Results 81 to 90 of about 43,905 (182)

Sensitivity of Axial Velocity at the Air Gap Entrance to Flow Rate Distribution at Stator Radial Ventilation Ducts of Air-Cooled Turbo-Generator with Single-Channel Ventilation

Energies, 2019
In the design and calculation of a 330 MW water-water-air cooling turbo-generator, it was found that the flow direction of the fluid in the local stator radial ventilation duct is opposite to the design direction.
Yong Li, Weili Li, Ying Su
doaj   +1 more source

Dynamics Inside the Radio and X-ray Cluster Cavities of Cygnus A and Similar FRII Sources

, 2012
We describe approximate axisymmetric computations of the dynamical evolution of material inside radio lobes and X-ray cluster gas cavities in Fanaroff-Riley II sources such as Cygnus A.
Alexander, Black, Blandford, Carilli, Carvalho, Carvalho, Chandrasekhar, Clarke, Daly, Dursi, Feretti, Fulai Guo, Guo, Guo, Hardcastle, Hardcastle, Hodges-Kluck, Jones, Kaiser, Kataoka, Kharb, Laing, Mathews, Mathews, Mathews, O'Neill, Perley, Perlman, Scheuer, Sironi, Smith, Stawarz, Su, Tatischeff, Tingay, Vikhlinin, William G. Mathews, Wilson, Wilson, Wright, Yaji   +40 more
core   +1 more source

Backflow in Accretion Disk

, 2020
Analytical solution for a thin hydrodynamic accretion disk shows that for some values of the viscosity parameter part of the accretion flow in the disk is not towards the star, but in the opposite direction. We study thin disks by performing hydrodynamic simulations and compare the numerical with analytical results.
Mishra, Ruchi, Čemeljić, Miljenko, Kluźniak, Wlodek   +2 more
openaire   +2 more sources

Hybrid modulation strategy for minimizing backflow power under dual phase shift modulation

Energy Reports
The dual active bridge (DAB) converter is essential for direct current (DC) microgrids, providing galvanic isolation, high power density, and bidirectional power transfer.
Xiaoqian Yue, Fei Yu, Jiaming Qi, Haoyang Xue, Xinrui Pei   +4 more
doaj   +1 more source

Polymer translocation: The effect of backflow

The Journal of Chemical Physics, 2005
We investigate the effect of backflow on the translocation dynamics of short, flexible polymer chains threading through a small hole in a wall. We find that hydrodynamic interactions between polymer beads play an important role in determining the translocation time distribution: as a monomer moves through the hole it sets up a flow field which ...
Ali, I, Yeomans, J
openaire   +3 more sources

Progress in Monte Carlo calculations of Fermi systems: normal liquid 3He

, 1999
The application of the diffusion Monte Carlo method to a strongly interacting Fermi system as normal liquid $^3$He is explored. We show that the fixed-node method together with the released-node technique and a systematic method to analytically improve ...
B. L. Hammond, D. M. Ceperley, D. M. Jezek, F. Caupin, J. Boronat, J. Boronat, J. Boronat, J. C. Wheatley, J. Casulleras, J. Casulleras, J. P. Bouchaud, K. E. Schmidt, K. E. Schmidt, M. Viviani, P. E. Sokol, P. J. Reynolds, R. A. Aziz, R. A. Aziz, R. De Bruyn Ouboter, R. M. Panoff, R. P. Feynman, S. Moroni, S. Zhang   +22 more
core   +1 more source

Experimental and numerical simulation of a TPC like set up for the measurement of ion backflow

, 2017
Ion backflow is one of the effects limiting the operation of a gaseous detector at high flux, by giving rise to space charge which perturbs the electric field. The natural ability of bulk Micromegas to suppress ion feedback is very effective and can help
Attie, David, Bhattacharya, Aparajita, Bhattacharya, Deb Sankar, Bhattacharya, Purba, Bhattacharya, Sudeb, Colas, Paul, Ganjour, Serguei, Majumdar, Nayana, Mukhopadhyay, Supratik, Rout, Prasant Kumar, Sarkar, Sandip   +10 more
core  

Numerical Study on the Design of an Anti-Backflow Injector for Combustion Chambers

Energies
The backflow of high-temperature products in an engine’s combustion chamber is a key issue which can significantly reduce combustion efficiency. This is particularly problematic for hypergolic propellants, as the high-temperature products may still ...
Jie Yang, Zhengpeng Chen, Guangyu Li, Xue Geng, Bo Yuan, Yong Chen   +5 more
doaj   +1 more source

Theory of Finite Size Effects for Electronic Quantum Monte Carlo Calculations of Liquids and Solids

, 2016
Concentrating on zero temperature Quantum Monte Carlo calculations of electronic systems, we give a general description of the theory of finite size extrapolations of energies to the thermodynamic limit based on one and two-body correlation functions. We
Ceperley, David M., Clay III, Raymond C., Holzmann, Markus, Morales, Miguel A., Pierleoni, Carlo, Tubman, Norm M.   +5 more
core   +3 more sources

Backflow Power Optimization Control for Dual Active Bridge DC-DC Converters

Energies, 2017
This paper proposes optimized control methods for global minimum backflow power based on a triple-phase-shift (TPS) control strategy. Three global optimized methods are derived to minimize the backflow power on the primary side, on the secondary side and
Fei Xiong, Junyong Wu, Liangliang Hao, Zicheng Liu   +3 more
doaj   +1 more source