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Raghavendra, CFD Simulation of a Co‒Current Spray Dryer for Silica Powder Production, Inter.Adv.

The expression (2) represents Strouhal number, with(f) the frequency of oscillation in the interaction region, (D) thehydraulicdiameterand (u) velocityof the jet: Str=f∙Du (2) The period of oscillations is determined by the switching time from the attachment wall to another and the transmission time through the feedback channel [3-6]; the frequency is determined by expression (3): T=2∙τt+τs=2∙(1C+ξ∙Lu) (3) Hypotheses: The simulation of the micro-injection systems is obtained with several hypotheses: ü Air and turbulent regime ü Incompressible ideal gas flow.
The Fluidic oscillator frequency to millimetre scale was simulated by the CFD code.

There is limited freedom in terms of design customization, and it has become a bottleneck for further research because the mesh design has many inherent dead zones that can allow foulant deposition [6]. 3D printing has been adopted in many recent studies to experimentally validate the performance of several innovative spacer designs (Fig 1b-e) that were found to be effective in computational fluid dynamic (CFD) simulations.

.% Colloid pH value 10 Incident angle Vertically (90°) Incident distance 1mm Nozzle diameter 0.2 mm Intensity of pressure 2 MPa Total processing time 6 hours Based on the above experimental parameters, a computational fluid dynamic (CFD) model for Non-submerged jet has been developed to investigate the hydrodynamics in nanoparticle colloid jet machining with small diameter nozzle.
According to the above simulation results, corresponding experimental parameters, such as dwelling time and scanning path can be developed to control the shapping process and accomplish surface shape correction.

Effect of spark timing on performance of a hydrogen gasoline engine Weibo Shia, Xiumin Yub, Ping Sunc State Key Laboratory of Automotive Simulation and Control, Jilin University, Renmin Street 5988, Changchun, Jilin 130022, China acappuccino_shi@sina.com, byuxm@jlu.edu.cn, c2669178718@qq.com Keywords: Spark timing, hydrogen, hydrogen-gasoline engine, excess air ratio, lean burn Abstract.
Vol. 88 (2011), p. 502-507 [4] Yang Z, Si A, Wang F, Guo N, Research into the formation process of hydrogen-air mixture in hydrogen fueled engines based on CFD.

Jacob,2005, CFD analysis and experimental investigations towards optimizing the parameters of Ranque–Hilsch vortex tube, International Journal of Heat and Mass Transfer 48, 1961–1973 [4].
Computational fluid dynamics simulation of length to diameter ratio effects on the energy separation in a vortex tube, Thermal Science, Year 2011, Vol. 15, No. 3, pp. 833-848 [6].

Three new shapes of hull bow design for the multipurpose amphibious vehicle were conducted at several speeds to investigate the hydrodynamic phenomena using Computational Fluid Dynamics (CFD, RANS code) which is applied by Ansys-CFX14.0 and Maxsurf.
Initial resistance and flow visualization simulation showed that water enters into the driver compartment and that there is a need for a hydrodynamic bow shape in order to prevent water build-up at the front of the driver’s place [5].
The computational setting for using the ANSYS-CFX is tabulated in Table 3 as follows: Table 3: Computational setting Parameter Setting Computing 64-bit Desktop pc 16GB of RAM Simulation type Steady state Mesh type Unstructured hybrid (tetrahedral/prism) Turbulence model k-w (Shear stress transport) Wall modeling Automatic wall function based on a law of the wall formulation Advection scheme CFX high resolution Calm Water Resistance The calm water resistance needs to be established together with the added resistance for the different bow shapes to be able to evaluate the total performance of the design on a typical voyage.

., delta winglet.[1] described the 3-D numerical simulation to examine the effect of strike-angle and shape winglet vortex generator (WVG) for heat transfer.
They used the Pareto optimal approach or calculating the higher value of factors to attain the most significant heat transfer enrichment with low-pressure drop. [11] represented the performance of channel drift with dissimilar VGs connected to the lower surface by 3-D numerical simulations.
They used the ANSYS software to find out the heat transfer rate with the CFD module.
“Numerical Simulations of Performance of Plate Fin Tube Heat Exchanger Using Rectangular Winglet Type Vortex Generator with Punched Holes.”
“Numerical Simulation on Performances of Plane and Curved Winglet Type Vortex Generator Pairs with Punched Holes.”

Han et al. (2011) calculated the load coefficients for a car container running on the bridge and the load coefficients for the bridge were also investigated by numerical simulations (CFD).

., “Heat transfer simulation of metal foam heat sink for LEDs,” Proceedings of 18th CFD Conference, Taiwan, August, 2011