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Numerical Investigation of Aero Engine Afterburner Fuel Manifold Ping Wang, Xueshan Liu, Yingjun Lv, Bin Xie, Guoqing Liu Department of Aircraft and Power, Aviation University of Air Force, Changchun 130022, China wangping010@163.com Keywords: afterburner fuel manifold, boundary layer, nozzle hole Abstract: In this paper, Method of CFD is used to simulate afterburner fuel manifold for aero engine, and investigate the relationship between the boundary layer of nozzle hole and mass flow.
At the same time the numerical simulation of permitted maximum and minimum of nozzle hole was carried out and mass flow for calculation was also compared with the design value.
The Study and Simulation in SIMULINK of Temperature Control System for Airplane Engine Fuel Mail Main Pipe Experimental Platform[J], Machine Tool & Hydraulics, 2007，（8）：179-181
[4] Ping Wang, Changping Li, Yanchun Luo, Xin Hua,Yingjun lv.Convergent-divergent Nozzle Flows Analysis Based on CFD Simulation. 2012 IEEE International Conference on Cyber Technology in Automation, Control,and Intelligent Systems,CYBER 2012,709-712
Numerical Simulation of External-Compression Supersonic Inlet Flow Fields. 2012 IEEE 19th International Conference on Industrial Engineering and Engineering Management.2012,1696-1699

By numerical calculation with simulation of software FIRE, the effect of different combustion chamber structures on the cylinder pressure, temperature, accumulated heat release and the parameters such as NOx mass fraction was analyzed.
From the simulation results, the optimized fuel injection advance angle had greatly improved the diesel combustion and emission performance.
Based on diesel engine combustion as the research object, this paper had established a numerical model of combustion procedure of diesel engine by means of CFD simulation, studied the influence of different parameters on the combustion performance and optimized the structural parameters of diesel engine.
From the perspective of the engineering CFD calculation, model is a widely applied turbulence model currently, heat transfer and combustion flow can be calculated.
Simulation and analysis of the diesel engine combustion process based on FIRE [J].

In this paper, the hydraulic efficiency and circumferential force fx are selected as evaluation parameters , cascade CFD models are built and calculated with the different modified angles.
Fig.4 Inlet flow angle modification influence diagram Analysis of Outlet Flow Angle Modification It is similar to the inlet flow angle calculation that the CFD model is built and calculated.
Mechanics and Simulation of Geared Turbodrill.
CFD Simulation of Multistage Turbine Flow Field.
Computational Fluid Dynamics-Principle and Application of CFD Software.( China Tsinghua University Press, Peking,2004) In Chinese

The NG dispersion for LNG releasing on water was presented by this paper, and DNV’s UDM model and CFD model were combined as a new model, which was validated credibility by simulating a case.
The results of numerical simulation were treated by TECPLOT software, and then a 3D concentration of NG can be shown.
Numerical simulations (1) Case description Atmospheric stability is level D.
Computational Fluid Dynamics-CFD software principle and application[M].
Simulation Study on Instantaneous Release of LNG[J].

., computational fluid dynamics (CFD) and heat transfer techniques had been widely adopted to comprehend the complex transport phenomena in the various types of catalyst bed [6,7].
Methodology and Simulation Model The reactor vessel and static mixers used in the simulations adopted from part of the on-going BTL research carried by the Research and Development Center for Chemical Engineering Unit Operations and Catalyst (RCC) at King Mongkut’s University of Technology North Bangkok [12].
The packing applied in the simulation as shown in Fig. 2 was an only one realization among all possibilities.
Ranade, Improve reactors via CFD, Chem.
Jiamrittiwong, Simulation of the Flow in a Packed-Bed with and without a Static Mixer by Using CFD Technique, Proceedings of world academy of science, Engineering and Technology, Vol. 41 (2009), p. 875-880

Intake Design and Methodology This section will expound the intake design and CFD modelling methodology that was used for the intake studied.
Boon (2006) undertook a comprehensive CFD study of the intake.
Table 3: CFD study flow conditions Flow condition Symbol Mach 2 Mach 5 Freestream Static Pressure P∞ [Pa] 2453 5.1 Freestream Static Temperature T∞ [K] 120.55 36.83 Reynolds Number Re 21.1 x 106 0.108 x 106 Results and Discussion Viscous turbulent simulations were run on the four designed geometries.
Large eddy simulation of the transition process from regular to irregular shock-wave boundary layer interactions. s.l., 8th International Symposium on Turbulence and Shear Flow Phenomena
Numerical simulation of shock impingement on blunt cowl lip in viscous hypersonic flows.

Dular et al.[7] studied the unsteady cavitating flow by the numerical simulation and experimental measurements.
OpenFOAM is an object-oriented c++ library of classes and routines of use for writing CFD codes.
It has a set of basic features similar to any commercial CFD solver, such as turbulence models and discretization schemes.
The mixture cavitation model for the mass transfer by Kunz et al. was used in numerical simulation of cavitating flows.
SIMULATING CAVITATING FLOWS WITH LES IN OPENFOAM, V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010, J.

CFD results demonstrate that the trefoil-hole baffle could enhance the heat transfer rate of shell side effectively, and the maximal average Nusselt number is augmented by ～2.3 times that of no baffle, while average pressure loss increases by ～9.6 times.
Ma and Wang et al. investigated the influence of rod profile and pitch on shellside thermo-hydraulic performance with the CFD method, and the optimal values were obtained [3].
The geometrical model and meshes are generated with Gambit 2.3, and structural grids are adopted in the simulation.
In addition, a simulation of unit channel without baffles is done under the turbulent flow regime, and the Nusselt number and friction factor both match with those of the well-known correlative expression.
[3] Ma L., Wang Y., Yang J., Liu Z. and Liu W., Numerical simulation of rod baffle heat exchanger and its optimum design, Journal of Engineering Thermophysics (in Chinese) Vol. 32 (2011) p. 462-464

Energy consumption of gas-fired infrared radiant and heat exchanger by convection heating is comparative analyzed, CFD software is used to simulate fields of the temperature and the predicted percentage of dissatisfied.
Their study focused on the difference between the simulation results and the results obtained by ASHARE method, it is concluded that the ASHARE method results are 21% higher than that of simulation [5].
CFD software is used to simulate the temperature and the PPD (predicted percentage of dissatisfied) field.
Radiant heating Fig.3 Steady state of the two different heating modes Based on heat load: The simulation results of the two heating modes based on the same load are shown in Fig.3, the heat transfer coefficients of envelops are under the same conditions.
Based on the simulation, it is concluded that if the thermal isolation of the floor material is improved, more energy can be stored in the floor layer, effect of energy saving will be more significant in building application.

Liu1,b 1School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China amelius@sdu.edu.cn, bji_chunhui_love@126.com Keywords: Aeroacoustic noise, Face milling cutter, Numerical simulation, Spectra analysis Abstract.
Flow field of cutter surface was numerically simulated by the resolution of the Navier-Stokes equations (CFD) and five zones on cutter surface were founded to be the important noise source.
O-center of cutter; O’-observer; S-source cell Fig.1 Observer’s position as so as the source of noise Calculation and analysis of flow field using computational fluid dynamics (CFD) In order to capture the complicate and complex physical features of a face milling cutter, a commercial computational fluid dynamics (CFD) code, Fluent, is applied to perform the flow field analysis, which solves the Navier-Stokes equation using an unstructured finite volume-method.
Simulation and analysis of aerodynamics for high speed face milling cutters.