Results 21 to 30 of about 1,884,735 (296)

Modification of the cast concrete mixture by air-entraining agents

Инженерно-строительный журнал, 2015
The paper investigates the combined effect of superplasticizer based on the naphthalene lignosulfonate and the air-entraining surfactant agent on the fluidity, connectivity and air entrainment of concrete.
N.I. Vatin, Yu.G. Barabanshchikov, M.V. Komarinskiy, S.I. Smirnov   +3 more
doaj   +1 more source

Surface oxide film entrainment mechanisms in shape casting running systems [PDF]

, 2009
During the transient phase of filling a casting running system, surface turbulence can cause the entrainment of oxide films into the bulk liquid. Research has shown that these are detrimental to the material’s integrity.
Green, N. R., Jolly, Mark R., M.R. Jolly, Jolly, Mark, Reilly, C., Reilly, C, N.R. Green, C. Reilly, Green, Nicholas; id_orcid   +8 more
core   +1 more source

Lateral entrainment rate in shallow cumuli: Dependence on dry air sources and probability density functions

Geophysical Research Letters, 2012
Entrainment processes in convective clouds often occur stochastically and entrainment rate estimates depend on the distance from the cloud from which the dry air is entrained.
Chunsong Lu, Yangang Liu, Shengjie Niu, Andrew M. Vogelmann   +3 more
doaj   +1 more source

Hydraulic Performance of Wave-Type Flow at a Sill-Controlled Stilling Basin

Applied Sciences, 2023
Downstream of the sluice gate or weir, wave-type flows inevitably occur in stilling basins with no tailwater. This paper aims to investigate the hydraulic performance of wave-type flows at a sill-controlled stilling basin through experimental research ...
Yu Zhou, Jianhua Wu, Hai Zhao, Jianyong Hu, Fuqing Bai   +4 more
doaj   +1 more source

Microstructure measurements and estimates of entrainment in the Denmark Strait overflow plume [PDF]

, 2013
To examine processes controlling the entrainment of ambient water into the Denmark Strait overflow (DSO) plume/gravity current, measurements of turbulent dissipation rate were carried out by a quasi-free-falling (tethered) microstructure profiler (MSP ...
V. Paka, B. Rudels, D. Quadfasel, A. Korzh, Quadfasel, D., Rudels, B., Delisi, D., D. Delisi, V. Zhurbas, Zhurbas, V., Paka, V., Korzh, A.   +11 more
core   +1 more source

An Observational Study of Entrainment Rate in Deep Convection

Atmosphere, 2015
This study estimates entrainment rate and investigates its relationships with cloud properties in 156 deep convective clouds based on in-situ aircraft observations during the TOGA-COARE (Tropical Ocean Global Atmosphere Coupled Ocean Atmosphere Response ...
Xiaohao Guo, Chunsong Lu, Tianliang Zhao, Guang J. Zhang, Yangang Liu   +4 more
doaj   +1 more source

Turbulent Characteristics and Air Entrainment Patterns in Breaking Surge Waves

Fluids, 2021
Breaking surge waves are highly turbulent three-dimensional (3D) flows, which occur when the water flow encounters a sudden change in depth or velocity.
Zhuoran Li, Akash Venkateshwaran, Shooka Karimpour   +2 more
doaj   +1 more source

Numerical investigation of air-entrainment in skimming flow over stepped spillways

Theoretical and Applied Mechanics Letters, 2016
As a widely used flood energy dissipator, the stepped spillway can significantly dissipate the kinetic or hydraulic energy due to the air-entrainment in skimming flow over the steps.
Jiemin Zhan, Jianbo Zhang, Yejun Gong
doaj   +1 more source

Air-entraining cerment and air-entrained concrete

Materiales de Construcción, 1950
No ...
openaire   +3 more sources

Air entrainment in angled dip coating

, 1998
YesThe coating flow examined here, labelled angled dip coating, is that where a substrate enters a pool of liquid forming an angle ß with the vertical so that it intersects the liquid along a wetting line which is not perpendicular to the direction of ...
Cohu, O., Benkreira, Hadj
core   +1 more source