Results 11 to 20 of about 20,946 (263)

Numerical Study on Internal flow Field Dynamic Performance of Scramjet [PDF]

MATEC Web of Conferences, 2019
The pressure pulsation caused by the combustion of the combustion chamber of the scramjet engine has a great influence on the flow and performance of the inlet.
Gao Feng, Zhao Jie, Chen Feng Li
doaj   +1 more source

Stability Analysis of Vaneless Space in High-Head Pump-Turbine under Turbine Mode: Computational Fluid Dynamics Simulation and Particle Imaging Velocimetry Measurement

Machines, 2022
When the Francis-type reversible pump-turbine runs under partial load, the pressure pulsation amplitude and frequency in vaneless space are high, posing a serious threat to the stability of unit operation.
Wanquan Deng, Lianchen Xu, Zhen Li, Wen Tang, Xiaolong Wang, Linmin Shang, Demin Liu, Xiaobing Liu   +7 more
doaj   +1 more source

Numerical and Experimental Analysis of Pressure Pulsation Attenuator Based on Helmholtz Resonator

Applied Sciences, 2023
Due to the development of aviation hydraulic systems towards high pressure and high flow, the frequency range of pressure pulsation becomes wider, and the amplitude of pulsation increases.
Shenghao Zhou, Hangyu Jiao, Dongxu Liu, Weizhen Liu, Junzhe Lin, Qingkai Han, Zhong Luo   +6 more
doaj   +1 more source

Influence of blade trailing edge profile on unsteady pressure pulsations in a multistage centrifugal pump

Energy Science & Engineering, 2023
Changing the shape of the blade trailing edge profile of a centrifugal pump is one of the effective means to improve the internal unsteady flow and pressure pulsation of a centrifugal pump.
Bao‐Ling Cui, Fu‐You Sun, Yu‐Liang Zhang, Jin‐Xin Liu, Jun‐Jian Xiao   +4 more
doaj   +1 more source

Radiation pressure and pulsation effects on the Roche lobe [PDF]

Astronomy & Astrophysics, 2009
11 pages, 13 Postscript ...
Dermine, Tijl, Jorissen, Alain, Siess, Lionel, Frankowski, Adam   +3 more
openaire   +3 more sources

Retinal Vein Pulsation is in Phase with Intracranial Pressure and not Intraocular Pressure

Investigative Opthalmology & Visual Science, 2012
As efforts to noninvasively measure intracranial pressure (ICP) increase, we thought it important to investigate the timing of retinal venous pulsation in relation to the intraocular and intracranial pressure pulses.Neurosurgical patients undergoing continuous direct ICP monitoring had video recordings of ICP, IOP, and retinal venous pulsation ...
Jost B, Jonas, Ningli, Wang, Diya, Yang
openaire   +4 more sources

Intraocular Pressure Reduction Is Associated with Reduced Venous Pulsation Pressure

PLOS ONE, 2016
To explore whether alterations in intraocular pressure (IOP) affect vein pulsation properties using ophthalmodynamometric measures of vein pulsation pressure.Glaucoma patients had two retinal vein pulsation pressure (VPP) measurements from upper and lower hemiveins performed by ophthalmodynamometry at least 3 months apart.
Morgan, William H., House, Philip H., Hazelton, Martin L., Betz-Stablein, Brigid D., Chauhan, Balwantray C., Viswanathan, Ananth, Yu, Dao-Yi   +6 more
openaire   +7 more sources

Test and Numerical Simulation of Pressure Pulsation under the Forward and Reverse Working Conditions of a Horizontal Axial Flow Pump

Applied Sciences, 2022
In daily operation, the flow state in the runner chamber of an axial flow pump is extremely complex, and the pressure pulsation caused by the vibration of the unit and the hydraulic excitation is also extremely complex.
Yalei Bai, Donglei Wu
doaj   +1 more source

Experimental investigation of pressure pulsation induced by the floor-attached vortex in an axial flow pump

Advances in Mechanical Engineering, 2019
The pressure pulsation test in an axial flow pump with and without the floor-attached vortex was performed. Pressure sensors were mounted on the impeller inlet section and impeller outlet section and guide vane section outlet of the axial flow pump.
Xijie Song, Chao Liu
doaj   +1 more source

Effect of the Gap Matching Relation on the Pressure Pulsation Characteristics at Blade’s Surface of the Multiphase Pump

Machines, 2022
The pressure pulsation characteristics of the blade’s surface have an impact on the lifespan of the multiphase pump impeller. To explore the influence of the gap matching relation on the pressure pulsation characteristics at blade’s surface of the pump ...
Guangtai Shi, Zheyu Zhu, Binxin Wang, Haigang Wen   +3 more
doaj   +1 more source