TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Tail shape determination for foil profile



Full text article ( in russian)

Year

 
2022

Issue

 
399

Volume

 
1

Pages

 
43-48

Caption

 
Tail shape determination for foil profile

Authors

 
Bagrintsev V., Marinich N.

Keywords

 
profile, boundary layer separation, hydrodynamic performance, edge noise

DOI

 
10.24937/2542-2324-2022-1-399-43-48

Summary

 
Object and purpose of research. This paper discusses mitigation of vortex shedding from the trailing edge of foil profile and, accordingly, of alternating-sign unsteady forces through modification of foil geometry.
Subject matter and methods. Theoretical calculations for perfect fluid, numerical simulation in viscous incompressible fluid, cavitation tunnel tests of conventional thruster-type foils and the foils with modified profile.
Main results. The study yielded hydrodynamic parameters (lift and resistance coefficients) for the profiles under investigation. The tests also yielded cavitation data. As a result, it was possible to compare lift and resistance coefficients of conventional and modified profiles as per theoretical estimates and test data.
Conclusion. Analysis of the changes in hydrodynamic parameters has shown that the method suggested by the authors is quite efficient and it is practicable to perform further tests with propeller.

Rubrics

 
Naval architecture

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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