Çapraz jetlerdeki girdap yapılarının ikinci derece türbülans modeli ile incelenmesi

Bu çalışmada, çok geniş uygulama alanlarına sahip bir akış türü olan çapraz jet akışlarındaki girdap yapıları Reynolds gerilme modeli ile elde edilmiştir. Akış doğası gereği üç-boyutlu ve tam türbülanslı olduğundan sonuçlar üç-boyutlu bir kanal ve boru düşünülerek sağlanmıştır. Sonuçlar gösterilmeden önce söz konusu bu sayısal çalışma literatürdeki mevcut bir çalışma ile mukayese edilmiş ve hız bileşenleri ve türbülans kinetik enerji değişimlerinin deneyle uyum içinde olduğu görülmüştür .

The investigation of vortices by using second order turbulance closure

In this study, the vortex structures seen in a jet in a crossflow phenomena which has numerous applications are obtained by using Reynolds Stress Turbulence Model. The flow is three-dimensional and fully turbulent in nature so a three-dimensional channel and a pipe are considered. The numerical results are compared with an experimental data found in open literature and ît is seen that the velocity components and turbulent kinetic energy variations are in good agreement with the experimental results.

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