Results 1 to 10 of about 6,328 (265)

A simplified model to estimate nonlinear turbulent transport by linear dynamics in plasma turbulence

Scientific Reports, 2023
A simplified model to estimate nonlinear turbulent transport only by linear calculations is proposed, where the turbulent heat diffusivity in tokamak ion temperature gradient(ITG) driven turbulence is reproduced for a wide parameter range including near-
Tomonari Nakayama, Motoki Nakata, Mitsuru Honda, Emi Narita, Masanori Nunami, Seikichi Matsuoka   +5 more
doaj   +3 more sources

The temporal and latitudinal dependences of turbulence driven by pickup ions in the outer heliosphere

Frontiers in Astronomy and Space Sciences, 2023
The distribution of turbulence in the heliosphere remains a mystery, due to the complexity in not only modeling the turbulence transport equations but also identifying the drivers of turbulence that vary with time and spatial location.
Bingbing Wang, Lingling Zhao, Lingling Zhao, Paria Abouhamzeh, Paria Abouhamzeh, Gary P. Zank, Gary P. Zank, Laxman Adhikari, Laxman Adhikari   +8 more
doaj   +1 more source

Supersonic Combustion Modeling and Simulation on General Platforms

Aerospace, 2022
Supersonic combustion is an advanced technology for the next generation of aerospace vehicles. In the last two decades, numerical simulation has been widely used for the investigation on supersonic combustion.
Shizhuo Huang, Qian Chen, Yuwei Cheng, Jinyu Xian, Zhengqi Tai   +4 more
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Assessing turbulence and mixing parameterizations in the gray-zone of multiscale simulations over mountainous terrain during the METEX21 field experiment

Frontiers in Earth Science, 2023
Multiscale numerical weather prediction models transition from mesoscale, where turbulence is fully parameterized, to microscale, where the majority of highly energetic scales of turbulence are resolved. The turbulence gray-zone is situated between these
David J. Wiersema, Sonia Wharton, Robert S. Arthur, Timothy W. Juliano, Katherine A. Lundquist, Lee G. Glascoe, Rob K. Newsom, Walter W. Schalk, Michael J. Brown, Darielle Dexheimer   +9 more
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Self-organization and nonlocal nature of geophysical turbulence and planetary boundary layers

Геофизический журнал, 2010
The classical paradigm of the theory of turbulence states that any turbulent flow can be considered as a superposition of the fully organized mean motion and the fully chaotic turbulence is characterized by the direct energy cascade (from larger to ...
S. S. Zilitinkevich
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Evaluation of influence of turbulence models on the vortex formation processes modeling in wind power [PDF]

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022
The paper studies the results of mathematical modeling of the external flow of Siemens 3D model SWT3.6120 (B52 air foil) horizontal axis wind turbine (HAWT), using the NavierStokes equations averaged by Reynolds (RANS) closed byk,kShear Stress Transport (
Evgeny V. Solomin, Alexandr A. Terekhin, Andrey S. Martyanov, Anton A. Kovalyov, Denis R. Ismagilov, Gleb N. Ryavkin, Askar Z. Kulganatov, Bogdan T. Pogorelov   +7 more
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A Three-dimensional Model for the Evolution of Magnetohydrodynamic Turbulence in the Outer Heliosphere

The Astrophysical Journal, 2023
We present a time-dependent, three-dimensional single-fluid model for the transport of magnetohydrodynamic (MHD) turbulence that is self-consistently evolving with a dynamic large-scale solar wind in the outer heliosphere.
Jens Kleimann, Sean Oughton, Horst Fichtner, Klaus Scherer   +3 more
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CFD Validation of Wall Laws in K-ω SST Model for Adverse Pressure Gradient-Free Downward Flow [PDF]

E3S Web of Conferences, 2023
This study introduces a validation investigation employing Computational Fluid Dynamics (CFD) to assess the utilization of the Consistent Wall Law (CWL) in tandem with the K-Shear Stress Transport (SST) turbulence model, specifically in scenarios ...
Belhadad Tarik, Kanna Anass, El Rhafiki T., Elyamani Nacer Eddine El Kadri   +3 more
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Flow and transport simulation of Madeira River using three depth-averaged two-equation turbulence closure models

Water Science and Engineering, 2012
This paper describes a numerical simulation in the Amazon water system, aiming to develop a quasi-three-dimensional numerical tool for refined modeling of turbulent flow and passive transport of mass in natural waters.
Li-ren Yu
doaj   +1 more source

Development of Explainable Data-Driven Turbulence Models with Application to Liquid Fuel Nuclear Reactors

Energies, 2022
Liquid fuel nuclear reactors offer innovative possibilities in terms of nuclear reactor designs and passive safety systems. Molten Salts Reactors (MSRs) with a fast spectrum are a particular type of these reactors using liquid fuel.
Mauricio E. Tano, Pablo Rubiolo
doaj   +1 more source