منابع مشابه
Velocity relaxation of a particle in a confined compressible fluid.
The velocity relaxation of an impulsively forced spherical particle in a fluid confined by two parallel plane walls is studied using a direct numerical simulation approach. During the relaxation process, the momentum of the particle is transmitted in the ambient fluid by viscous diffusion and sound wave propagation, and the fluid flow accompanied by each mechanism has a different character and ...
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We use inviscid simulations to study falling flexible sheets in the two-parameter space of sheet density and bending rigidity. The basic behavior is a repeated series of accelerations to a critical speed at which the sheet flexes and rapidly decelerates, shedding large vortices. The maximum and average speeds of the sheet are closely related to the critical flutter speed. The sheet trajectories...
متن کاملeffect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولSimulation of particle mixing in turbulent channel flow due to intrinsic fluid velocity fluctuation.
We combine a discrete-element-method simulation with a stochastic process to model the movement of spherical particles in a turbulent channel flow. With this model we investigate the mixing properties of two species of particles flowing through the channel. We find a linear increase of the mixing zone with the length of the pipe. Flows at different Reynolds number are studied. Below a critical ...
متن کاملEvaluation using an LES Database of Constitutive Relations for Fluid-Particle Velocity Correlations in Fully-Developed Gas-Particle Channel Flows
Models of the fluid-particle velocity correlation are evaluated in fully-developed particle-laden turbulent channel flow. The database for the model evaluations is generated using Large-Eddy Simulation (LES) of the carrier phase flow combined with Discrete Particle Simulation (DPS) for the dispersed phase. The current focus is on gas-solid flows for which the particle equation of motion include...
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ژورنال
عنوان ژورنال: Transactions of the Japan Society of Mechanical Engineers
سال: 1942
ISSN: 0029-0270,2185-9485
DOI: 10.1299/kikai1938.8.32-3_21