Results 21 to 30 of about 21,778,692 (350)

The influence of strongly turbulized liquid flow parameters on the near-wall transitional flows in the boundary layer

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2020
The effect of the scale and the high intensity of incident-flow turbulence in a boundary layer on a smooth plane plate with rounded edge (experiment T3H) under a zero pressure gradient was analyzed.
V.M. Zubarev
doaj   +1 more source

An analytical turbulence modeling based on the double-Lagrangian formalism

open access: yesJournal of Fluid Science and Technology, 2019
An analytical approach to turbulence modeling based on the double-Lagrangian formalism is applied to turbulence modeling. Extending a selfconsistent closure theory of homogeneous turbulence, current approach allows us to derive a quadratic nonlinear ...
Taketo ARIKI
doaj   +1 more source

“Equilibrium” and “non-equilibrium” turbulence

open access: yesTheoretical and Applied Mechanics Letters, 2017
We review the concept of “equilibrium” in turbulence. It generally means a property of the energy spectrum, it can also be understood in terms of a scalar property, the Taylor–Kolmogorov formula relating the dissipation rate to the total energy and ...
Robert Rubinstein, Timothy T. Clark
doaj   +1 more source

Turbulence transport in the solar corona: Theory, modeling, and Parker Solar Probe

open access: yesPhysics of Plasmas, 2021
A primary goal of the Parker Solar Probe (PSP) Mission is to answer the outstanding question of how the solar corona plasma is heated to the high temperatures needed for the acceleration of the solar wind.
G. Zank   +5 more
semanticscholar   +1 more source

Investigation of Turbulence Modeling for Point-Absorber-Type Wave Energy Converters

open access: yesEnergies, 2020
Reviewing the literature of CFD-based numerical wave tanks for wave energy applications, it can be observed that different flow conditions and different turbulence models are applied during numerical wave energy converter (WEC) experiments.
Christian Windt   +2 more
doaj   +1 more source

Turbulence modulation of the upward turbulent bubbly flow in vertical ducts

open access: yesNuclear Engineering and Technology, 2015
The present paper aims at improving the modeling of turbulence for the upward turbulent bubbly flow through the use of experimental databases that contain data on small and large vertical ducts.
Hongna Zhang   +2 more
doaj   +1 more source

Quasi-analytical solutions of a turbulence-modeling equation on the robustness of decaying homogeneous turbulence

open access: yesAdvances in Mechanical Engineering, 2020
The present study introduces third-order quasi-analytical solutions of a turbulence-modeling equation, where the standard k − ϵ model equation is used because this model is commonly and widely used in engineering applications.
Hiroki Suzuki   +2 more
doaj   +1 more source

Progress in Phenomenological Modeling of Turbulence Damping around a Two-Phase Interface

open access: yesFluids, 2019
The presence of a moving interface in two-phase flows challenges the accurate computational fluid dynamics (CFD) modeling, especially when the flow is turbulent.
Wenyuan Fan, Henryk Anglart
doaj   +1 more source

Differentiable physics-enabled closure modeling for Burgers’ turbulence

open access: yesMachine Learning: Science and Technology, 2023
Data-driven turbulence modeling is experiencing a surge in interest following algorithmic and hardware developments in the data sciences. We discuss an approach using the differentiable physics paradigm that combines known physics with machine learning ...
Varun Shankar   +4 more
doaj   +1 more source

Bubble characteristics and turbulent dissipation rate in horizontal bubbly pipe flow

open access: yesAIP Advances, 2021
The energy dissipation rate is a crucial parameter for system control and turbulence modeling but is difficult to quantify in gas–liquid two-phase flows. Little relevant information is available, especially in horizontal pipe flows.
Weiyang Zhao   +4 more
doaj   +1 more source

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