نتایج جستجو برای: hydrodynamics
تعداد نتایج: 25793 فیلتر نتایج به سال:
The hydrodynamics of collisions and mergers of main-sequence stars is discussed in the light of recent 3-D calculations using the smoothed particle hydrodynamics (SPH) method. Theoretical models for the formation of blue stragglers are reviewed in the context of recent comparisons between the observed properties of blue stragglers in dense globular clusters and the predictions of those models.
#National Centre for Macromolecular Hydrodynamics, Department of Biochemistry, Leicester University, University Road, Leicester, LEI1 7RH, UK. +MRC Cellular Immunology Unit, Sir William Dunn School of pathology, University of Oxford, Oxford, OX I 3RE, UK. National Centre for Macromolecular Hydrodynamics, Department of Applied Biochemistry and Food Science, Nottingham University, Sutton Boningto...
First order quark hadron phase transition is considered in scaling hydrodynamics including the Csernai-Kapusta model of nucleation of hadronic bubbles leading to supercooling. The effect of viscosity on the entropy production is studied in ideal as well as in viscous hydrodynamics with and without supercooling. It is found that the excess entropy produced due to supercooling depends weakly on v...
In order to reduce wear in gudgeon pin, bush and piston boss lubrication is done. Oil used in national engine species was 10W40 with dynamic viscosity 5.5 mPa.s at 140 °C (the working temperature). In order to complete investigation the oil film hydrodynamics analysis in small end of connecting rod, a real full model engine with four cylinders has been simulated by AVL EXCITE5.1 software. In...
We describe a lattice Boltzmann algorithm to simulate liquid crystal hydrodynamics. The equations of motion are written in terms of a tensor order parameter. This allows both the isotropic and the nematic phases to be considered. Backflow effects and the hydrodynamics of topological defects are naturally included in the simulations, as are non-Newtonian flow properties such as shear thinning an...
In the treatments of diffusion-limited association of suspended nanoparticles, their diffusion coefficients are usually considered to be constant and equal to those given by conventional hydrodynamics for diffusion of single nanoparticles. In reality, according to hydrodynamics, these coefficients depend, however, on the distance between nanoparticles. I show how this dependence can influence t...
Effect of interparticle force on the hydrodynamics of gas-solid fluidized beds was investigated using the combined method of computational fluid dynamics and discrete element method (CFD-DEM). The cohesive force between particles was considered to follow the van der Waals equation form. The model was validated by experimental results from literature in terms of bed voidage distribution and Eule...
The main advantage of a fluidized bed is its capability in excellent gas-fuel mixing. However, due to the lacks of gas radial momentum, its lateral mixing of gas-solid is not adequate. Therefore, this research is focused on fluidized bed hydrodynamics enhancement using the modified gas distributor plate design. For getting an optimum fluidized bed hydrodynamics prediction, three different class...
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