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 M. Ghorbani Shahr-e-Babaki,A. Jamali Keikha,A. Behzad Mehr.Effect of Injection Angle on Artificial Cavitation Using the Design of Experiment Method[J].Journal of Marine Science and Application,2017,(2):173-181.[doi:10.1007/s11804-017-1408-8]
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Effect of Injection Angle on Artificial Cavitation Using the Design of Experiment Method


Effect of Injection Angle on Artificial Cavitation Using the Design of Experiment Method
M. Ghorbani Shahr-e-Babaki1 A. Jamali Keikha1 A. Behzad Mehr2
M. Ghorbani Shahr-e-Babaki1 A. Jamali Keikha1 A. Behzad Mehr2
1. Department of Mechanical Engineering, Chabahar Maritime University, Chabahar 99717-56499, Iran;
2. Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan 98155-987, Iran
injection anglesupercavitationartificial cavitationtorpedodesign of experimentdrag coefficientlift coefficient
Using thesupercavitation phenomenon is necessary to reach high velocities underwater. Supercavitation can be achieved in two ways: natural and artificial. In this article, the simulation of flows around a torpedo was studiednaturally and artificially. The validity of simulation using theoretical and practical data in the natural and artificial phases was evaluated. Results showed that the simulations were consistent with the laboratory results.Theresults in different injection coefficient rates, injection angles, andcavitation numbers were studied. The obtained results showed the importance ofcavitation number, injection rate coefficient, and injection anglein cavity shape. At the final level, determining the performance conditions usingthe Design of Experiment (DOE) method was emphasized, and the performance of cavitation number, injection rate coefficient, and injection anglein drag and lift coefficient was studied. The increasein injection angle in the low injection rate coefficient resulted in a diminished drag coefficient and that in the high injection rate coefficient resulted in an enhanced drag coefficient.


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Received date:2016-10-18;Accepted date:2016-12-1。
Corresponding author:A. JamaliKeikha, Email: A.J.Keikha@cmu.ac.ir
Last Update: 2017-05-09