An iterative three dimensional Boundary Element Method (BEM) with partially non-linear analysis is implemented to investigate partial cavitating flows around cylindrical bodies at various angles of attack and compared the results to the other numerical solutions. Also, in this article the effect of variation of angle of attack on two various head (conical and blunt-head) is investigated. The results show that the effect of angle of attack on variation of cavity shape at blunt-head cylinder is more considerable. The need for a very short time (less than 10 minutes) to reach the desirable convergence and also proper accuracy in calculating the properties of cavitating flows are considerable advantages of this method. Also, in this research, the effect of the length of a cylindrical body on the cavity length has been investigated. The results confirm that if the length of the body is more than 1.7 times the cavity length, the effects of the negative pressure behind the cylindrical body on the cavity length can be neglected.

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