Results 41 to 50 of about 58,423 (313)
Comparison of Subgrid-scale Viscosity Models and Selective Filtering Strategy for Large-eddy Simulations [PDF]
, 2013 Explicitly filtered large-eddy simulations (LES), combining high-accuracy schemes with the use of a selective filtering without adding an explicit subgrid-scales (SGS) model, are carried out for the Taylor-Green-vortex and the supersonic-boundary-layer ...
STEFANIN VOLPIANI, Pedro +3 more
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Scaling Laws for Partially Developed Turbulence
Frontiers in Applied Mathematics and Statistics, 2022 We formulate multifractal models for velocity differences and gradients which describe the full range of length scales in turbulent flow, namely: laminar, dissipation, inertial, and stirring ranges.
Abigail Hsu, Ryan Kaufman, James Glimm
doaj +1 more source
International Journal of Automotive Science and Technology, 2020 This report presents a method with high spatial and temporal accuracy for estimating solutions of Navier-Stokes equations at high Reynolds number. It employs Crank-Nicolson time discretization along with the zeroth-order ap-proximate deconvolution model ...
Mustafa Ağgül
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Data-Driven Transition Models for Aeronautical Flows with a High-Order Numerical Method
Aerospace, 2022 Over the past years, there has been innovative ideas about data-driven turbulence modeling proposed by scholars all over the world. This paper is a continuity of these significant efforts, with the aim of offering a better representation for turbulence ...
Yanjun Chen, Shengye Wang, Wei Liu
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Critical balance in magnetohydrodynamic, rotating and stratified turbulence : towards a universal scaling conjecture [PDF]
, 2009 It is proposed that critical balance - a scale-by-scale balance between the linear propagation and nonlinear interaction time scales - can be used as a universal scaling conjecture for determining the spectra of strong turbulence in anisotropic wave ...
Nazarenko, Sergey +5 more
core +1 more source
Acoustics, 2020 A benchmark of Reynolds-Averaged Navier-Stokes (RANS)-informed analytical methods, which are attractive for predicting fan broadband noise, was conducted within the framework of the European project TurboNoiseBB.
Carolin Kissner +11 more
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Numerical Simulation on Aerodynamics of Multi-Element Airfoil with Drooped Spoiler in Ground Effect
Xibei Gongye Daxue Xuebao, 2019 By using the finite volume method and k-ω SST turbulence model to solve the Reynolds Average Navier-Stokes equation and using the slipping wall to simulate the relative movement of the ground, the ground effect on the aerodynamic characteristic of multi ...
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Analysis of Flow Characteristics and Effects of Turbulence Models for the Butterfly Valve
Applied Sciences, 2021 In the present study, the flow characteristics of butterfly valves with different sizes DN 80 (nominal diameter: 76.2 mm), DN 262 (nominal diameter: 254 mm), DN 400 (nominal diameter: 406 mm) were numerically investigated under different valve opening ...
Sung-Woong Choi +2 more
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A comparison of modified K-ε turbulence models for buoyant plumes [PDF]
, 2001 The effect of buoyancy on the production and dissipation of turbulent kinetic energy is investigated in variants of the popular k- ε turbulence model.
Rubini, Philip A. +2 more
core
A weak turbulence theory for incompressible magnetohydrodynamics [PDF]
, 2000 We derive a weak turbulence formalism for incompressible magnetohydrodynamics. Three-wave interactions lead to a system of kinetic equations for the spectral densities of energy and helicity. The kinetic equations conserve energy in all wavevector planes
S. V. Nazarenko +7 more
core +1 more source