Entropy generation analysis of nanofluid flow over a spherical heat source inside a channel with sudden expansion and contraction

被引：59
|
作者：
Nouri, Davoud [1 ]
Pasandideh-Fard, Mohammad [1 ]
Oboodi, Mohammad Javad [2 ]
Mahian, Omid [3 ,4 ]
Sahin, Ahmet Z. [5 ]
机构：
[1] Ferdowsi Univ Mashhad, Dept Mech Engn, Mashhad, Iran
[2] Univ Tehran, Fac New Sci & Technol, Tehran, Iran
[3] Ferdowsi Univ Mashhad, Ctr Adv Technol, Mashhad, Iran
[4] King Mongkuts Univ Technol, Dept Mech Engn, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, FUTURE Lab, Bangkok 10140, Thailand
[5] King Fahd Univ Petr & Minerals, Mech Engn Dept, Dhahran 31261, Saudi Arabia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2018年 / 116卷
关键词：
Entropy generation; Nanofluid; Spherical heat source; Blockage ratio; Nanoparticle size; 2-PHASE MIXTURE MODEL; SOLAR COLLECTOR; NATURAL-CONVECTION; POROUS-MEDIA; AL2O3-WATER NANOFLUID; THERMAL-CONDUCTIVITY; TIO2-WATER NANOFLUID; WATER NANOFLUID; MAGNETIC-FIELD; WAVY-WALL;
D O I：
10.1016/j.ijheatmasstransfer.2017.09.097
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present paper deals with entropy generation study of CuO/water nanofluid flow over a spherical heat source that is installed inside a cylindrical channel with sudden expansion and contraction. To estimate the entropy generation rate; first, the governing equations are solved numerically to find the velocity and temperature fields in the domain where the flow is steady and laminar. Next, using the simulation data, the entropy generation number is calculated theoretically. The effects of nanofluid concentration, nanoparticle size, blockage ratio, and Reynolds number on the entropy generation have been investigated. The outcomes of this research elucidate that entropy generation number rises with an increase in the nanoparticle volume fraction and surface temperature of the heat source. On the other hand, it was found that the entropy generation is diminished by implementing finer nanoparticles and lowering the blockage ratio. In this study, a new correlation has also been presented to calculate the Nusselt number that is a function of Reynolds number, Prandtl number, and blockage ratio. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1036 / 1043
页数：8
相关论文
共 50 条
  • [1] Sensitivity Analysis of Entropy Generation in Nanofluid Flow inside a Channel by Response Surface Methodology
    Darbari, Bijan
    Rashidi, Saman
    Esfahani, Javad Abolfazli
    [J]. ENTROPY, 2016, 18 (02):
  • [2] Entropy generation analysis for the radiative flow of Sisko nanofluid with heat sink/source
    Waqas, M.
    Sunthrayuth, Pongsakorn
    Pasha, Amjad Ali
    Khan, Waqar Azeem
    Hobiny, A.
    Asghar, Zeeshan
    [J]. WAVES IN RANDOM AND COMPLEX MEDIA, 2022,
  • [3] Entropy generation in MHD nanofluid flow with heat source/sink
    Tlau, Lalrinpuia
    Ontela, Surender
    [J]. SN APPLIED SCIENCES, 2019, 1 (12)
  • [4] Entropy generation in MHD nanofluid flow with heat source/sink
    Lalrinpuia Tlau
    Surender Ontela
    [J]. SN Applied Sciences, 2019, 1
  • [5] Heat transfer and entropy generation of the nanofluid flow inside sinusoidal wavy channels
    Dormohammadi, Reza
    Farzaneh-Gord, Mahmood
    Ebrahimi-Moghadam, Amir
    Ahmadi, Mohammad Hossein
    [J]. JOURNAL OF MOLECULAR LIQUIDS, 2018, 269 : 229 - 240
  • [6] NUMERICAL SIMULATION OF NONLINEAR FLOW AND HEAT TRANSFER IN A SUDDEN EXPANSION AND CONTRACTION CHANNEL
    Yang, M.
    Yang, L. Q.
    Lu, W.
    Li, L.
    Liu, Q. X.
    Zhang, Y. W.
    [J]. PROCEEDINGS OF THE ASME 5TH INTERNATIONAL CONFERENCE ON MICRO/NANOSCALE HEAT AND MASS TRANSFER, 2016, VOL 2, 2016,
  • [7] The origin of extensional flow in a channel with sudden contraction and expansion
    Kravchenko, I. V.
    Patlazhan, S. A.
    Muller, R.
    Sultanov, V. G.
    [J]. XXXI INTERNATIONAL CONFERENCE ON EQUATIONS OF STATE FOR MATTER (ELBRUS 2016), 2016, 774
  • [8] Entropy generation analysis for nanofluid flow inside a duct equipped with porous baffles
    Shamsabadi, Hamid
    Rashidi, Saman
    Esfahani, Javad Abolfazli
    [J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2019, 135 (02) : 1009 - 1019
  • [9] Entropy generation analysis for nanofluid flow inside a duct equipped with porous baffles
    Hamid Shamsabadi
    Saman Rashidi
    Javad Abolfazli Esfahani
    [J]. Journal of Thermal Analysis and Calorimetry, 2019, 135 : 1009 - 1019
  • [10] Micropolar Nanofluid Flow in a Vertical Porous Channel: Entropy Generation Analysis
    Ontela, Surender
    Tlau, Lalrinpuia
    [J]. JOURNAL OF APPLIED NONLINEAR DYNAMICS, 2021, 10 (02) : 305 - 314
12345