Search results

Merati et al. [5] predicted the turbulence flow field in a seal chamber by using FLUENT, a commercial software package for computational fluid dynamic (CFD) analysis.
Numerical simulations The N-S equations and the energy equations are coupled through the viscosity – a nonlinear function given in Eqs. (11).
Validation According to the numerical simulation results, the structures and operation parameters of the mechanical seal are optimized, and the optimizations are verified by the running tests: the mechanical seal is seted up in the equipment, running 30min, velocity 60000rpm, medium fluid water.
According to the simulation results, the structures and parameters of mechanical seal are improved, and the validity of the optimization is proved by test.
Numerical simulations of the flow field around the rings of mechanical seals.

Liu Zhaomiao used CFD simulations to study on the influence of blood flow on thrombosis in Y-shape coronary artery [11].
Numerical modeling of simulated blood flow in idealized composite arterial coronary grafts: Steady state simulations [J].
Communications in Nonlinear Science and Numerical Simulation, 2008, Vol. 13: 1615-1626
Three-Dimensional Numerical Simulations of flow through a Stenosed Coronary Bypass., journal of biomechanics. 2001, Vol. 34: 1049-1064 [10] Quarteroni.

Many works have been done [4][5][6][7] and simulations have been done [8][9][10][11] in finding out the ways that a swirl air motion can be created.
[8] Hans Seifert, “A mathematical model for simulation of processes in an internal combustion engine,” 1979, Acta Astronautica Vol. 6 [9] Mont Hubbard, “Dynamic Computer Simulation of An Engine Intake and Carburation System”, [10] Maria Dybeck, “CFD-procedures for Air Induction Systems”, Master of Science in Engineering Technology Space Engineering [11] Ramin Gilani “Engine Simulation Model for a Formula SAE Race Car”, Applied Design, Development, Correlation and Optimization

Therefore, this paper summarizes results of previous studies, using CFD numerical simulation to make non-steady state characteristics study on reactor coolant pumps transient variation of blade load, radial force and axial force of impellers, guide vanes and the volute in the transition process from design conditions to 0.7Q small-flow condition and design conditions to 1.2Q condition, aiming at providing a basic reference for structure, hydraulic and process design of reactor coolant pumps.
Numerical Simulation 2.1 Calculating Model and Mesh Generation In this paper the calculation model is the improved AP1000 reactor coolant pump and conveying medium is clear water.
Steady flow convergence is the unsteady simulation initial condition.
Simulations and field tests of a reactor coolant pump emergency start-up by means of remote gas units [J], Transactions on Energy Conversion, 1992, 7( 4):691-697
Analysis and Numeric Simulation of Off-design Flow Field in Centrifugal Pump [J].

Additionally, numerical simulation emerges as an essential tool for understanding and optimizing these processes.
In this context, numerical simulation emerges as an essential tool, enabling a detailed analysis of heating during microwave drying of coffee beans [16,17].
This difference can be explained as the numerical simulation does not consider the mass transfer and moisture variation during the process.
Catuai) using a hexagonal microwave dryer designed by numerical simulations, J.
Yeretzian, Modeling and Validation of Heat and Mass Transfer in Individual Coffee Beans during the Coffee Roasting Process Using Computational Fluid Dynamics (CFD), Chimia. 67 (2013) 291-294

Abstract：The current flow and pressure drop of ER valve which is a new type power control valve could be adjusted by the electric field signal directly .In this paper, the fluid power control performance of concentric cylindrical ER valve and parallel plate-type ER valve based on ER principal is comparative studied .First power control equation has been analysed, and then flow simulation of internal flow field of ER valve has been taken based on FLUENT software.
Comparartion of the simulation results The effects of the electric flied intensity on the flow rate of the ER valve Utilizing the pre-processing software GAMBIT of the FLUENT to build a 3D model and meshing for the internal flow field of the two type of ER valves .because of.
Actually, the internal flow field of the ER valve is complex 3 d fluid movement, during the simulation processing, assumptions and setups have been made for the ER valve as follow: 1.Assuming that the ER fluid is uncompressionable and accords with the non-newtonian fluid with HB parameters; 2 Ignoring the effects of temperature on the fluid flied and taking the flow state as a laminar.
[8] S.M.chen,W.A.bullough CFD study of the flow in a radial cluth with a real electrorheological fluid.journal of physics:conference series,2009,149(4)1742-1751

., P.O.B. 49377, Petach-Ticva, Israel aradune@ariel.ac.il, balex@innodraw.com, cassous@ariel.ac.il, dzinigrad@ariel.ac.il Keywords: Mathematical modeling; simulation convection; diffusion; desulfurization; metal-slag interface.
Shultz: Simulation of thermodynamic properties of slag melts, Proceedings of the 4th Molten Slags and Fluxes(International Conference, Sendai,Japan1992), p. 120 [4] M.
Conf. on CFD in the Miner.& Process Ind.

Simulation and Analysis of a Micro-fluidics Cooling System X.W.
Using FLOTRAN CFD of ANSYS, the initial velocity and temperature constraints are applied to the inlet of the high temperature area and the relative pressure applied to the outlet of the low temperature area is set as zero.
Simulation and analysis Using ANSYS FLOTRAN and the FEM model, the micro cooling system is simulated, when the channel width and depth is 200 and 100 micrometers respectively.

A dynamic simulation of the steel frame subjected to a blast load was analyzed under such a temperature field.
This equation is got from CFD model (also referred to as field models) by Prof.

Monitoring data from all the sites were used to set initial and boundary conditions for the numerical simulations, and validate the numerical model.
A wide range of practical applications based on FLOW-3D had verified its feasibility and simulation accuracy.
In fact, it was the only commercially available CFD program that fully implements Hirt and Nichols’ (1981) volume-of-fluid (VOF) method for the computation of free-surface flows [18-20].
The horizontal velocity field simulation results in figure 7 displayed the same situation as those in figure 6.
Horizontal velocity field simulation results for the estuary of Xiangxi River in May. 16, 2010 (Positive values indicate flow into the Xiangxi River and negative values indicate flow out of the Xiangxi River.).