Multi-domain Boundary Element Method in Nonlinear Liquid Sloshing Analysis for Fuel Tanks
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Дата
2016
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
NTU "KhPI"
Анотація
The boundary element method is used for analysis of the non-linear sloshing response of liquid in cylindrical
baffled and un-baffled fuel tanks. The liquid is supposed to be an ideal and incompressible one and its flow
introduced by the vibrations of a shell is irrotational. The potential formulation is considered for the liquid
domain. In this paper the free vibration analysis of the liquid sloshing in the cylindrical shell is carried out in
non-linear statement. The non-linear Cauchy-Lagrange integral is involved in the problem statement and the
boundary conditions were assigned on the free surface changing in time. Here we use reduced boundary
element method. The problem was solved using the single-domain and multi-domain reduced boundary element
methods. The fourth-order Runge-Kutta method is employed to advance the solution in the time domain. The
rigid baffled tanks with different annular orifices were considered. The time-dependencies of the free surface
flood level were obtained numerically for vibrations of the fluid-filled tanks with and without baffles in linear
and non-linear statements.
Опис
Ключові слова
nonlinear sloshing, baffles, boundary element method, single and multi-domain approach, singular integral equations
Бібліографічний опис
Strelnikova E. A. Multi-domain Boundary Element Method in Nonlinear Liquid Sloshing Analysis for Fuel Tanks / E. A. Strelnikova, V. V. Naumemko, V. I. Gnitko // Nonlinear Dynamics–2016 (ND-KhPI2016) : proceedings of 5th International Conference, dedicated to the 90th anniversary of Academician V. L. Rvachev, September 27-30, 2016 = Нелінійна динаміка–2016 : тези доп. 5-ї Міжнар. конф., 27-30 вересня 2016 р. – Kharkov : NTU "KhPI", 2016. – P. 390-398.