Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Computational Thermal Sciences: An International Journal
ESCI SJR: 0.244 SNIP: 0.434 CiteScore™: 0.7

ISSN Print: 1940-2503
ISSN Online: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2016017026
pages 291-308

FLOW AND HEAT TRANSFER SIMULATION OF THREE DIFFERENT NANOFLUIDS IN A CAVITY WITH SINUSOIDAL BOUNDARY CONDITIONS UNDER THE INFLUENCE OF AN INCLINED MAGNETIC FIELD USING LBM: A PHASE DEVIATION APPROACH

Amir Javad Ahrar
Department of Mechanical Engineering, Faculty of Sadooghi, Yazd Branch, Technical and Vocational University (TVU), Yazd, Iran
Mohammad Hassan Djavareshkian
Ferdowsi University of Mashhad, Iran

ABSTRACT

In the present study, a nanofluid-filled cavity with sinusoidal temperature boundary condition under the influence of an inclined magnetic field was investigated numerically. The lattice Boltzmann method (LBM) was applied to simulate the nanofluid flow with water as the carrier fluid and for three different nanoparticle types: Al2O3, Cu, and TiO2. More than 1100 individual tests were carried out in this work to show the combined effect of the nanoparticles and magnetic field situations. It goes without saying that nanoparticles are meant to improve the heat transfer rate, because unlike the magnetic field they are not present in any system on their own, but they're added manually to enhance the Nusselt number. However, it is seen that in some magnetic situations (field intensity and direction) adding the volume fraction of nanoparticles cannot help the heat transfer increment. The flow and heat transfer behavior of these three nanofluids were observed for different Rayleigh numbers (103−106), Hartmann numbers (0−80), nanoparticle volume fraction (0−6%), magnetic field direction θ = 0−90°, and temperature boundary condition phase deviation γ = 0−90°. The results indicated that the influence of nanoparticles for this geometry and boundary conditions is highly dependent on the Rayleigh and Hartmann numbers. Although the magnetic field direction plays an unimportant role in lower Rayleigh numbers, the effects will become most significant for moderate Rayleigh numbers like 105.


Articles with similar content:

NUMERICAL STUDY OF NATURAL CONVECTION HEAT TRANSFER PERFORMANCE IN AN INCLINED CAVITY WITH COMPLEX-WAVY-WALL: NANOFLUID AND RANDOM TEMPERATURE
Computational Thermal Sciences: An International Journal, Vol.7, 2015, issue 1
Hicham Salhi, Djamel Haddad, Mohamed Si-Ameur
EFFECTS OF HEAT FLUX ON NATURAL CONVECTION OF WATER-BASED NANOFLUIDS IN A TRAPEZOIDAL ENCLOSURE
Heat Transfer Research, Vol.49, 2018, issue 13
Xiaofeng Wang, Weizhong Dai, Juntao Wang
NUMERICAL STUDY ON THE EFFECT OF MAGNETIC FIELD IN A POROUS ENCLOSURE USING NANOFLUID WITH MID-HORIZONTAL MOVING LID: BRINKMAN-FORCHHEIMER EXTENDED DARCY MODEL
Journal of Porous Media, Vol.21, 2018, issue 5
N. Nithyadevi, A. Shamadhani Begum
SIMULATION OF NATURAL CONVECTION OF NANOFLUIDS AT HIGH RAYLEIGH NUMBERS: A TWO-COMPONENT LATTICE BOLTZMANN STUDY
Computational Thermal Sciences: An International Journal, Vol.8, 2016, issue 1
Mehdi Hosseini Abadshapoori, Mohammad Hassan Saidi
NATURAL CONVECTION IN A NANOFLUID-FILLED SQUARE CAVITY WITH AN ARC-SHAPED HEATED BAFFLE
Computational Thermal Sciences: An International Journal, Vol.4, 2012, issue 2
Ali Akbar Abbasian Arani, Ehsan Roohi