Results 21 to 30 of about 4,208,553 (288)

Identifying effective reservoir capacity, water supply, inflow for tradeoff between human and ecological demand

open access: yesMATEC Web of Conferences, 2018
To protect the river ecosystem and sustain ecological flow regime, it’s vital to consider environmental flow management in reservoir operation. Many researches try to use more detailed environmental flow management strategies to improve ecological flow ...
Shan He, Xin’an Yin, Yang Zhifeng
doaj   +1 more source

Flow Regimes and Föhn Types Characterize the Local Climate of Southern Patagonia

open access: yesAtmosphere, 2020
The local climate in Southern Patagonia is strongly influenced by the interaction between the topography and persistent westerlies, which can generate föhn events, dry and warm downslope winds.
Franziska Temme   +3 more
doaj   +1 more source

An analysis of flow-like motion of avalanches based on physical modeling experiments

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Flow-like motion is the main forms of rock avalanche emplacement, which is the foundation to reveal the dynamic mechanisms of rock avalanches. In this paper, a series of physical modeling experiments based on the Particle Image Velocimetry(PIV)analysis ...
Yanmei LONG   +5 more
doaj   +1 more source

Flow variation at multiple scales filters fish life histories and constrains community diversity in desert streams

open access: yesEcosphere, 2022
Environmental regimes, which encompass decadal‐scale or longer variation in climate and disturbance, shape communities by selecting for adaptive life histories, behaviors, and morphologies.
Ethan M. Baruch   +3 more
doaj   +1 more source

The Natural Flow Regime [PDF]

open access: yesBioScience, 1997
H umans have long been fascinated by the dynamism of free-flowing waters. Yet we have expended great effort to tame rivers for transportation, water supply, flood control, agriculture, and power generation. It is now recognized that harnessing of streams and rivers comes at great cost: Many rivers no longer support socially valued native species or ...
N. LeRoy Poff   +7 more
openaire   +1 more source

Gas–Liquid Two-Phase Upward Flow through a Vertical Pipe: Influence of Pressure Drop on the Measurement of Fluid Flow Rate

open access: yesEnergies, 2018
The accurate estimation of pressure drop during multiphase fluid flow in vertical pipes has been widely recognized as a critical problem in oil wells completion design.
Tarek A. Ganat, Meftah Hrairi
doaj   +1 more source

Comparison on Hydraulic Characteristics of Vertical and Horizontal Air-Cushion Surge Chambers in the Hydropower Station under Load Disturbances

open access: yesEnergies, 2023
Hydroelectric energy is an increasingly vital and effective renewable energy for modern society. The protective effect on the water hammer in the pipeline, the operational stability of the hydropower system, and the flow regime in the air-cushion surge ...
Tingyu Xu   +5 more
doaj   +1 more source

Construction and Testing of a Rarefied Gas Flow Facility [PDF]

open access: yes, 1967
A low-density gasdynamic facility, suitable for measurement of mass flow through small (approximately 1 mm diameter) nozzles, tubes, and orifices, was designed and constructed. The system is capable of producing and measuring mass flows at 100:1 upstream/
Henderson, Arnold Herbert   +1 more
core   +1 more source

A discriminative method to flow regimes based on the flow resistance law

open access: yesShui kexue jinzhan
Upper- and lower-flow regimes are formed under different conditions. To identify them is important for predicting mobile bed resistance. Based on the dimensionless resistance equation, a new discriminant function to flow regimes is deduced, which ...
Junzheng LIU   +4 more
doaj   +1 more source

Experimental Research on Pressure Drop and Flow Regime of Gas-liquid Two-phase Flow through Venturi Bubble Generator

open access: yesYuanzineng kexue jishu, 2023
Venturi-type bubble generator as well as its performance has been received wide attentions by engineers and researchers in recent decades. In this paper, experimental research was carried out to study flow regime and pressure drop of the gas-liquid (air ...
ZHAO Liang;ZHANG Chuqian;HUANG Jiang;ZHAO Yang;ZHANG Peng;HU Jie
doaj  

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