كتاب
Experimental investigation of flow fields in a square channel roughened with various ribs on one wall
| العنوان: | Experimental investigation of flow fields in a square channel roughened with various ribs on one wall |
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| المؤلفون: | Wang, L, Burgers, S.S., Verbeek, M.M.J.F., Sundén, Bengt |
| المصدر: | (2006) ISSN: 0888-8116 |
| بيانات النشر: | American Society Of Mechanical Engineers (ASME) |
| سنة النشر: | 2006 |
| المجموعة: | Lund University Publications (LUP) |
| مصطلحات موضوعية: | Energy Engineering, Velocity fluctuations, Momentum exchange, Square channel, Pitch-to-height ratio |
| الوصف: | The present work studies the separated flow in a square channel with ribs on one wall by using the PIV method. In this study, the spacing between ribs is kept constant and the heights of rib are varied in order to investigate the influence of the pitch-to-height ratio, P/e on the flow structures. Depending on the various pitch ratios, the enclosure between ribs can be regarded as closed or open cavity. Results are included for mean velocity, streamlines, skin-friction coefficient, anisotropy parameter, turbulent kinetic energy production and two-point correlation. It is found that the separated shear layer in the closed cavity has strong momentum exchange with the mainstream. By contrast, the fluid contained in the open cavity is self-sustained and the outside streamlines are almost parallel to the bottom wall. Moreover, for the open cavity, the velocity fluctuations become vigorous as the flow reattaches directly on the trailing edge. Copyright |
| نوع الوثيقة: | book part conference object |
| اللغة: | English |
| ردمك: | 978-0-7918-3790-0 0-7918-3790-4 |
| العلاقة: | https://lup.lub.lu.se/record/617035Test; scopus:84920633776 |
| الإتاحة: | https://lup.lub.lu.se/record/617035Test |
| رقم الانضمام: | edsbas.85EBB16 |
| قاعدة البيانات: | BASE |
| ردمك: | 9780791837900 0791837904 |
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