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首页> 外文期刊>Journal of Heat Transfer >Thermal-Fluid Phenomena Induced by Nanosecond-Pulse Heating of Materials in Water
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Thermal-Fluid Phenomena Induced by Nanosecond-Pulse Heating of Materials in Water

机译:纳秒脉冲加热水中的材料引起的热流体现象

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摘要

Thermal-hydraulic phenomena adjacent to the liquid metal-water and solid material- water interfaces induced by nanosecond pulsed Nd:YAG laser (wavelength: 532 nm, FWHM: ~13 ns) heating with the fluence F of 5.0×10~1~1.0×10~3 mJ/cm~2 were experi- Mentally investigated. By applying the high-speed photography with a frame speed up to 2.0×10~7 fps, the aspects of the bubble formation, shock wave generation and propaga- tion were observed. The bubble formation on the heated material's surface of about 80 nm in diameter was detected in Si-water system from the time-resolved reflection (TRR) signal by applying the pump and probe method.
机译:纳秒脉冲Nd:YAG激光(波长:532 nm,FWHM:〜13 ns)加热,注量F为5.0×10〜1〜1.0时,在液态金属-水和固态材料-水界面附近产生热工现象。实验研究了×10〜3 mJ / cm〜2。通过以高达2.0×10〜7 fps的帧速应用高速摄影,可以观察到气泡形成,冲击波产生和传播等方面。在硅水系统中,通过应用泵和探针法从时间分辨反射(TRR)信号中检测到直径约80 nm的加热材料表面上的气泡形成。

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