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

共 14 条

[1] Ahlers G., 2009, Physics, V2, P74, DOI [DOI 10.1103/PHYSICS.2.74, 10.1103/Physics.2.74]
[2] Heat transfer and large scale dynamics in turbulent Rayleigh-Benard convection
Ahlers, Guenter
Grossmann, Siegfried
Lohse, Detlef
[J]. REVIEWS OF MODERN PHYSICS, 2009, 81 (02) : 503 - 537
[3] High Rayleigh number turbulent convection in a gas near the gas-liquid critical point
Ashkenazi, S
Steinberg, V
[J]. PHYSICAL REVIEW LETTERS, 1999, 83 (18) : 3641 - 3644
[4] Effect of Polymer Additives on Heat Transport in Turbulent Thermal Convection
Benzi, Roberto
Ching, Emily S. C.
De Angelis, Elisabetta
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (02)
[5] Heat transport in turbulent Rayleigh-Benard convection: Effect of finite top- and bottom-plate conductivities
Brown, E
Nikolaenko, A
Funfschilling, D
Ahlers, G
[J]. PHYSICS OF FLUIDS, 2005, 17 (07) : 1 - 10
[6] Torsional oscillations of the large-scale circulation in turbulent Rayleigh-Benard convection
Funfschilling, Denis
Brown, Eric
Ahlers, Guenter
[J]. JOURNAL OF FLUID MECHANICS, 2008, 607 : 119 - 139
[7] Small-Scale Properties of Turbulent Rayleigh-Benard Convection
Lohse, Detlef
Xia, Ke-Qing
[J]. ANNUAL REVIEW OF FLUID MECHANICS, 2010, 42 : 335 - 364
[8] DRAG REDUCTION BY ADDITIVES
LUMLEY, JL
[J]. ANNUAL REVIEW OF FLUID MECHANICS, 1969, 1 : 367 - &
[9] Colloquium: Theory of drag reduction by polymers in wall-bounded turbulence
Procaccia, Itamar
L'vov, Victor S.
Benzi, Roberto
[J]. REVIEWS OF MODERN PHYSICS, 2008, 80 (01) : 225 - 247
[10] Rubinstein M., 2003, Polymer Physics, V23

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