Articles of The Transactions of KSRC

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.
Rubrics	Naval architecture