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首页> 外文期刊>Journal of Heat Transfer >Bubble Nucleation on Micro Line Heaters
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Bubble Nucleation on Micro Line Heaters

机译:微型管线加热器上的气泡成核

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Nucleation temperatures on micro line heaters were measured precisely by obtaining the I-R (current-resistance) characteristic curves of the heaters. The bubble nucleation temperature on the heater with 3μm width is higher than the superheat limit, while the temperature on the heater with broader width of 5μm is considerably less than the superheat limit. The nucleation temperatures were also estimated by using the molecular cluster model for bubble nucleation on the cavity free surface with effect of contact angle. The bubble nucleation process was observed by microscope/35 mm camera unit with a flash light of μs duration.
机译:通过获得加热器的I-R(电流电阻)特性曲线,可以精确测量微线加热器上的成核温度。宽度为3μm的加热器上的气泡成核温度高于过热极限,而宽度为5μm的较宽加热器上的气泡成核温度明显低于过热极限。还通过使用分子簇模型在接触角的影响下,利用腔室自由表面上气泡成核的分子簇模型来估计成核温度。气泡成核过程是用显微镜/ 35 mm摄像头装置以持续时间为μs的闪光灯观察到的。

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