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Zhuopu Wang, Kairui Yu and Yuanzhe Liu
The unsteady combustion of solid propellants under oscillating environments is the key to understanding the combustion instability inside solid rocket motors. The discontinuous Galerkin?finite element method (DG-FEM) is introduced to provide an efficient...
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Zereng Chen, Qinghe Zhang, Guoquan Ran and Yang Nie
A wetting and drying treatment for a three-dimensional discontinuous Galerkin hydrodynamic model without mode splitting (external and internal modes) was developed. In this approach, computing elements are classified into wet, dry, and semidry elements, ...
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Jiaming Xiong, Song Sang, Xiao Shi and Chaojie Gan
This study investigates the vertical-type submerged floating tunnel with anchor cables. Based on the characteristics of the anchor cables, the anchor cables are simplified as a nonlinear beam model with hinged ends. Disregarding the axial displacement of...
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Yunbo Zhang, Kun Huang and Wei Xu
A common strategy for studying the nonlinear vibrations of beams is to discretize the nonlinear partial differential equation into a nonlinear ordinary differential equation or equations through the Galerkin method. Then, the oscillations of beams are ex...
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Huixuan Han, Yishuo Guo and Ruili Huo
The free transverse vibration of a surface-piercing, vertical cylinder partially submerged in water was studied. The cylinder had an arbitrary non-circular, but symmetric, cross-section in the vibration direction. The water was assumed to be an incompres...
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Albert G. Prinn
Accurate predictions of the wave-dominated region of an acoustic field in a room can be generated using wave-based computational methods. One such method is the finite element method (FEM). With presently available computing power and advanced numerical ...
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Stan Proskurov, Markus Lummer, Jan Werner Delfs, Roland Ewert, Jochen Kirz, Martin Plohr and Robert Jaron
Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR projec...
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Jing Ling, Hongying Wang and Hongzhong Mou
This study focuses on the axial compression on the part boundary of the circular shaft (Brazilian test). The problem is solved by the virtual boundary meshless Galerkin method, whose discrete equation is nonsingular and symmetrical, and has the advantage...
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Weicheng Pei, Yuyan Jiang and Shu Li
In aerospace engineering, high-order computational fluid dynamics (CFD) solvers suitable for three-dimensional unstructured meshes are less developed than expected. The Runge?Kutta discontinuous Galerkin (RKDG) finite element method with compact weighted...
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Ondrej Bublík,Ale? Pecka,Jan Vimmr
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