- Tytuł:
- Experimental study on suppression of vortex street behind perforated square cylinder
- Autorzy:
-
Teimourian, A.
Hacışevki, H.
Bahrami, A. - Powiązania:
- https://bibliotekanauki.pl/articles/279942.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
vortex shedding
flow control
coherent flow structure
perforated square cylinder - Opis:
- In this study, the effects of entrainment of a fluid through a perforated surface on suppression of the vortex street behind a perforated square cylinder have been studied experimentally. The wake region has been investigated in terms of coherent flow structure, time averaged properties and effectiveness of different perforations. The quantitative measurements revealed that the perforated surfaces are only effective within a width interval of y/D = ±1.0. It has been observed that in the near wake region up to approximately 1.5D downstream the wake, the shedding phenomenon has been suppressed significantly. It has been also demonstrated that velocity profiles and flow structure have been affected by different perforated surfaces and, as a result, coherent structures have been diminished considerably.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1397-1408
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł