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The results of numerical simulation were confirmed by fixed sampling method of immersed tube in goaf.
The Brief Introduction of Fluent Fluent is a kind of CFD software, it has powerful functions and can widely suitable for engineering calculation.
Fluent is the CFD Software Package which has the largest accompany in market, it can use for simulating the comprehensive flow range from incompressible to compressible height.
Considering the effect of the released gas in goaf and simulation establish easily, the No.304 goaf caving zone is set to be gas release area.
Non-equivalent caving goaf three zones study and simulation verification[J].Chinese journal of safety science,2010,20(10):37-40.

In the initial stage of the simulation, Computational Fluid Dynamics (CFD) analysis was commenced with the fluid modeling within a tank with a diameter of 62 m and a height of 28.7 m.
Ax=A×Sin2×π×tT (Eq. 9) Following the determination of the input for the CFD analysis, the process proceeded to the solving stage with a total of 60 time steps and a time increment of 0.1s.
Following the determination of the input for the CFD analysis, the process proceeded to the solving stage with a total of 60-time steps and a time increment of 0.1s.
This simulation utilizes the imported load feature to retrieve pressure data from the CFD simulation results.
Jäger, “Fuel Tank Sloshing Simulation Using the Finite Volume Method,” Graz, Austria, 2019

Study on the Sand/Dust Inject Approach in Sand/Dust Test System Hongwei Li 1, a, Hongyan Li 2,b, Ying Dong1, a, Haibo Han1, a, Li Niu1, a 1Baicheng Ordnance Test Center, Baicheng, China 137001 2Heilongjiang College of Construction, Harbin, China 150028 alhw467@sohu.com, blihongyan2003@sohu.com Keywords: Hydromechanics; gas/solid two-phase flow; CFD; environmental test Abstract.
In order to obtain the anticipated sand/dust concentration and uniformity in the test segment, numerical simulation methods are adopted to study the characters of different sand/dust inject approaches.
The numerical simulation results applied in the optimal design of particles inject system in some large sand/dust test system get a favorable progress.
All these factors coincide with the discrete phase model’s characters of the Fluent, so discrete phase model is adopted in this simulation.
Numerical Simulation and Experiment Study on Efficiency of Inertia Separator.

Numerical Simulation of the Viscous Flow for the Supersonic Jet Element Yong Xu1, a, Guoqing Zhang1, b and Fei Wang2,c 1School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China 2 School of Mechanical & Electronic Engineering, Beijing Institute of Technology, Beijing, 100081, China axyxuyong@bit.edu.cn, bzhangguoqing@bit.edu.cn, cwfphd@126.com Keywords: Supersonic Jet Element; Numerical Simulation; Viscous Flow; Switching Time.
The viscous flow of the supersonic jet element was simulated numerically based on CFD technology, and many tests have been done to verify the numerical precision.
So the numerical simulation of the viscous flow for the supersonic jet element is accurate and reliable, and it can be applied to investigate the steady flow and unsteady flow in supersonic jet element.
Numerical Simulation Method Fig.2 The solid scheme of the SJE Fig.3 The surface grids of the SJE Fig.2 has shown the solid scheme of the SJE, and Fig.3 has shown the surface girds of the SJE.
So the numerical simulation of the viscous flow for the supersonic jet element is accurate and reliable, and it can be applied to investigate the steady flow and unsteady flow in supersonic jet element.

Cold storage of gas flow field numerical simulation and verification.
Numerical simulation on temperature field in the door way of a minitype cold store.
Numerical simulation on temperature filed of a mini type cold store.
CFD simulation of heat and moisture transfer for predicting cooling rate and weight loss of cooked ham during air-blast chilling process.
CFD simulation of refrigerated disp lay cabinets.

The study on this technique was conducted by Ruitao Peng et al.[13], who evaluated the effectiveness of these internal micro-channel structures in the turning tool using computational fluid dynamics (CFD) simulations[24].
Design and performance of an internal cooling turning tool with micro-channel structures Ruitao Peng, Haojian Jiang, Xinzi Tang, Xiaofang Huang, Ying Xu, Yunbo Hu A novel turning tool, designed with 2mm micro-channels using CFD simulations, demonstrated improved heat transfer efficiency, reducing cutting forces and temperatures compared to traditional flood cooling methods[13]. 2.
Biermann, “Experimental studies and CFD simulation of the internal cooling conditions when drilling Inconel 718,” Int J Mach Tools Manuf, 2016, doi: 10.1016/j.ijmachtools.2016.06.003
Li et al., “Design of an internally cooled turning tool based on topology optimization and CFD simulation,” The International Journal of Advanced Manufacturing Technology, 2017, doi: 10.1007/s00170-016-9804-9
Yeo, “A computational fluid dynamics (CFD) model for effective coolant application in deep hole gundrilling,” Int J Mach Tools Manuf, vol. 113, pp. 10–18, Feb. 2017, doi: 10.1016/J.IJMACHTOOLS.2016.11.008

Design and simulation analysis of low temperature air deep hole processing system Hai Peng 1,a Qiang Wang 2,b 1.2School of Mechanical Engineering, Xi'an Shiyou University, Xi’an, Shannxi (710065), China ahpeng1104@sina.com, bwangqi ang1986@sina.com Keyword: Low temperature air cutting, Deep hole processing, Flow field simulation Abstract.
In view of the model is too complex, it is difficult for visualization research through the traditional physical simulation experiment.
Beside that, it is also difficult to get information near the chip blade; Computational fluid dynamics (CFD) is the effective method to solve the problem of two or three dimensional flow,and the flow information can be easily gained by CFD simulation whereas need a lot of test in the past.
Fig.4 Setting location diagram with boundary conditions The analysis of flow field simulation results contrast.
Xiao: Based on CAXA and FLUENT deep hole nesting of 3D numerical simulation of cutting fluid flow[J].

CFD software was used to simulate the water-oil falling film on the plate.The simulation results show that using a inclined plate within the reactor can expand the contact area between water and oil effectively.
(1) (2) Mathematical model and numerical simulation method Geometric model.
The research about flow of two immiscible liquids was mainly concentrated in the dispersed phase droplet formation mechanism aspects[5],while this paper considered more about the simulation analysis of oil droplet coalescence on the inclined plate.
The numerical simulation result shows that VOF model can well simulate the inclined plate falling film flow. 3.
Numerical simulation of wavy falling film flow using VOF method[J].

The result that obtained by simulation calculation can provide theoretic reference for the valve design.
With the rapid development of computer technology, Computational Fluid Dynamics (CFD) numerical simulation, with its low cost and its competency to simulate complex or ideal working condition, plays an irreplaceable role in developing hydraulic pressure products.
The result obtained by simulation calculation can provide theoretic reference for the valve design.
Numerical Simulation of the Flow Field of the Throttle Control Valve Modeling.
Parameters Determination and Simulation.

Design and Simulation Optimization of the Gravity oil-water Separator QiuLei 1, a, Jihai Duan*1,b 1Key Laboratory of Multiphase Fluid Reaction and Separation; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China aqiu2007lei@163.com, bduanjihai@yahoo.com Keywords: Coalescence, Oil-water Separation, Perforated Plate, Flow field.
Fig.1 Coalescence mechanism of inclined plates type coalescence component Numerical Method Computational fluid dynamics (CFD) is an effective approach to analyze the hydrodynamics in multiphase fluid.
As the specialized and widespread use CFD software, FLUENT was adopted to simulate the oil/water separator.
Table 1 Parameter settings in Simulation process Parameter Setting inlet Velocity-inlet outlet Outflow walls no slip operation pressure[kPa] 101.325 multi-flow model Mixture turbulence model k-ε Table 2 Physical properties Parameter Value oil Density[kg·m-3] 962 dynamic viscosity[Pa·s] 22.2×10-3 water Density[kg·m-3] 987.8 dynamic viscosity[Pa·s] 1.17×10-3 Model description As shown in the Fig.2 and Fig.3, the separator consists of inlet component, two perforated plates and coalescence internals.