The Impact of Three-Dimensional Effects on the Simulation of Turbulence Kinetic Energy in a Major Alpine Valley. [PDF]
Boundary Layer Meteorol, 2018 The correct simulation of the atmospheric boundary layer (ABL) is crucial for reliable weather forecasts in truly complex terrain. However, common assumptions for model parametrizations are only valid for horizontally homogeneous and flat terrain.
Goger B +5 more
europepmc +2 more sources
An in silico analysis of heart rate impact on wall shear stress hemodynamic parameters in aortic coarctation [PDF]
Scientific ReportsThis study examines how heart rate (HR) affects hemodynamics in a South African infant with Coarctation of the Aorta. Computed tomography angiography segments aortic coarctation anatomy; Doppler echocardiography derives inlet flow waveforms.
Jie Wang +5 more
doaj +2 more sources
Limitations of Hall MHD as a model for turbulence in weakly collisional plasmas [PDF]
Nonlin. Processes Geophys., 16, 219-232, 2009, 2009 The limitations of Hall MHD as a model for turbulence in weakly collisional plasmas are explored using quantitative comparisons to Vlasov-Maxwell kinetic theory over a wide range of parameter space. The validity of Hall MHD in the cold ion limit is shown, but spurious undamped wave modes exist in Hall MHD when the ion temperature is finite.
G. G. Howes
arxiv +3 more sources
Energies, 2018 The operation of the wind turbines downstream is affected by the wake of the wind turbines upstream. Wind turbine wake flow is investigated by applying the actuator disc (AD) method. The modified k-ε turbulence model is proposed by using both the
Huilai Ren +3 more
doaj +2 more sources
Scaling Transition of Active Turbulence from Two to Three Dimensions [PDF]
Advanced ScienceTurbulent flows are observed in low‐Reynolds active fluids, which display similar phenomenology to the classical inertial turbulence but are of a different nature.
Da Wei +6 more
doaj +2 more sources
Research on the Intake Port of a Uniflow Scavenging GDI Opposed-Piston Two-Stroke Engine
Energies, 2022 The intake port structure optimization is very important for the uniflow scavenging opposed-piston two-stroke engine, as the intake port structure affects the scavenging efficiency and turbulence kinetic energy and thus further impacts the engine ...
Tianyou Pei +6 more
doaj +1 more source
Scientific Reports, 2023 Turbulence is a ubiquitous phenomenon in neutral and conductive fluids. According to classical theory, turbulence is a rotating flow containing vortices of different scales.
L. Q. Zhang +6 more
doaj +1 more source
Data-driven decomposition of the streamwise turbulence kinetic energy in boundary layers. Part 1. Energy spectra [PDF]
Journal of Fluid Mechanics, 2018 In wall-bounded turbulence, a multitude of coexisting turbulence structures form the streamwise velocity energy spectrum from the viscosity- to the inertia-dominated range of scales.
W. Baars, I. Marusic
semanticscholar +1 more source
The Gary Picture of Short-Wavelength Plasma Turbulence—The Legacy of Peter Gary
Frontiers in Physics, 2022 Collisionless plasmas in space often evolve into turbulence by exciting an ensemble of broadband electromagnetic and plasma fluctuations. Such dynamics are observed to operate in various space plasmas such as in the solar corona, the solar wind, as well ...
Y. Narita, T.N. Parashar, J. Wang
doaj +1 more source
Effect of the Reynolds number on turbulence kinetic energy exchanges in flows with highly variable fluid properties [PDF]
The Physics of Fluids, 2019 Spatial and spectral energy exchanges associated with the turbulence kinetic energy per unit mass, or half-trace of the velocity covariance tensor, are studied in an anisothermal low Mach number turbulent channel flow. The temperatures of the two channel
D. Dupuy +2 more
semanticscholar +1 more source