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Study on Flow Velocity Distribution in Open Channel With Flexible Vegetation [PDF]

open access: yesFrontiers in Plant Science, 2021
Ecological management of river channels is a hot topic for current sustainable development and flow measurement of ecological river is an important part. In this article, a flow velocity distribution model of the channel containing flexible vegetation is
Shiyu Wang   +5 more
doaj   +2 more sources

Velocity distribution in active particles systems. [PDF]

open access: yesSci Rep, 2016
AbstractWe derive an analytic expression for the distribution of velocities of multiple interacting active particles which we test by numerical simulations. In clear contrast with equilibrium we find that the velocities are coupled to positions. Our model shows that, even for two particles only, the individual velocities display a variance depending on
Marconi UM   +4 more
europepmc   +5 more sources

ROCKER MECHANISM FROM CLASSICAL TO MODERN KINEMATICAL ANALYSIS [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2020
Kinematical mechanism analysis is usually used for motion study or to simulate and analyse the movement of mechanical assemblies and the whole mechanism. In this paper we will consider kinematical analysis regarding the rocker mechanism which is commonly
MALCOCI, Iulian, GUȚU, Marin
doaj   +1 more source

Velocity and Velocity-Difference Distributions in Burgers Turbulence [PDF]

open access: yesPhysical Review Letters, 2004
We consider the one-dimensional Burgers equation randomly stirred at large scales by a Gaussian short-time correlated force. Using the method of dissipative anomalies, we obtain velocity and velocity-difference probability density functions and confirm the results with high-resolution numerical simulations.
Boldyrev, S., Linde, T., Polyakov, A.
openaire   +3 more sources

Numerical Investigation of Internal Flow Properties around Horizontal Layered Trees by Using the Reynolds Stress Model

open access: yesMathematics, 2023
The aim of this article is to numerically explore the effects of a horizontal double layer of trees (HDLT) across the whole width of the channel on the flow structures under a steady flow rate and subcritical conditions.
FAKHAR Muhammad Abbas   +2 more
doaj   +1 more source

VELOCITY AND DISTRIBUTION OF PRIMORDIAL NEUTRINOS [PDF]

open access: yesInternational Journal of Modern Physics D, 2008
The cosmic neutrinos background (CNB) comprises primordial neutrinos that were decoupled when the Universe was very young. Its detection is complicated, especially if we take into account neutrino mass and a possible breaking of Lorentz invariance at high energy, but has a fundamental relevance to studying the Big Bang. In this paper, we will see that
Alfaro Solís, Jorge Luis   +1 more
openaire   +5 more sources

CLASSICAL AND MODERN KINEMATIC ANALYSIS APPLIED FOR MECHANISM STUDY [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2019
Mechanism kinematic analysis is usually used for motion study or for simulating and analyzing the movement of mechanical assemblies and the whole mechanism.
Iulian Malcoci, Marin Guţu
doaj   +1 more source

A Study of Wind Shear Influences on the Aerodynamic Performances of a UAV Airfoil

open access: yesApplied Sciences, 2023
In order to study the flight strategies of birds in shear wind and realize the long-range flight of an unmanned aerial vehicle (UAV), the aerodynamic performances of a UAV’s airfoil under different shear wind are studied using numerical methods.
Yin Yang, Dawei Liu, Lianshan Lu
doaj   +1 more source

Effect of Airflow Non-Uniformities on the Thermal Performance of Water–Air Heat Exchangers—Experimental Study and Analysis

open access: yesEnergies, 2022
The thermal performance of fin-and-tube heat exchangers (HX) is a crucial aspect in a multitude of applications and fields; several design and operational parameters influence this performance.
Mahmoud Khaled   +5 more
doaj   +1 more source

Propeller-Induced Jet Impact on Vegetated Flow Fields: Complex Coupled Effect towards the Velocity Profile

open access: yesApplied Sciences, 2023
The failure of swirling ship propellers in marine environments can lead to huge repair costs. One of the main causes of such failure is when propellers tangle with vegetation, especially in shallow flow environments like ports, harbours, or shipyards. In
Jaan H. Pu
doaj   +1 more source

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