Results 31 to 40 of about 174,040 (347)
ISM properties in hydrodynamic galaxy simulations: Turbulence cascades, cloud formation, role of gravity and feedback [PDF]
, 2010 We study the properties of ISM substructure and turbulence in hydrodynamic (AMR) galaxy simulations with resolutions up to 0.8 pc and 5x10^3 Msun. We analyse the power spectrum of the density distribution, and various components of the velocity field. We
Block, David L. +4 more
core +1 more source
Generative modeling of turbulence
Physics of Fluids, 2022 We present a mathematically well-founded approach for the synthetic modeling of turbulent flows using generative adversarial networks (GAN). Based on the analysis of chaotic, deterministic systems in terms of ergodicity, we outline a mathematical proof that GAN can actually learn to sample state snapshots from the invariant measure of the chaotic ...
C. Drygala +3 more
openaire +2 more sources
On the Relative Effect of Underwater Optical Turbulence in Different Channel Conditions
IEEE AccessThis paper presents a simulation framework for modelling optical underwater turbulence in conjunction with absorption and scattering. Using this technique, the channel is evaluated in two ways: the turbulent statistics in different channel conditions ...
Callum T. Geldard +2 more
doaj +1 more source
Comparison of Different Turbulence Models in Open Channels with Smooth-Rough Bedforms [PDF]
Mehran University Research Journal of Engineering and Technology, 2013 The turbulence models play an important role in all types of computational fluid dynamics based numerical modelling. There is no universal turbulence model which can be applied in all the scenarios.
Usman Ghani, Shahid Ali, Sabahat Arif
doaj
The parameterisation of turbulence in the marine environment [PDF]
, 2016 There are many problems in the fields of flow modelling around structures and tidal stream energy yield analysis which require a thorough understanding of the turbulent and time-averaged flow speeds in marine environments.
Hardisty, Jack, Jennings, Ross
core +1 more source
Global 3D full-scale turbulence simulations of TCV-X21 experiments with SOLEDGE3X
Nuclear Materials and EnergyFirst principle modelling of edge plasma turbulence including neutrals and plasma recycling on the wall remains a challenge, in particular due to the long time scales necessary to simulate to reach particle balance.
H. Bufferand +13 more
doaj +1 more source
Transition models for turbomachinery boundary layer flows : a review [PDF]
, 2017 Current models for transition in turbomachinery boundary layer flows are reviewed. The basic physical mechanisms of transition processes and the way these processes are expressed by model ingredients are discussed.
Dick, Erik, Kubacki, Slawomir
core +2 more sources
PhotonicsAn experimental investigation was conducted to evaluate the statistical properties and scintillation mitigation performance of multi-aperture free-space optical transmission under real-measured atmospheric turbulence.
Shutong Liu +4 more
doaj +1 more source
A Machine Learning Approach to Improve Turbulence Modelling from DNS Data Using Neural Networks
International Journal of Turbomachinery, Propulsion and Power, 2021 In this paper, we investigate the feasibility of using DNS data and machine learning algorithms to assist RANS turbulence model development. High-fidelity DNS data are generated with the incompressible Navier–Stokes solver implemented in the spectral/hp ...
Yuri Frey Marioni +5 more
doaj +1 more source
A Calibration Study with CFD Methodology for Self-Propulsion Simulations at Ship Scale
Journal of Marine Science and Engineering, 2023 This paper summarises the main findings from the full-scale Computational Fluid Dynamics (CFD) analyses conducted at SINTEF Ocean on the case of MV REGAL, which is one of the benchmark vessels studied in the ongoing joint industry project JoRes.
Vladimir Krasilnikov +3 more
doaj +1 more source