Experimental Investigation of the Sail Position of a Submarine on the Downstream Flow Field

Document Type : Original Article

Authors

• Shokrolaah Mohammad Beigi ¹
• Mojtaba Dehghan Manshadi ¹
• ali Saeidnezhad ²
• Ali Akbar Dehghan ²

¹ Malik Ashtar University of Isfahan

² Yazd University

10.22067/fum-mech.v27i1.35297

Abstract

The effect of sail position on the downstream flow field of the sail is investigated in the wind tunnel. A five-hole pressure probe is used to measure the 3D flow field. The investigation of the five-hole results shows that the five-hole measurements can determine the horseshoe vortex structure. Also, the results show that the horseshoe vortexes become smaller by forward moving of the sail on the body to the nose. Therefore, if the sail is mounted on the hull near the bow, the performance of the impeller increases and nose level decreases.

Keywords

• Horseshoe vortex
• Submarine model
• Sail
• wind tunnel
• Five-hole probe

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