TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Calculation of hydroelastic interaction of a rubber plate and wake flow of a truncated cone under subcritical flow regime



Full text article ( in russian )

Year

 
2017

Issue

 
379

Volume

 
1

Pages

 
64-69

Caption

 
Calculation of hydroelastic interaction of a rubber plate and wake flow of a truncated cone under subcritical flow regime

Authors

 
Egorov S.V.

Keywords

 
numerical methods, detached eddies, hydroelastic interaction, subcritical flow regime

Summary

 
Object and purpose of research. Oscillations of a rubber plate at unsteady hydrodynamic load induced by turbulent flow around a solid truncated cone are investigated. The purpose is to model hydroelastic interaction phenomena using modern software.
Subject matter and methods. RANS (Reinolds Average Navier Stokes) equations closed by both semi-empirical Menter’s SST k -ω turbulenc model as well as IDDES (Improved Delayed Detached Eddy Simulation).
Main results. The results of computations by IDDES are found acceptable with 8 % amplitude differences and 5 % frequency differences from experiment in comparison with RANS esimates featuring respective discrepancies of 20 % and 7 %. The discrpancy of results obtained using Menter’s SST turbulence model could be put down to incorrect URANS (Unsteady RANS) resolution of vortex structures shed from the trancated cone.
Conclusion. It is recommended to use vortex resolution approaches for proper modeling of hydroelastic interaction problems.

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

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