Abstract
In this article, electromagnetic control of a turbulent boundary layer (TBL) on a ship hull, without free surface effects, is numerically investigated. This study is conducted on the KVLCC2M ship model hull. For this purpose, a combination of electric and magnetic fields is applied to a region of the boundary layer on the stern to produce wall-parallel Lorentz forces in streamwise direction as body forces in a ship’s stern flow. The governing equation including RANS equations with shear-stress transport (SST) k−ω turbulent model coupled with electric potential equation is numerically solved by using Ansys Fluent codes. Before using for ship’s flow, Fluent electric potential code is validated by simulating magneto-hydro-dynamics (MHD) flow in a rectangular duct and comparing obtained numerical solutions with exact solutions. Accuracy of SST k−ω turbulent model in predicting turbulent flow around a ship is also tested by comparing with available experimental data. The results obtained for ship flow show that by applying streamwise Lorentz forces, flow is accelerated. The results are caused to delay or avoid the flow separation in stern and make uniform flow distribution behind the ship’s hull. It is caused to improve the propeller performance and diminish the total resistance.
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 callMore From: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Disclaimer: 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.
