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Physic-based fluid simulation is used extensively nowadays; however the traditional serial algorithm can't satisfy the real-time requirement due to its complexity and computeintensive. The development of modern GPU makes this possible. In this paper, a Smoothed Particle Hydrodynamics (SPH) method for incompressible fluid was implemented using CUDA on GPU. Since the algorithm was executed on the GPU...
Small scale multiphase fluid motion is fundamentally important for applications in environmental, biological and chemical engineering as well as many other areas. Due to the existence of complex geometries, arbitrarily moving interfaces, and large density and viscosity contrast, simulation of small scale multiphase flows has been a formidable task for traditional grid-based numerical methods. This...
We present a lumped-parameter dynamic model for a planar poly(dimethylsiloxane) (PDMS) micropump using in-contact, virtually zero-leakage check valves to provide critical insights into the dynamic characteristics of the planar micropump operation. The model features a single-plane microfluidic chamber sandwiched between two check valves, which allows for reliable operation and easy system integration...
In this paper, a multiscale fluid model based on Navier-Stokes is proposed, and the operator splitting method is employed to split the model into advection term, diffusion term, external force term and projection term. Every step is stable, so the whole process is also stable. And at the same time, ??vorticity confinement?? is used to enhance the real-time simulation. Compared with the traditional...
This essay discusses in detail the instance of micro-PVC exposed in gravitational field-flow fractionation. Based on this situation, the changing regulation of balance velocity and retention ratio with velocity of the fluid has simulated. Micro-PVC has been separated by gravitational field-flow fractionation. By comparing the result of experimentation to that of simulation, deficiencies on the theory...
Centrifugal pump is one of the most important energy conversion device widely used in almost all industrial fields. Improving operating performance of pump is of great significance for energy saving and safety in production. The asymmetrical distribution of flow field and radial force that will cause flow-induced vibrations which reduce operating stability and reliability of centrifugal pump were...
Smooth Particle Hydrodynamics (SPH) is an accurate method in fluid numerical simulation. In this paper we introduce a calculating algorithm based on the SPH, and propose an interactive method to simulate fluids with free surfaces. This method is completely consistent with the dynamic behavior of a viscous fluid, namely described by Navier-Stokes equations. In addition, for online simulation, we adopt...
This paper describes about research on fluid analysis simulator for elastic oscillating fin of biomimetic underwater robots. Authors has been researching biomimetic underwater vehicle such as flapping wing type. In such system, new concept of fluid analysis simulator is required because of the unique fluid characteristics of elastic oscillating fin. First of all, this paper shows basic characteristics...
In this paper, we present a physics-based computer graphics technique for simulating and rendering foams and bubbles floating on the calm surface of fluid. We integrate rendering of bubble and foam, fluid simulation and the interactions between them to create the appearance of realistic liquids. As a whole, the animation of bubble that floats on the surface of fluid becomes possible by the technique...
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