Topic
Added mass
About: Added mass is a research topic. Over the lifetime, 2849 publications have been published within this topic receiving 47899 citations.
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TL;DR: An overview of prediction methods for motion and deformation of a bubble that is created by boiling at a wall, at times before and after detachment, with a focus on added mass forces in the vicinity of the wall is given in this paper.
Abstract: An overview is given of prediction methods for motion and deformation of a bubble that is created by boiling at a wall, at times before and after detachment, with a focus on added mass forces in the vicinity of the wall. The possibility to apply added mass coefficients derived in potential flows also to flows with vorticity is examined. An introduction to Lagrangian methods is given. Added mass tensors are derived for deforming bubbles at and away from a plane wall. Expressions for induced hydrodynamic lift forces are given, and validation experiments are briefly discussed.
34 citations
TL;DR: In this article, the lattice Boltzmann method combined with a direct-forcing (DF) immersed boundary (IB) method is used to simulate fluid-particle interactions in two-phase particulate flows.
34 citations
TL;DR: In this article, the authors propose an efficient and exact numerical approach to the problem by using the space-time finite element method, and derive characteristic matrices of the discrete element of the string and the Bernoulli-Euler beam that carry the concentrated mass.
34 citations
TL;DR: In this article, a truncated vertical circular cylinder of radius in water of finite depth has been considered, where the incident wave is assumed to be linear with amplitude and the added mass and damping coefficients of the pitch motion of the body, strip theory is applied.
Abstract: In this paper, diffraction problem of a floating vertical circular cylinder is studied. Detailed analytical solution for the boundary value problem to evaluate the wave loads for the cylinder with heave and pitch motions in water of finite depth in the presence of an incident wave, has been presented. Accordingly, diffraction problem for a truncated vertical circular cylinder of radius in water of finite depth has been considered. Incident wave used in this problem, is assumed to be linear with amplitude . In order to calculate the added mass and damping coefficients of the pitch motion of the body, strip theory is applied. For the heave motion, the hydrodynamic coefficients are found by the submerged disk method. Parametric studies of the effects of the wave excitation force on the floating cylinder have been performed for two different cases: 1) constant draft of the cylinder with varying water depth and 2) varying draft of the cylinder with constant water depth.
34 citations
15 Sep 1998-Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing
TL;DR: In this paper, the effect of the tip mass on the nonlinear characteristics of the frequency response is theoretically presented, taking into account the inertia and curvature nonlinearities and a quadratic damping effect of a parametrically excited cantilever beam.
Abstract: For a parametrically excited cantilever beam the effect of the tip mass on the nonlinear characteristics of the frequency-response is theoretically presented.The equation of motion governing the system is formulated by Hamilton's pronciple, taking into account the inertia and curvature nonlinearities and a quadratic damping effect of the beam.Using the method of multiple scales and center manifold theory, the bifurcation points of the frequency-response curve are analyzed.It follows that there are two transcritical bifurcations, and in addition to these bifurcations there are two saddle-node bifurcations, in the cases when the tip mass is relatively light and heavy, respectively.Experiments are also performed and the results show good qualitative agreement with the theoretical ones.
34 citations