of the compressible Navier-Stokes equations is used, and the algorithm is second-order accurate in both space and time. The drag on the cylinder is computed for early times in the start-up flow. The value of the local maximum drag as well as the time at which it occurs are predicted and compared to another computational result and experiment. The development with time of the shape and size of the separated vortical flow region is computed, as well as the time-variation of several boundary layer parameters and profile shapes. Computations, in general, show excellent agreement with experiment, although the present method predicts a more rapid onset of reversed flow on the cylinder than evidenced in experiment. The effect of grid density on the development of the unsteady flow is also shown.

Copyright © 1988 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In