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Taking full account of the liquid viscosity, surface tension and other factors, a detailed numerical simulation using VOF method was carried out to study the dynamic behavior of bubbles in still water, and obtained the rising path, deformation process and speed changes. The numerical results were compared with experimental data, and gained good result. It shows the results of this study can provide...
We present a new particle-based method for high viscosity fluid simulation. In the method, a new elastic stress term, which is derived from a modified form of the Hooke's law, is included in the traditional Navier-Stokes equation to simulate the movements of the high viscosity fluids. Benefiting from the Lagrangian nature of Smoothed Particle Hydrodynamics method, large flow deformation can be well...
In this paper, a particle-based simulation method for the immiscible liquid-liquid interaction is proposed. Through establishing an interfacial tension model for multiple liquids and using the essential method of the Smoothed Particle Hydrodynamics, the immiscible effects in the interaction simulation for multiple liquids can be embodied realistically. The experimental results verify the validity...
Flow separation should be controlled to improve performance for its adverseness in flow field. The separation flow in complex three-dimension viscous fluid with rotation effects in hydrodynamic coupling is analyzed. The method of drilling holes in turbine vane is employed to control flow separation in hydrodynamic coupling. The 3D flow field before and after drilling in turbine vanes is simulated...
Through adding stress tensors into the Navier-Stokes equations, in this paper a non-Newtonian fluid simulation model is presented, it profits from the essential method of smoothed particle hydrodynamics, and can exhibit concurrently viscosity, elasticity and plasticity of non-Newtonian fluid, thereby a unified model for simulating non-Newtonian fluid is established. The proposed model are tested under...
Lava flow simulation is a sophisticated and complex phenomenon because a lot of parameters involved. A method employed to simulating lava flow is a Lagrangian approach which sees lava as fluid composed by particle system. Smoothed Particle Hydrodynamics (SPH) method is implemented for interaction between particles which is setting fluid components. Physical parameters obtained by particle based fluid,...
We present several new methods to promote the ship simulator applied to both physically and graphically real-time dynamic rendered ocean. The simulation system is divided into three subsystems, the ships dynamics system, the hydrodynamics system, and two ways coupling between them. We apply hydrodynamic and mechanics to simulate the ocean surface and ship model respectively. In this paper, wave decay...
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