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| 1 | Implicit large eddy simulation of unsteady cloud cavitation around a plane-convex hydrofoil显示文摘The present paper focuses on the erosive cavitation behavior around a plane convex hydrofoil. The Zwart-Gerber-Belamri cavitation model is implemented in a library form to be used with the OpenFOAM. The implicit large eddy simulation(ILES) is applied to analyze the three-dimensional unsteady cavitating flow around a plane convex hydrofoil. The numerical results in the cases under the hydrodynamic conditions, which were experimentally tested at the high speed cavitation tunnel of the école Polytechnique Fédérale de Lausanne(EPFL), clearly show the sheet cavitation development, the shedding and the collapse of vapor clouds. It is noted that the cavitation evolutions including the maximum vapor length, the detachment and the oscillation frequency, are captured fairly well. Furthermore, the pressure pulses due to the cavitation development as well as the complex vortex structures are reasonably well predicted. Consequently, it may be concluded that the present numerical method can be used to investigate the unsteady cavitation around hydrofoils with a satisfactory accuracy. | HIDALGO Victor 罗先武 ESCALER Xavier 季斌 AGUINAGA Alvaro | 2015 | Journal of Hydrodynamics2015，27，6： | 5 |
| 2 | Detection of cavitation in hydraulic turbines显示文摘 | Xavier Escaler Eduard Egusquiza Mohamed Farhat Fran?ois Avellan Miguel Coussirat | 2004 | Mechanical Systems and Signal Processing2004，，4： | 2 |
| 3 | Detection of cavitation in hydraulic turbines显示文摘 | Xavier Escaler Eduard Egusquizaa Mohamed Farhat | 2006 | Mechanical Systems and Signal Processing2006，20，4： | 1 |
| 4 | Detection of cavitation in hydraulic turbines显示文摘 | Xavier Escaler Eduard Egusquiza Mohamed Farhat | 2006 | Mechanical Systems and Signal Processing2006，20，： | 1 |
| 5 | On the design of an ECOC-eompliant genetic algorithm显示文摘 | Miguel A B Escaler S Xavier B | 2014 | Pattern Recognition2014，47，8： | 1 |
| 6 | Detection of cavitation in hydraulic turbines 显示文摘 | Xavier Escaler Eduard Egusquza Mohamed Farhat | 2006 | Mechanical Systems and Signal Processing2006，，20： | 1 |
| 7 | Detecti on of cavitati on in hydraulic tur- bines 显示文摘 | Xavier Escaler Eduard Egusquizaa Mohamed Far- hat | 2006 | Mechanical Systems and Signal Processing2006，20，4： | 1 |
| 8 | Detection of cavitation in hydraulic turbines显示文摘 | Xavier Escaler Eduard Egusquizaa Mohamed Farhat | 2006 | Mechanical Systems and Signal Processing2006，20，4： | 1 |
| 9 | 根据空化引起的水轮机振动来预测空蚀破坏显示文摘通过在水轮机主轴上进行遥控振动测量的方法,对改善水轮机空蚀破坏的预测方法进行了尝试。为此,选择了两台相似的水轮机进行对比试验。其中一台水轮机的所有转轮叶片上都发生了及其严重的空蚀破坏。而另一台则根本没有空化发生。在两台水轮机主轴上都安装了微型遥测装置,以便将便携式加速度传感器的测量信号传送到无线接收装置上。同时,也在诸如导轴承和导叶等水轮机固定部件上进行了测量。首先,对试验结果的分析证明了上述方法的有效性。然后对以主轴的振动情况来预测发生在水轮机转轮叶片上的空蚀破坏是否较在导轴承处测量具有优势进行了讨论。 | Xavier Escaler 赵英男(译) 赵越(校) | 2006 | 国外大电机2006，，4： | 0 |
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