Autor: Zhu, Yanyan - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Finite Element Treatment of Vortex States in 3D Mesoscopic Cylindrical Superconductors in a Tilted Magnetic Field
Autorzy:: Peng, Lin
Hu, Yahua
Li, Zhijian
Deng, Ke
Zhu, Yanyan
Xu, Li
Zhou, Yun
Powiązania:: https://bibliotekanauki.pl/articles/1030584.pdf
Data publikacji:: 2018-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: three-dimensional mesoscopic cylinders
TDGL equations
finite element method
vortex states
Opis:: The time-dependent Ginzburg-Landau equations have been solved numerically by a finite element analysis for the mesoscopic superconducting samples with cylindrical shape in a uniform axial magnetic field. We obtain the different vortex patterns as a function of the applied field perpendicular to its surface. We find that multi-vortex states are ground state in three-dimensional mesoscopic cylinders. These results show that our approach is an effective and useful to interpret experimental data on vortex states in the mesoscopic superconductors.
Źródło:: Acta Physica Polonica A; 2018, 133, 1; 152-156
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effects of U-shaped two-step throttling groove parameters on cavitation erosion characteristics
Autorzy:: Jia, Wenhua
Liu, Yanyan
Yin, Chenbo
Li, Guo
Zhu, Dasheng
Ding, Shen
Powiązania:: https://bibliotekanauki.pl/articles/2055063.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: avitation erosion
throttling groove
distribution coefficient
Opis:: Throttling usually occurs when a fluid passes through an orifice, sometimes even severe cav- itation erosion may occur. In this study, the equation for the cavitation index of a throttling valve was proposed and the cavitation erosion area in the throttle valve was found to change its position with the orifice opening (X). Cavitation features of singular and two-port se- ries throttling grooves were characterized by defining cavitation indexes σ1and σ2, because the cavitation index-σ can determine the occurrence and intensity of cavitation. Then the indexes σ1 and σ2 included internal geometric parameters and external pressure boundaries were obtained, and cavitation indexes curves σ1-X and σ2-X were also plotted. From the curves of the cavitation index, it was observed that cavitation concentration section also would transfer with opening X changes in the U-shaped groove. The depth of the U-shaped groove had a more evident impact on cavitation, whereas the effect of width on cavitation erosion was not so obvious. The intensity of cavitation erosion when the fluid flowed into the orifice section of the U-shaped groove was always larger than that when the fluid flowed away.
Źródło:: Journal of Theoretical and Applied Mechanics; 2021, 59, 4; 529--538
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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