Abstract
In the present study, a post-swirl pump jet system was designed for an axisymmetric underwater vehicle. In order to evaluate the design procedure, several experiments such as bollard pull, self-propulsion point (SPP) and bare hull resistance tests were conducted in a towing tank on a full-scale model. Further conditions were performed numerically at higher velocities to determine the characteristic chart and flow pattern analysis. Both open-water and behind-hull conditions were simulated. The Realizable k-ε turbulence model and the Mixing-Plane Method (MPM) were utilized in a periodic domain for numerical simulations. The obtained results showed that the variations of hydrodynamic coefficients, especially the torque coefficient, against advance coefficient were much smaller than conventional propellers. Moreover, the net imbalance roll moment was quite small in all conditions suggestive of accurate stator design. The stator also created additional thrust and hence increased the overall performance up to 82 percent in the behind-hull condition.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
