Is it possible to design a 'Kármán vortex street' behind an object in the numerical wind tunnel of RWIND Simulation?

Answer

The program RWIND Simulation implements a stationary flow calculation for non-compressible gases. The laws and wording used in this way do not change over time. Thus, the calculation outputs a result set without temporal variation.

[1] The effect of a 'Kármán vortex street', in which counter-rotating vortices develop behind a body around which flows, results in a temporal change of the flow effect. Therefore, this fluid-mechanical effect cannot be simulated in RWIND Simulation.


Keywords

Vortex-induced Vibration Chimney Strouhal Vortex shedding frequency

Reference

[1]   DIN 4149: Bauten in deutschen Erdbebengebieten - Lastannahmen, Bemessung und Ausführung üblicher Hochbauten. Beuth Verlag GmbH, Berlin, 04, 2005.

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Compatible Programs RWIND Simulation
RWIND Simulation 1.xx

Stand-Alone Program

Stand-alone program for numerical simulations of wind flow around buildings or any other objects. The generated wind loads acting on these objects can be imported into RFEM / RSTAB programs for static and dynamic analysis.

Price of First License
2,690.00 USD