Enhancement of laminar natural convective heat transfer in concentric annuli with radial fins using nanofluids

被引：32

作者：

Arbaban, M. ^{[1
]}

Salimpour, M. R. ^{[2
]}

机构：

[1] Islamic Azad Univ, Najafabad Branch, Dept Mech Engn, Najafabad, Iran

[2] Isfahan Univ Technol, Dept Mech Engn, Esfahan 8415683111, Iran

来源：

HEAT AND MASS TRANSFER | 2015年 / 51卷 / 03期

关键词：

PREDICTION;

D O I：

10.1007/s00231-014-1380-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In the present study, laminar natural convection of nanofluids confined between two horizontal concentric cylinders with eight radial fins attached to the inner cylinder is studied. Governing equations are solved using the finite volume method. The computations are performed for various Rayleigh numbers, nanofluids and volume fractions of nanoparticles. From the results, it is found that the average Nusselt number enhances when volume fraction and thermal conductivity of nanoparticles increases. Also, it is observed that the average Nusselt number of Cu-water nanofluid is highest among the nanofluids of the present study. Moreover, it is seen that the temperature gradient and absolute value of stream function decrease by addition of nanoparticles.

引用

页码：353 / 362

页数：10

共 50 条

[1] Enhancement of laminar natural convective heat transfer in concentric annuli with radial fins using nanofluids
M. Arbaban
M. R. Salimpour
Heat and Mass Transfer, 2015, 51 : 353 - 362
[2] Natural convection heat transfer enhancement in horizontal concentric annuli using nanofluids
Abu-Nada, E.
Masoud, Z.
Hijazi, A.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2008, 35 (05) : 657 - 665
[3] EFFECTS OF RADIAL FINS ON THE LAMINAR NATURAL CONVECTION OF A NANOFLUID IN CONCENTRIC ANNULI
Sheikhzadeh, G. A.
Arbaban, M.
Arefmanesh, A.
COMPUTATIONAL THERMAL SCIENCES, 2012, 4 (02): : 151 - 158
[4] HEAT TRANSFER ENHANCEMENT IN LAMINAR CONVECTIVE HEAT TRANSFER WITH NANOFLUIDS
Ozerinc, S.
Kakac, S.
Yazicioglu, A. G.
TMNN-2010 - PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON THERMAL AND MATERIALS NANOSCIENCE AND NANOTECHNOLOGY, 2011,
[5] Convective heat transfer coefficients in concentric annuli
Dirker, J
Meyer, JP
HEAT TRANSFER ENGINEERING, 2005, 26 (02) : 38 - 44
[6] ENHANCEMENT OF FORCED CONVECTIVE HEAT TRANSFER IN NARROW CONCENTRIC ANNULI BY TURBULENCE PROMOTERS
Ichimiya, Koichi
Hasegawa, Shu
EXPERIMENTAL HEAT TRANSFER, 1987, 1 (03) : 205 - 222
[7] LAMINAR CONVECTIVE HEAT TRANSFER OF NANOFLUIDS IN A MICROCHANNEL HEAT SINK WITH INTERNAL LONGITUDINAL FINS.
Sanchez, J. H.
Ortiz, J. C.
LATIN AMERICAN APPLIED RESEARCH, 2013, 43 (02) : 173 - 179
[8] Convective heat transfer of nanofluids in a concentric annulus
Yang, C.
Li, W.
Nakayama, A.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2013, 71 : 249 - 257
[9] Laminar natural convection of Cu-water nanofluid in concentric annuli with radial fins attached to the inner cylinder
G. A. Sheikhzadeh
M. Arbaban
M. A. Mehrabian
Heat and Mass Transfer, 2013, 49 : 391 - 403
[10] Numerical study of laminar natural convection of Cu-water nanofluid in concentric annuli with four radial fins
Sheikhzadeh, G. A.
Arbaban, M.
INTERNATIONAL JOURNAL OF ENGINEERING SYSTEMS MODELLING AND SIMULATION, 2012, 4 (03) : 138 - 144

← 1 2 3 4 5 →