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A Novel Piezoelectric Valveless Micropump with an Integrated Diffuser/Nozzle Bulge Piece Design Tsung-Hsing CHAN 1, Chiang-Ho CHENG1, a, An-Shik YANG2, b and Li-Yu TSENG2 1 Department of Mechanical and Automation Engineering, Da Yeh University, Chang Hua 515, Taiwan 2 Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 106, Taiwan a chcheng@mail.dyu.edu.tw, b asyang@ntut.edu.tw Keywords: Valveless micropump, Piezoelectric actuator, CFD simulation, MEMS.
In the analysis, the computational fluid dynamics (CFD) software ACE+® was utilized to examine the time-varying flow phenomenon in a full-scale PZT micropump throughout an actuation cycle.
Numerical simulations were also conducted to study the time-varying flowfield encountered inside the micropump.
Theoretical Model Simulations were conducted using the ESI-CFD ACE+ ® computer software to explore the internal flowfield in a piezoelectric valveless micropump.
Results and discussion In simulations, Fig. 3 shows the numerical grids of a full-scale piezoelectrically valveless micropump.

(3) The simulation and prediction of starch gelatinization process.
Computational fluid dynamics (CFD) is used to model the entire bread baking process [18-20].
Designing process controller for a continuous bread baking process based on CFD modelling.
Simulation of starch gelatinisation during baking in a travelling-tray oven by integrating a three-dimensional CFD model with a kinetic model.
Computational fluid dynamics (CFD) modeling for bread baking process-a review.

The Ansys Fluent v.6.2 software was used to solve Reynold Average Navier-Stokes (RANS) equations, and Icem CFD as a mesh generator.
The computational fluid dynamics, as known as the CFD [1,2] has become a practical tool in the simulation of hydrodynamics of marine devices, especially propeller.
The CFD study which focused on the effect of the size of computational domain had been carried out by Zadravec, et.al [4].
The local pressure minima in Fig.4 were obtained at the simulation test for the propeller-to-rudder interaction.
Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance.

STUDY ON COUPLED CONDUCTION AND CONVECTION HEAT TRANSFER BASED ON INTERNAL HEAT SOURCE YONGAN LI，YANAN GAO，MING WANG，XUELAI LIU School of Thermal Energy Engineering,Shandong Jianzhu University Jinan, 250101,China KEY WORDS:Pipe, internal heat source, conduction and convection, liquid-solid coupled, numerical simulation Abstract:A computational fluid dynamics (CFD) model is proposed to simulate numerically conjugated heat transfer process of fluid washing out solid with evenly internal heat source in the pipe.
Based on numerical simulation, the varying regularity of Nusselt number between fluid and solid wall surface is obtained and analyzed.
The SIMPLE algorithm is taken in the numerical simulation process of steady coupled heat transfer.
Therefore, in the numerical simulation process by using CFD software, the setting of physical parameters, the selection of solution method and the determining of the time step should be paid special attention.
The analysis of the calculation result When doing numerical simulation and calculation, the CFD software FLUENT was used in this paper.

For numerical investigation, commercial available computational fluid dynamics CFD software GAMBIT and FLUENT are used.
The aerodynamic characteristics of VVAWT can be improved by numerical simulation using Computational Fluid Dynamic (CFD).
Simulation was done for three geometries: the Classical Savonius design, Bach-type one and Elliptical rotor.
The numerical simulations were carried out for fixed blade position representing its angular positions of, 0°, 30º, 45º, 60°, and 90º.
Sankar, “Steady and rotating computational fluid dynamics simulations of a novel vertical axis wind turbine for small-scale power generation”.

The HA particle velocity in the cold spraying process is investigated numerically using a computational fluid dynamics (CFD) program, FLUENT.
As the first stage of the work revealing the formation of the HA coatings by cold spraying process, this paper focuses on the identification of the HA particle acceleration behavior through numerical simulation by a computational fluid dynamics (CFD) program FLUENT.
Numerical Simulation and Discussion Taguchi Design of Simulation Conditions.
Dt×De, is also considered in the simulation.
Analysis of Variance for the Simulation Results.

The simulation results were in good agreement with the experiment data.
Computational fluid dynamics (CFD) is now widely used to solve problems involving fluid flow.
The simulation results were discussed and compared with experiment data.
Simulation of free surface flow over spillway.
Numerical simulation study of double-bend spillway[J].

A coupled CFD/6 DOF is designed to compute the orientation and trajectory of the airdrop model.
Fig.1 also shows the CFD mesh on the airdrop model surface used in this numerical simulition.
Fig.4 shows the flow chart of the CFD/6 DOF coupling.
A coupled CFD/6 DOF is designed to compute the orientation and trajectory of the airdrop model.
Simulation the Flows About Cargo Containers Used During Parachute Airdrop Operations .

Numerical Methods Multiphase Modeling The commercial CFD software FLUENT is used to model the gas-liquid two-phase flow regimes.
Several runs of simulation had been performed by varying the cells density.
Simulation of Oil-Gasoil Vapour Flow This section reported the 3D simulations of slug transition for two-phase oil-gasoil vapour flow in horizontal pipe.
Holdo, "Modelling two-phase flows using CFD," Applied Energy, vol. 53, pp. 299-314, 1996
Nasif, "Simulation of two phase oil-gas flow in pipeline," APRN Jour.

Abstract.Effect of feed flow rate on velocity field of evaporating liquid film in a wiped film molecular distillatory was studied with a computational fluid dynamics (CFD) method.
Simulations were carried out in rotating coordinate system.
In our previous study[1], the RNG and Realizable k-εturbulent models treating near-wall turbulent flow were compared by means of CFD simulation.
It will be a new method to study flow of evaporating liquid film in WFMD by means of CFD simulation.
Wang, CFD simulation of short-path distillation and its application to purification of natural products, M S.