Results 71 to 80 of about 13,803 (197)
Determination of wind turbine far wake using actuator disk [PDF]
, 2014 The growth in size of wind turbines over the last years is significant. The rotor diameter becomes somehow comparable to atmospheric boundary layer at the land surface. In this case the assumption of uniform velocity of upcoming wind cannot be valid. The
AMER, Rodeyna +2 more
core +3 more sources
AtmosphereThis research investigates the influence of buildings on the flow pattern and pollutant spread under different temperature stratification scenarios. Using Reynolds-averaged Navier–Stokes (RANS) equations alongside the large eddy simulation (LES) model ...
Jinrong Zhao +6 more
doaj +1 more source
Modelling and Simulation of Effusion Cooling—A Review of Recent Progress
EnergiesEffusion cooling is often regarded as one of the critical techniques to protect solid surfaces from exposure to extremely hot environments, such as inside a combustion chamber where temperature can well exceed the metal melting point.
Hao Xia +2 more
doaj +1 more source
Application of Lattice Boltzmann and Navier-Stokes Methods to NASA's Wall Mounted Hump [PDF]
Lattice Boltzmann (LB) based Large Eddy Simulation (LES), Reynolds-averaged Navier-Stokes (RANS) as well as hybrid RANS/LES methods within the Launch Ascent and Vehicle Aerodynamics (LAVA) solver framework are applied to NASA's wall-mounted hump ...
Barad, Michael F. +4 more
core +1 more source
Optimising UCNS3D, a High-Order finite-Volume WENO Scheme Code for arbitrary unstructured Meshes [PDF]
, 2016 UCNS3D is a computational-fluid-dynamics (CFD) code for the simulation of viscous flows on arbitrary unstructured meshes. It employs very high-order numerical schemes which inherently are easier to scale than lower-order numerical schemes due to the ...
Ponweiser, Thomas +1 more
core
Engineering Applications of Computational Fluid Mechanics, 2016 The turbulent flow in a centrifugal pump impeller is bounded by complex surfaces, including blades, a hub and a shroud. The primary challenge of the flow simulation arises from the generation of a boundary layer between the surface of the impeller and ...
Zhi-Feng Yao +2 more
doaj +1 more source
Wall-Modeled Lattice Boltzmann and Navier-Stokes Approaches for Separated Flows [PDF]
Lattice Boltzmann (LB) and hybrid Reynolds-averaged Navier-Stokes/large eddy simulation (RANS/LES) methods within the Launch Ascent and Vehicle Aerodynamics (LAVA) solver framework are applied to NASA's Revolutionary Computational Aerosciences (RCA ...
Barad, Michael +6 more
core +1 more source
Turbulence Modeling Effects on the CFD Predictions of Flow over a Detailed Full-Scale Sedan Vehicle
Fluids, 2019 In today’s road vehicle design processes, Computational Fluid Dynamics (CFD) has emerged as one of the major investigative tools for aerodynamics analyses.
Chunhui Zhang +3 more
doaj +1 more source
Large-Eddy / Reynolds-Averaged Navier-Stokes Simulations of a Dual-Mode Scramjet Combustor [PDF]
, 2012 Numerical simulations of reacting and non-reacting flows within a scramjet combustor configuration experimentally mapped at the University of Virginia s Scramjet Combustion Facility (operating with Configuration A ) are described in this paper.
Cutler, Andrew +10 more
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Lagrangian stochastic modeling of acceleration in turbulent wall-bounded flows
, 2019 The Lagrangian approach is natural to study issues of turbulent dispersion and mixing. We propose in this work a general Lagrangian stochastic model including velocity and acceleration as dynamical variables for inhomogeneous turbulent flows.
Chibbaro, Sergio +3 more
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