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Based on the mixture theory, to clarify the mechanism of macro segregation of blooms, a mathematical model of macro segregation coupled with a heat transfer equation and a solute balance equation is developed. The software is built with VC++ as the program language to predict the process, which can simulate the temperature filed, the solute concentration in the central portion and so on. The semi-analytical...
The paper uses the method of numerical simulation for the environmental pollution problem of the ocean dumps from offshore industries; it adopts ECOM-3D Water Quality Model; and it has carried out the simulation research on those projects' influence on the environment of sea area, and confirmed the influence range of sewage point's diffusion. The research result is helpful to the implementation of...
This paper studies the influence of intake initial conditions on high density - low temperature diesel performance with simulation analysis of software FIRE and orthogonal test method. We perform simulation on the 4100 diesel, and the result shows that, the most notable influence on the comprehensive performance of diesel is EGR, followed by the intake pressure, and the third is the intake temperature...
Numerical simulation of the internal flow field in a new wet dust removal device for quick lime slaking is studied by the software FLUENT, with κ-ε turbulence model and SIMPLE algorithm. The results show that it is favorable for the dust removal to adopt tangential outlet, which can retard the escape of gas flow from the outlet, the best gas velocity is 15m/s, besides, when the number of nozzles is...
Based on the Computer Simulation Technology (CST) software, numerical simulations are carried out for a higher-order multi-modes operation of a coaxial Bragg structure at a frequency of 100 GHz. Results confirm that the band-gap overlap of the spurious modes with the operating mode can be efficiently separated by setting the phase difference between the outer-conductor and inner-rod corrugations to...
With the non-hydrostatic mesoscale meteorological model (MM5), the maximum intensity of blood-causing torrential rain occurred in the Leizhou Peninsula from Aug. 8 to 11 in 2007 is simulated. The result shows that the simulated rainfall intensity has a good agreement with the observation, but the simulated appearance of heavy precipitation is slightly later and the rainfall of the precipitation center...
By using the coupling method of FEM and SPH, constitutive behavior of material in the metal cutting process was simulated and cutting mechanisms were analyzed. The simulation results show that the cutting process is a plastic deformation process in which cutting layer material produces shearing slip due to the extrusion of cutting tool; the extrusion and friction from cutting edge result in cold plastic...
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