Effect of a Polymer Additive on Heat Transport in Turbulent Rayleigh-Benard Convection

被引：55

作者：

Ahlers, Guenter ^{[1
]}

Nikolaenko, Alexei ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 03期

基金：

美国国家科学基金会;

关键词：

DRAG REDUCTION;

D O I：

10.1103/PhysRevLett.104.034503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of heat transport, as expressed by the Nusselt number Nu, are reported for turbulent Rayleigh-Benard convection of water containing up to 120 ppm by weight of poly-[ethylene oxide] with a molecular weight of 4 x 10(6) g/mole. Over the Rayleigh number range 5 x 10(9) less than or similar to Ra less than or similar to 7 x 10(10) Nu is smaller than it is for pure water by up to 10%.

引用

页数：3

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