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To use these techniques, it is necessary to know the force of the wind acting on the cross-sectional area of the aircraft in all directions, simulations with a CFD, or testing in a wind tunnel which is complex and difficult.

Meng, CFD simulation of the flameproof unit in the diesel engine’s inlet system, J.

Dunstan and Li [9] develop a computational fluid dynamics (CFD) simulation to describe how silt particles gain extra damaging potential from the collapsing bubbles, emphasizing how cavitation's presence worsens silt effect erosion.

The picture (Fig. 1) shows some examples of the data generated with the product lifecycle tools (CAD files, CFD data, change orders, NC codes, marketing results, user manuals, etc.
Gallet: Mathematics and Computers in Simulation, Vol. 70, (2006), p. 330

With the help of numerical simulations can be nowadays flows represent very detailed and accurate.
Due to the strongly three dimensional and unsteady turbulent characteristics of flow, which are marked with vortex shedding, flow reattachment and recirculation bubbles, the CFD reaches its limits.

Because CFD (Computational Fluid Dynamics) embraces the advantages of visualization and economy, it has become the main method to study the dispersion routes of indoor particles.
However, nearly all experimental validations for computational simulation choose gaseous pollutants or dust particles as research objects, while pertinent bio-aerosols are hardly used.

Stimulation Analyses With application of computational fluid dynamics (CFD) software Fluent [10], the flow pattern of natural gas transporting in the pipeline has been simulated before and after DRA injected, with purpose of revealing the gas flow pattern’s improvement law of DRA acted on the internal wall of pipeline.
FLUNENT: Computer Simulation of Fluid Engineering and Application Examples[M].

Simulation of magnetic suspensions for HGMS using CFD, FEM and DEM modeling[J].

Program is somehow an inter-stage between simple calculations on the basis of empirical relations and modern simulation methods on the basis of CFD.

Simulation was made using finite element procedure.
Analysis of the effect of module design on gas absorption in cross flow hollow membrane contactors via computational fluid dynamics (CFD) analysis.