Paper Conference

Proceedings of BauSim Conference 2006: 1st Conference of IBPSA-Germany and Austria


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Strömungsuntersuchung in einem Dralldiffusor

E. Casartelli, T. Staubli

Abstract: In room and industrial ventilations, vortex-diffusers are used to evenly distribute the incoming fresh air. Thereby maximum flow velocities should not exceed empirical values which define comfort standards for ventilation. Vortex diffusers distribute the fresh air along the ceiling of the room, avoiding the problem of disturbing direct air-jets. Abb. 1: Geometrie des untersuchten Drallauslasses/ Geometry of the investigated diffuser At present the vortex diffusers are developed by trial and error techniques. In this study the outflow of a vortex diffuser has been visualized and investigated experimentally by PIV and numerically with CFD. The validation phase shows that CFD can be used as devolpment platform for the virtual test stand.
Pages: 14 - 14

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