Results 31 to 40 of about 133,708 (301)

Heat Transfer of Near Pseudocritical Nitrogen in Helically Coiled Tube for Cryogenic Energy Storage

Energies, 2022
This paper investigates the cryogenic heat transfer phenomena of nitrogen flowing in helically coiled tubes under the combined effects of pseudocritical conditions, buoyancy, and coil curvature. The ultimate goal was to design optimum heat exchangers for
Yi Wang, Tiejun Lu, Xianglei Liu, Adriano Sciacovelli, Yongliang Li   +4 more
doaj   +1 more source

Mechanism of Wind and Buoyancy Driving on Ventilation and Pollutant Transport in an Idealized Urban Street Canyon

Buildings
The mechanisms underlying the effects of wind and buoyancy on ventilation in urban street canyons are unclear. This study investigated the effects of facade heating on ventilation and pollutant transport in an idealized street canyon with a 1.67 aspect ...
Guoyi Jiang, Ming Wu, Hongbo Li, Yujin Wu   +3 more
doaj   +1 more source

Buoyancy effect on heat transfer in rotating smooth square U-duct at high rotation number

Propulsion and Power Research, 2014
The buoyancy effect on heat transfer in a rotating, two-pass, square channel is experimentally investigated in current work. The classical copper plate technique is performed to measure the regional averaged heat transfer coefficients.
Yang Li, Guoqiang Xu, Hongwu Deng, Shuqing Tian   +3 more
doaj   +1 more source

Entrainment Makes Pollution More Likely to Weaken Deep Convective Updrafts Than Invigorate Them

Geophysical Research Letters, 2023
Are the results of aerosol invigoration studies that neglect entrainment valid for diluted deep convective clouds? We address this question by applying an entraining parcel model to soundings from tropical and midlatitude convective environments, wherein
John M. Peters, Zachary J. Lebo, Daniel R. Chavas, Chun‐Yian Su   +3 more
doaj   +1 more source

The Southern Ocean deep mixing band emerges from a competition between winter buoyancy loss and upper stratification strength [PDF]

Ocean Science
The Southern Ocean hosts a winter deep mixing band (DMB) near the Antarctic Circumpolar Current's (ACC) northern boundary, playing a pivotal role in Subantarctic Mode Water formation.
R. Caneill, F. Roquet, J. Nycander
doaj   +1 more source

Effective buoyancy at the surface and aloft

Quarterly Journal of the Royal Meteorological Society, 2015
It is shown here that a wide, buoyant parcel of air at the surface accelerates far less rapidly than it does aloft. In particular, analytical formulae are derived for the effective buoyancy (i.e. the net vertical acceleration due to parcel buoyancy and environmental response) of idealized cylinders of diameterDand heightH, located in free space and at ...
Jeevanjee, Nadir, Romps, David M
openaire   +3 more sources

Displacement analysis and control measure evaluation of shield tunnels for long-distance pipelines crossing rivers

You-qi chuyun
ObjectiveShield tunnels are a primary method for long-distance oil and gas pipelines to cross rivers and lakes. Internal and external loads, such as temperature, transportation pressure, and buoyancy, can lead to issues like excessive displacement and ...
Wei XIONG, Sheng CHEN, Yi DU, Lei ZHANG, Weixing YOU, Xinyang ZHANG, Senlin YANG, Leige XU   +7 more
doaj   +1 more source

The effects of vertical outflows on disk dynamos [PDF]

, 2001
We consider the effect of vertical outflows on the mean-field dynamo in a thin disk. These outflows could be due to winds or magnetic buoyancy. We analyse both two-dimensional finite-difference numerical solutions of the axisymmetric dynamo equations and
A. Bardou, A. Brandenburg, A. Shukurov, B. von Rekowski, Balbus, Blackman, Brandenburg, Brandenburg, Campbell, Campbell, Elstner, Gabov, Heyvaerts, Lubow, Moss, Moss, Poezd, Pouquet, Proctor, Pudritz, Rüdiger, Sokoloff, Stepinski, Stepinski, Torkelsson, Torkelsson, Vainshtein, von Rekowski, W. Dobler   +28 more
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Junior school students’ foreign language buoyancy, enjoyment, and English achievement: Exploring the connections from a positive psychology perspective [PDF]

SHS Web of Conferences
From a positive psychology standpoint, this research investigated the relationship between foreign language buoyancy, foreign language enjoyment, and English academic achievement of 240 junior school students.
Lang Jingyu
doaj   +1 more source

Effects of Buoyancy and of Magnetic Forces on Osmotic Pressure [PDF]

Proceedings of the National Academy of Sciences, 1974
The commonly held view that the mechanism of osmotic pressure is a mass action effect at the semi-permeable membrane has recently been challenged by several authors who propose that solute molecules, in bombarding the free surface of the solution, subject the solvent to a negative hydrostatic pressure. Thus, they argue that osmotic pressure is a purely
openaire   +2 more sources