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The timing information is derived from the fast signal by so-called constant fraction discrimination (CFD).
The gated CFD signals are then logically ORed to provide the start signal for the TAC.
In particular a long delay of the CFD signals is required in order to gate them by the slower energy discriminator signals.
A simulation of fp for a sequence of anneals is shown in Fig. 12.
A simulation of fp for a sequence of anneals is shown in Fig. 13.

Some experimental and numerical studies have been conducted for investigating the thermal flow field [2, 3], and it is found that computational fluid dynamics (CFD) is a very effective way to investigate the performance of ACCs [4].
In order to make the numerical simulation manageable, some assumptions are made as follows: · steady-state condition/Incompressible viscous fluids Figure.1.
[3] HW., Krus, JO., Haanstra, R., van der Ham, and B., Wichers Schreur, “Numerical simulations of wind measurements at Amsterdam Airport Schipol,” J Wind Eng Ind Aerodyn, 91, 2003, pp. 1215–1223

The final decision and the selection of the design method for the blade can be made considering different analysis: the criterion of impeller weight, the structural analysis of the impeller, the CFD analysis of the fluid flow through the impeller, etc.
The computer simulations have been performed using a SUPERMICRO workstation with 2xIntel XEON CPU E5-2660v2 with 2x10 core, 2.2 GHz, 128 GB DDR3 RAM, 2x2 TB HDD and video card NVIDIA Quadro K5000.
All simulations with unrefined mesh were performed under 1 minute, while, for the refined mesh, the computing time lasted between 5 and 10 minutes.

The exhaust pipe is meshed by CFD pre-processing software GAMBIT.
The exhaust mechanism of power supercharger is studied with afore-mentioned method, the inlet velocity of pressure pipe is set 500m/s, 600m/s, 700m/s, 800m/s, 900m/s, 1000m/s respectively, the outlet pressure is set the hydrostatic pressure at 4.5m, 4m, 3.5m, 3m, 2m, 1m water depth respectively, other simulation parameters are the same as above mentioned.
In order to design Y-pipe structure, applying the experimental optimization technology, the relationship between the structure parameters and the exhaust performance of the pipe is studied with the same simulation model and parameters set as above

Considering steady-state conditions, fluid flow velocity in the axial direction very larger than the fluid velocity in the transverse direction through of porous medium and very smaller than the sonic velocity (viscous dissipation and substantive derivative of pressure terms negligible) [9,10], and without heat generation, Eq. 1 can be written in elliptical cylindrical coordinates in a three-dimensional form, as follows: (2) According to Fig. 1, the boundary conditions used in the simulation are given by: (3) at the surface (4) (5) where is the focal distance.
Several simulations considering the constant porosity (ε = 0.2, ε = 0.4, ε = 0.6 and ε = 0.8), variable porosity in cross-section of fixed bed reactor (Eq. 7) and constant mean porosity in the bed calculated by integrating Eq. 7 over the volume of the reactor, were done.
Ross: Second International Conference On CFD in the Minerals and Process Industries (CSIRO), Melbourne, Australia, (1999), p. 273

The solidification data obtained from casting trials were subsequently used in performing inverse heat transfer analysis to enable computer simulation of the casting process in computer software (MAGMASOFT® ).
Results Mold filling characteristics were investigated in CFD software and verified with visual inspection of castings.
Gaddam with MAGMASOFT® simulations is greatly appreciated.

Measuring cycle of the engine For example, in Fig. 6, Fig. 7 and Fig. 8 three load simulation diagrams recorded on chassis dynamometer are presented.
Subbarao, Commercial Vehicles Muffler Volume Optimization using CFD Simulation, SAE Technical Paper 2014-01-2440, 2014, doi:10.4271/2014-01-2440

planar line type causing negative pressure on the edge of the inner diameter, therefore, the distribution of the cavitation corrosion on the thrust bearing which applies this type of planar line is more extensive than that of others; the relative area of the pressure peak on the spiral groove thrust bearing formed by the arc line is the biggest (the absolute value of the peak is relatively lower), followed by the spiral groove thrust bearings formed by the spiral line and parabola line .In the junction between the slot and the dam along the circumferential direction, the variation of water film pressure gradient of the spiral groove formed by the spiral line is small, which feature will help enhance the stability of thrust bearing. 3.3 Results and Compares of Loading Capacity Fig. 2 Comparison of the loading capacity of Fig.3 Comparison of the loading capacity of spiral groove bearings with rotate speed change spiral groove bearings from experiment and numerical simulation
[5] Cheng Li, Liu Chao, Zhou Jiren, et al.Numerical Simulation on Geometrical Parameters for Open Pump Sump[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):50～55
[6] Shi Weidong, Li Qifeng, Lu Weigang, et al.Estimation and Experiment of Axial Thrust in Centrifugal Pump Based on CFD[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):60～63

Gu c 1 College of Mechanical and Power Engineering, Nanjing University of Technology, 211816 Nanjing, China a jy0321scl@163.com, b zhoujianfeng_ren@163.com, c bqgu@njut.edu.cn Keywords: Centrifugal pump, Unsteady flow, Vibration, Numerical simulation Abstract.
The methods of numerical simulation were discussed.
Yuan Shouqi et al. adopted CFD and Lighthill sound analogy theory to solve the acoustic field of volute in centrifugal pumps.
This model is not sufficient to provide a precise boundary layer simulation, but it gives satisfactory distribution of the pressure and velocity in the pump.

The Effect of Elliptical Form of Cylinder on Free Convection in Annular Space Elhadi Zoubai1,a* and Bachir Bouhamida1,b Laboratory of LSCMI, Faculty of Mechanical Engineering, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algeria ahadi_usto@yahoo.fr, bbouhamida68b@yahoo.fr Keywords: Free convection, thermal science, Newtonian fluid, steady simulation, CFD Abstract.
The governing equations are solved for numerical simulations of steady state and laminar regime.
In order to achieve this numerical simulation, the commercial code ANYS-CFX is used.
Kim, Numerical simulation of natural convection in annuli with internal fns, J.
Kamali, Numerical simulation of a non-equilibrium electrokinetic micro/nano fluidic mixer, J.