Results 31 to 40 of about 54,048 (301)

Large-Eddy simulation of pulsatile blood flow [PDF]

, 2009
Large-Eddy simulation (LES) is performed to study pulsatile blood flow through a 3D model of arterial stenosis. The model is chosen as a simple channel with a biological type stenosis formed on the top wall.
Despande, Fry, Frydrychowicz, Fung, Ghalichi, Giles Roditi, Jones, Lee, Liang, Lieber, Malek, Manosh C. Paul, Md. Mamun Molla, Mittal, Mittal, Pedley, Pedley, Piomelli, Scotti, Smagorinsky, Stonebridge, Sutera, Younis   +22 more
core   +1 more source

Experimental Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double-Tongue Volute

Machines, 2021
A pressure pulsation experiment of a dishwasher pump with a passive rotation double-tongue volute was carried out and compared with the pressure pulsation of a single-tongue volute and a static double-tongue volute.
Yilei Zhu, Jinfeng Zhang, Yalin Li, Ping Huang, Hui Xu, Feng Zheng   +5 more
doaj   +1 more source

Radial Stellar Pulsation and 3D Convection. I. Numerical Methods and Adiabatic Test Cases [PDF]

, 2011
We are developing a 3D radiation hydrodynamics code to simulate the interaction of convection and pulsation in classical variable stars. One key goal is the ability to carry these simulations to full amplitude in order to compare them with observed light
Deupree, Robert G., Geroux, Chris M.
core   +2 more sources

Effect of wave disturbance on the fluid dynamics of the pump turbine in a seawater pumped storage hydroplant

Frontiers in Earth Science, 2023
Compared with conventional pumped-storage hydroplants, seawater pumped-storage hydroplants are constructed in a complex marine environment. The wave disturbance may affect the safety operation of the pump turbine in the seawater pumped hydroplant via ...
Jianyong Hu, Jianyong Hu, Qingbo Wang, Qingbo Wang, Hongge Song, Hongge Song, Jiahua Mao, Jiahua Mao   +7 more
doaj   +1 more source

Vibrational states and disorder in continuously compressed model glasses

, 2011
We present in this paper a numerical study of the vibrational eigenvectors of a two-dimensional amorphous material, previously deeply studied from the point of view of mechanical properties and vibrational eigen-frequencies [7-10]. Attention is paid here
Angell, Baldi, Champagnon, Chumakov, Courtens, Debye, Deschamps, F. Leonforte, Geilenkeuser, Greaves, Grigera, Gurevich, Gurevich, Hemley, Inamura, Ioffe, Leonforte, Leonforte, Lubchenko, Maurer, Monaco, Monaco, Nakayama, Niss, Oligschleger, Orsingher, Pilla, Rufflé, Rufflé, Schirmacher, Sette, Shintani, Sugai, Tanguy, Trachenko, Vainer, van Beest, Wittmer   +37 more
core   +1 more source

Pulsation-triggered mass loss from AGB stars: the 60-day critical period

, 2016
Low- and intermediate-mass stars eject much of their mass during the late, red giant branch (RGB) phase of evolution. The physics of their strong stellar winds is still poorly understood.
McDonald, Iain, Zijlstra, Albert
core   +1 more source

LES of additive and non-additive pulsatile flows in a model arterial stenosis [PDF]

, 2010
Transition of additive and non-additive pulsatile flows through a simple 3D model of arterial stenosis is investigated by using a large eddy simulation (LES) technique. We find in both the pulsatile cases that the interaction of the two shear layers, one
Fung YC, Giles Roditi, M. Mamun Molla, Manosh C. Paul, Pedley TJ, Pedley TJ   +5 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Flow Pulsation Characteristic of External Gear Pump and Analysis of Influencing Factor

Jixie chuandong, 2020
Based on the bench test of oil pump， the influence of pump outlet pressure on flow pulsation of external gear oil pump is analyzed. The results show that the flow pulsation coefficient of the oil pump decreased with the increase of pump outlet pressure ...
Liangyi Shen, Lei Qu, Biao Shen
doaj  

Driving pulsation analysis of electro-hydraulic robot

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
The hydraulic driving source plays an important role in the performance of the electro-hydraulic robot. In this paper, the Lumped parameter method is used to establish the pressure-flow characteristic model of the constant pressure variable pump of a 6 ...
Changyou ZHANG, Guangzhu CHEN, Changwei MIAO, Yingjie TANG, Nan BAI   +4 more
doaj   +1 more source