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Numerical Research of Deposits Formation and Influence on the Heat Transfer Process Lin MU1, a, Hongchao YIN1,b 1 School of Energy and Power Engineering, Dalian University of Technology, 116023, Dalian, China awwt650420@sina.com.cn, bhcyin@dlut.edu.cn Keywords: Ash Deposition, Deposits Growth, Heat Transfer, CFD.
In addition, deposition rate, deposits distribution and variations of deposits with the running time were also predicted by numerical simulation method.
The gas-solid two phase Eulerian-Lagrangian model based on Computational Fluid Dynamics (CFD) code is applied to simulate complex turbulent flow field, temperature field, stochastic particle trajectories and heat transfer process in the HRSG.
A strong deposition tendency along the simulation time is found in the HR3 with average deposition thickness nearly 11mm.
The results of numerical simulation have a reasonable agreement with the field measurement in the industrial scale HRSG.

The simulation results indicate that depending on the height of the epitaxy room (h), the ∆T/mm can be changed from a negative to a positive value.
Simulation studies were also carried out to understand and optimize the gas flow and thermal behaviors.
A three-dimensional simulation of gas flow, heat transfer, radiation and magnetic field was performed to understand the gas flow behavior and thermal distribution in the reactor.
CFD-ACE+ software [6] was used for the simulation.
The three-dimensional simulation results indicate that gas flow behaviors and ∆T/mm values can be controlled depending on the h value.

The CFD simulation shows that the flow field is symmetrical during the inlet and outlet, as shown in Fig. 5.
CFD simulation of parylene deposition chamber. 3.
The parylene TGA inspection, CFD simulation, and modification of parylene deposition chamber and water-proof testing improved uniformity by 6% in the nanometer scale to meet new applications of parylene, such as the delamination layer of OLED, TSV, and water-proofing mobile phones.

In this paper, the numerical simulation research for the back-feeder is carried out.
Under the working conditions, the consistence of the flow character between the simulation and the experiment proved the practicability of the mathematic and physical models in this simulation.
With the development of the computer technology, the CFD (Computational Fluid Dynamics) has developed rapidly, which provide a low-cost and high efficient design method.
In this work, based on the two-fluid model, the 2D numerical simulation for back-feeder and standpipe is carried out to test the validity of the simulation models.
Figure 1 illustrates the experimental apparatus used in this simulation study.

The results of the simulation are checked out through the experiments.
With the development of CFD and computer technology, three-dimensional flow field in torque converter can be calculated accurately.
Basic computational methods of flow field by CFD are simplified introduced in this paper [4]. 3-D geometric model of wheel in torque converter is built in UG.
The Simulation result is test by static endurance test.
The Simulation Model for Torque Converter Flow Field.

The simulation results show good agreement with the experimental data.
CFD (Computational Fluid Dynamics) methods have been used for simulating vessel maneuverability since the beginning of the 1990s [2].
So far, many people have studied the flow field around the underwater vehicles using CFD method [3-6].
The FLUENT is used for the simulation of full appended SUBOFF model.
Fig. 5 Comparison of axial force coefficient X on the generic bare hull Fig. 6 Comparison normal force coefficient Z′ on the generic bare hull In this part, a 2D in house code-CADMV and commercial CFD code FLUENT are introduced for simulation of the flow field and hydrodynamics for SUBOFF model.

Numerical Simulation of Interior Flow Field of a Variable Thrust Rocket Engine Yue Chun-guo1, a, Chang Xin-Long1, b, Yang Shu-jun2, c, Zhang You-hong1, d 1Xi’an Research Inst. of Hi-Tech Hongqing Town, Xi’an, China, 710025 2203 Institute of China North Industries Group Corporation, Xi’an, China, 710065 aemail: wsgangzi802 @qq.com bemail: xinlongch@sina.com.cn cemail: chuangshawudi@etang.com demail: zyhnpu@hotmail.com Keywords: Variable thrust rocket engine; Numerical simulation; Flow field; Fluent Abstract: With the support of powerful calculation ability of computer and Fluent of CFD software, integrative simulation research of the variable thrust liquid propellant rocket engine was developed.
Numerical simulation of interior flow field of a variable thrust rocket engine with flux-oriented injector was done.
Based on the previous research, combustion flow integrated simulations of variable thrust engine were developed.
Mathematical model[4] Eulerian-Lagrangian approach was adopted in the simulation of liquid rocket engine spray combustion process.
[4] Zhao Jian-xing: Numerical simulation of combustion.

Additionally, computational fluid dynamics (CFD) analysis was also utilized to reveal the mechanism of the coolant flow behavior near the cutting zone [5].
(a) Perspective of CFD model, (b) VFOL distribution within the flank wear land Coolant Flow Visualization.
The general purpose of CFD code was utilized [5] to reveal the behavior of coolant flow around the entry of the tunnel at the minor flank face.
Stander k-epsilon model was used for describing the turbulent flow of the coolant inside the simulation area.
Finally, the actions of the coolant flow located within the width of the flank wear land were visualized by CFD analysis.

An orthogonal array, the S/N ratio, MPCI, ANOVA, and CFD were used to study the multiple-objectives in the ultrathin centrifugal fan design.
This study used an alternative approach based on the combination of CFD, the Taguchi method, and fuzzy logic to determine the optimal design parameters of the ultrathin fan.
Confirmation Experiments Confirmation experiments were performed to test the fuzzy-based Taguchi method design of the centrifugal fan, which used CFD software, Solidworks Flow Simulation.

In this paper, based on reducing noise and isolating vibration, the inner flow field of the centrifugal pump was emulated by CFD method.
They mainly studied by two kinds of methods: experimental and numerical simulation methods [2].
Numerical simulation of the dynamic effects due to impeller-volute interaction in a centrifugal pump[J].
Numerical simulation of unsteady flow in double-blade pump [J].
Dissertation 3-D unsteady numerical simulation and fluid-induced vibration for centrifugal pumps [D].