نتایج جستجو برای: environmental fluid dynamics code efdc
تعداد نتایج: 1141048 فیلتر نتایج به سال:
To improve the calculation of the flow properties of an aerospike nozzle, different turbulence models were investigated in this study. The primary shape of the nozzle plug is determined through utilizing an approximate method. The flow field is, then, simulated using the Navier-Stokes equations for compressible flows. The commercial computational fluid dynamics code Fluent is used to simulate t...
conclusion results reinforced the pivotal role of vascular geometry, with respect to hemodynamics, together with the importance of performing patient-specific cfd analyses, through which the effect of different blood flow conditions on the aneurysm hemodynamics could be evaluated. objectives this study aimed to investigate the effects of variations in heart rate and internal carotid artery (ica...
This white-paper reports on an enabling effort that involves porting a legacy 2D fluid dynamics Fortran code to NVIDIA GPUs. Given the complexity of both code and underlying (custom) numerical method, the natural choice was to use NVIDIA CUDA C to achieve the best possible performance. We achieved over 4.5x speed-up on a single K20 compared to the original code executed on a dual-socket E5-2687W.
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background: several multiphase flow analyses have been developed to predict the fate of particles used in inhalation drug delivery; however, the collapse of droplets during their passage through respiratory tract has not been investigated. objective: to assess the probability of droplet collapse in the upper respiratory tract. methods: a 3d model of mouth-to-second generation airway after the t...
In 2009 a major next step was made in our effort to develop a two-dimensional (2D) radiation-hydrodynamics code for laser plasma simulations, namely, a new scheme for solving the radiation transport equation has been constructed and tested. The new code has been named RALEF-2D (Radiative Arbitrary LagrangianEulerian Fluid dynamics). The RALEF-2D code is based on the CAVEAT hydrodynamics package...
the complete 3d nonlinear dynamic problem of extensible, flexible risers conveying fluid is considered. for describing the dynamics of the system, the newtonian derivation procedure is followed. the velocity field inside the pipe formulated using hydrostatic and bernoulli equations. the hydrodynamic effects of external fluids are taken into consideration through the nonlinear drag forces in var...
A local proper orthogonal decomposition (POD) plus Galerkin projection method is applied to the unsteady lid-driven cavity problem, namely the incompressible fluid flow in a twodimensional box whose upper wall is moved back and forth at moderately large values of the Reynolds number. Such a method was recently developed for one-dimensional parabolic problems. Its extension to fluid dynamics pro...
Researchers at the NASA Lewis Research Center are currently developing an "intelligent" interface to aid in the development and use of large, computational fluid dynamics flow-solver codes for studying the internal fluid behavior of aerospace propulsion systems. This paper discusses the requirements, design, and implementation of an intelligent interface to Proteus, a general purpose, 3-dimensi...
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