Experimental study on suppression of vortex street behind perforated square cylinder

• Autorzy: Teimourian A. , Hacışevki H. , Bahrami A.

Identyfikatory

DOI

10.15632/jtam-pl.55.4.1397

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

vortex shedding; flow control; coherent flow structure; perforated square cylinder

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 4
• Strony: 1397--1408
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Teimourian A.

• Aerodynamic Laboratory, Department of Mechanical Engineering, Eastern Mediterranean University, Northern Cyprus, Famagusta, Turkey

autor

Hacışevki H.

• Aerodynamic Laboratory, Department of Mechanical Engineering, Eastern Mediterranean University, Northern Cyprus, Famagusta, Turkey

autor

Bahrami A.

• Aerodynamic Laboratory, Department of Mechanical Engineering, Eastern Mediterranean University, Northern Cyprus, Famagusta, Turkey

Bibliografia

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