纳米流体传质扩散系数的测定

工程热物理学报 , 2011, 32(2): 277-280.

1.南京理工大学动力工程学院,江苏南京210094

2.南京理工大学动力工程学院,江苏南京210094

3.南京理工大学动力工程学院,江苏南京210094

基金项目: 国家自然科学基金资助项目(50436020)

MEASUREMENTS OF MASS DIFFUSIVITY OF NANOFLUIDS

本文建立光学实验测试系统,测量了不同温度条件下罗丹明B在不同粒子体积份额的纳米流体(Cu-乙二醇和Cu-水)中的质扩散系数.实验结果表明:罗丹明B在纳米流体中的扩散系数大于其在基液中的扩散系数,且扩散系数随着粒子体积份额的增大而增大;当粒子体积份额一定时,扩散系数随着温度的升高而增大.

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