Experimental study of turbulence intensity influence for turbulent cross flow in staggered tube bundle using grooved cylinder
Laboratoire d’aérohydrodynamique naval Département de Génie Maritime Mechanical Engineering Faculty USTO MB Oran, Algeria
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Published online: 23 March 2016
The present work is an experimental investigation on the effect of the turbulence intensity variation in a staggered tube bundle equipped with grooves at 90° and 270°.The experiments were carried out in a subsonic wind tunnel. Three Reynolds numbers and three turbulence levels were tested. The pressure distributions and drag forces were measured. Surface visualizations were also performed. The obtained results show that the turbulence intensity for different Reynolds number has an influence on the reduction of the drag coefficient.
© Owned by the authors, published by EDP Sciences, 2016
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