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发表于 2005-6-8 14:02:04
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[原创]请教各位大虾,做风洞流场实验用什么粒子比较合适啊
PSL (Polystyrene Latex), 聚苯乙烯乳胶
Density: 1.05 g/ml, Refraction index: 1.59 (20°C)
Deficiency:burned and interfered with instrumentation
Glycerin, 甘油(丙三醇)
Density: (20°C/4°C) 1.2613, Refraction index: (20°C/D) 1.47
DOP (Dioctyl Phthalate), 邻苯二甲酸二辛酯
Density: 0.983-0.985 g/ml (20°C), Refraction index: 1.486-1.487 (20°C)
Deficiency:teratogen (致畸剂,畸胎剂)
Propylene Glycol, 丙二醇
Density: 1.0597 g/ml (20°C), Refraction index: 1.4398 (20°C)
Deficiency:有毒,多喝水
Silicon Oil, 硅油 (种类很多)
Density: 接近1 , Refraction index: 1.4~1.5 (苯甲基硅油的折光率较高,>1.47, 20°C)
Deficiency:
Olive Oil, 橄榄油
Density: , Refraction index:
Deficiency:polydisperse (分散性大)
其它植物油
我们用丙二醇很好,其它的可以试一下,都有运用
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