Unsteady motion of circular cylinder under ice cover

5th All-Russian Conference with International Participation POLAR MECHANICS

地球科学;力学

Kostikov, V.K.^1,2 ; Makarenko, N.I.^1,2 ; Korobkin, A.A.^3

Lavrentyev Institute of Hydrodynamics, Novosibirsk, Russia^1

Novosibirsk State University, Novosibirsk, Russia^2

University of East Anglia, Norwich, United Kingdom^3

关键词: Constant acceleration;    Differential systems;    Elastic properties;    Elastic solids;    Euler's beam theory;    Fluid surface;    Time asymptotic;    Unsteady motion;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/193/1/012036/pdf
DOI  :  10.1088/1755-1315/193/1/012036

学科分类：力学，机械学

来源: IOP

【 摘 要 】

An interaction of the moving submerged circular cylinder with elastic solid ice cover is investigated. The method of reduction to integral-differential system of equations is extended to the case of elastic ice sheet floating on the fluid surface. The elastic properties of the ice are accounted for by the Euler's beam theory. A special iterative procedure is developed to construct small-time asymptotic solution for the cylinder moving with constant acceleration from rest. Elastic-gravity waves in the ice cover are studied in a wide range of parameters.