Results 71 to 80 of about 44,317 (262)

Analysis of air-water structure in self-aerated developing region of open channel flows

open access: yesShui kexue jinzhan, 2014
To investigate the air-water structural characteristic of the self-aerated developing zone in the open channel flow,the bubble size and quantity changes with the self-aeration development were evaluated experimentally,using a double-tip conductivity ...
WEI Wangru   +3 more
doaj   +1 more source

Air-Water Flow in Hydraulic Jumps on Macro-Roughness

open access: yes, 2016
Hydraulic jumps are highly complex three dimensional flows with strong energy dissipation and air bubble entrainment associated with intense mixing. To date turbulence and air-water flow observations in hydraulic jumps have been limited to smooth rectangular channels.
Felder, S, Chanson, H
openaire   +3 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Effect of tree microenvironment on sweet cherry fruit transpiration, xylem, and phloem flows

open access: yesEnvironmental and Experimental Botany
This study provides an overview of how shading covers can affect air vapor pressure deficit (VPD) and sweet cherry water status, and it fruit absolute growth rate (AGR), and its xylem (X), phloem (P), and transpiration (T) flows.
Ana Belén Mira-García   +5 more
doaj   +1 more source

Development and analysis of a new multi-function heat recovery split air conditioner with parallel refrigerant pipe

open access: yesAdvances in Mechanical Engineering, 2016
This study developed a heat recovery air conditioner to supply on-demand air conditioning and reclaim waste heat during operation. In addition to the conventional refrigerant pipe, a plate heat exchanger was designed and connected in parallel to the ...
Win-Jet Luo   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Experimental Study on Operation Regulation of a Coupled High–Low Energy Flue Gas Waste Heat Recovery System Based on Exhaust Gas Temperature Control

open access: yesEnergies, 2019
Controlling the exhaust gas temperature (EGT) of coal⁻fired boilers at a reasonable value is beneficial to ensuring unit efficiency and preventing acid corrosion and fouling of tail heating surfaces in power plants.
Jiayou Liu, Fengzhong Sun
doaj   +1 more source

An introduction to air-water flows in hydraulics

open access: yes, 2015
This report has been written as a contribution to the HYDRAULIC STRUCTURES DESIGN MANUAL, which is in preparation by the International Association for Hydraulic Research (IAHR). Within this framework, a series of monographs is being planned, in which the hydraulic design criteria for civil engineering structures are to be collected.
openaire   +3 more sources

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Numerical investigation of driving forces in a geyser event using a dynamic multi-phase Navier–Stokes model

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
A geyser is an explosive flow of air–water mixture shooting out of a manhole. It has been demonstrated experimentally that the releasing motion of confined air pockets in a dropshaft is the key mechanism to trigger a geyser.
Zhiyu S. Shao, Scott A. Yost
doaj   +1 more source

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