Study on dynamic characteristics of the bladder fluid pulsation attenuator based on dynamic mesh technology
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-019-0215-3
Abstract: Fluid-flow and pressure fluctuation are main causes of vibration and noise in liquid-conveying pipeline. As a crucial auxiliary component of liquid-conveying pipeline, the bladder pressure fluctuation attenuator plays an important role in absorbing fluctuations. According… read more here.
Keywords: pipeline; pressure; dynamic mesh; attenuator ... See more keywords
Reduction of shrinkage porosities in aluminum alloy castings by external pressure fluctuation under gravity field
Sign Up to like & getrecommendations! Published in 2018 at "China Foundry"
DOI: 10.1007/s41230-018-7247-7
Abstract: A novel method to improve the feeding capacity of ZL205A alloy castings by pressure fluctuation during its solidification process under gravity field was proposed. The experiments were done in the graphite mould by applying the… read more here.
Keywords: field; feeding capacity; pressure fluctuation; alloy castings ... See more keywords
Analysis and control optimization of positive pressure fluctuation in electromechanical oxygen regulator
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2020.12.007
Abstract: Abstract The Electromechanical Oxygen Regulator (EMOR) is a new type of aviator oxygen equipment. Positive pressure refers to the pressure difference between the breath pressure and the ambient pressure during pressurized oxygen supply. The phenomenon… read more here.
Keywords: positive pressure; control; pressure; oxygen ... See more keywords
Estimation of the minimum spouting velocity based on pressure fluctuation analysis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The Taiwan Institute of Chemical Engineers"
DOI: 10.1016/j.jtice.2020.08.022
Abstract: Abstract Pressure fluctuation analysis has been used to identify different flow regimes in spouted beds. Although this is a promising cost-effective tool for process control and design purposes, it has hardly been used in spouted… read more here.
Keywords: minimum spouting; pressure fluctuation; fluctuation analysis; pressure ... See more keywords
A numerical study of the bubble induced pressure fluctuation in gas-fluidized beds
Sign Up to like & getrecommendations! Published in 2017 at "Powder Technology"
DOI: 10.1016/j.powtec.2016.08.059
Abstract: Abstract Pressure fluctuation analysis has been widely accepted as an efficient way for bubble size estimation in fluidized beds since the local bubble induced pressure fluctuation, which is believed to be a function of bubble… read more here.
Keywords: pressure fluctuation; induced pressure; bubble induced; bubble size ... See more keywords
Statistical and frequency analysis of pressure fluctuation in an annular spouted bed of coarse particles
Sign Up to like & getrecommendations! Published in 2017 at "Powder Technology"
DOI: 10.1016/j.powtec.2017.05.007
Abstract: Abstract The pressure fluctuation characteristics of an annular spouted bed filled with coarse particles were studied by statistical and frequency analysis. The effects of spouting gas velocity, static bed height, and measuring point height on… read more here.
Keywords: annular spouted; pressure fluctuation; coarse particles; spouted bed ... See more keywords
Numerical study on pressure fluctuation of a multistage centrifugal pump based on whole flow field
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5049196
Abstract: Multistage centrifugal pumps can provide high-pressure fluid flow, and is widely used in various engineering applications. However, the pressure fluctuation in the pumps strongly affects the flow and pressure stability. To gain further insight into… read more here.
Keywords: multistage centrifugal; pressure fluctuation; impeller; pressure ... See more keywords
Experimental investigation of pressure fluctuation on the bed of compound flip buckets
Sign Up to like & getrecommendations! Published in 2018 at "ISH Journal of Hydraulic Engineering"
DOI: 10.1080/09715010.2017.1344572
Abstract: Abstract In this study, pressure fluctuation and also the effect of entrance flow conditions on the pressure fluctuation on the bed of compound flip buckets used in the Gotvand dam in Iran are investigated experimentally.… read more here.
Keywords: compound flip; pressure fluctuation; bed compound; fluctuation bed ... See more keywords
Pressure fluctuation characteristics in the sidewall gaps of a centrifugal dredging pump
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Computations"
DOI: 10.1108/ec-12-2015-0383
Abstract: Purpose The purpose of this paper is to study the pressure fluctuation characteristics in the sidewall gaps of a centrifugal dredging pump in detail and discover the excitation sources. Design/methodology/approach An unsteady numerical simulation with… read more here.
Keywords: pressure fluctuation; sidewall gaps; fluctuation characteristics; characteristics sidewall ... See more keywords
Distinctive Features of Pressure Fluctuation Fields on the Surface of Steps
Sign Up to like & getrecommendations! Published in 2018 at "Fluid Dynamics"
DOI: 10.1134/s0015462818060186
Abstract: Parametric experimental investigations of the fields of turbulent wall pressure fluctuations on the surface of steps are performed. A considerable effect of the obstacle height on the spectral composition of the pressure fluctuations behind the… read more here.
Keywords: fluctuation fields; surface steps; pressure fluctuation; distinctive features ... See more keywords
A Novel Multidimensional Frequency Band Energy Ratio Analysis Method for the Pressure Fluctuation of Francis Turbine
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Problems in Engineering"
DOI: 10.1155/2018/3494785
Abstract: The pressure fluctuation has multiple influence on the steady operation of Francis turbine, and the impact degree varies with the operation condition. In this paper, for the analysis of pressure fluctuation in the Francis turbine,… read more here.
Keywords: frequency; pressure fluctuation; francis turbine; energy ratio ... See more keywords