Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations

Cilt: 22 5 Ekim 2018
  • Önder Türk
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Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations

Öz

In this study, a Chebyshev spectral collocation method (CSCM) approximation is proposed for solving the full magnetohydrodynamics (MHD) equations coupled with energy equation. The MHD flow is two-dimensional, unsteady, laminar and incompressible, and the heat transfer is considered using the Boussinesq approximation for thermal coupling. The flow takes place in a square cavity which is subjected to a vertically applied external magnetic field, and the presence of the induced magnetic field is also taken into account due to the electrical conductivity of the fluid. The governing equations given in terms of stream function, vorticity, temperature, magnetic stream function, and current density, are solved iteratively using CSCM for the spatial discretisation, and an unconditionally stable backward difference scheme for the time integration. The induced magnetic field is obtained by means of its relation to the magnetic stream function. The behaviours of the flow and the heat transfer are investigated for varying values of Reynolds ($Re$), magnetic Reynolds ($Rem$), Rayleigh ($Ra$) and Hartmann ($Ha$) numbers.

Anahtar Kelimeler

Kaynakça

  1. [1] Ece, M. C., Büyük, E. 2007. FEM solution of natural convection flow in square enclosures under magnetic field., Meccanica, 42, 435-449.
  2. [2] Colaço, M. J., Dulikravich, G. S., Orlande, H.R.B. 2009. Magnetohydrodynamic simulations using radial basis functions. International Journal of Heat and Mass Transfer, 52, 5932-5939.
  3. [3] Mramor, K., Vertnik, R., Sarler, B. 2013. Simulation of Natural Convection Influenced by Magnetic Field with Explicit Local Radial Basis Function Collocation Method. CMES: Computer Modeling in Engineering & Sciences, 92, 327-352.
  4. [4] Oztop, H. F., Al-Salem, K., Pop, I. 2011. MHD Mixed Convection in a Lid-driven Cavity with Corner Heater. International Journal of Heat and Mass Transfer, 54, 3494-3504.
  5. [5] Al-Salem, K., Öztop, H. F., Pop, I., Varol, Y. 2011. Effects of moving lid direction on MHD mixed convection in a linearly heated cavity. International Journal of Heat and Mass Transfer, 55, 1103-1112.
  6. [6] Türk, Ö., Tezer-Sezgin, M. 2013. Natural convection flow under a magnetic field in an inclined square enclosure differentialy heated on adjacent walls. International Journal of Numerical Methods for Heat & Fluid Flow, 23, 844-866.
  7. [7] Sarris, I. E., Zikos, G. K., Grecos, A. P., Vlachos, N. S. 2006. On the Limits of Validity of the Low Magnetic Reynolds Number Approximation in MHD Natural Convection Heat Transfer. Numerical Heat Transfer, Part B: Fundamentals, 50, 157-180.
  8. [8] Şentürk, K., Tessarotto, M., Aslan, N. 2009. Numerical solutions of liquid metal flows by incompressible magneto-hydrodynamics with heat transfer. International Journal for Numerical Methods in Fluids, 60(2009), 1200-1221.

Ayrıntılar

Birincil Dil

Türkçe

Konular

-

Bölüm

-

Yazarlar

Önder Türk Bu kişi benim

Yayımlanma Tarihi

5 Ekim 2018

Gönderilme Tarihi

14 Mayıs 2018

Kabul Tarihi

-

Yayımlandığı Sayı

Yıl 2018 Cilt: 22

Kaynak Göster

APA
Türk, Ö. (2018). Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 22, 355-366. https://izlik.org/JA66DD45BW
AMA
1.Türk Ö. Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22:355-366. https://izlik.org/JA66DD45BW
Chicago
Türk, Önder. 2018. “Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 (Ekim): 355-66. https://izlik.org/JA66DD45BW.
EndNote
Türk Ö (01 Ekim 2018) Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 355–366.
IEEE
[1]Ö. Türk, “Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations”, Süleyman Demirel Üniv. Fen Bilim. Enst. Derg., c. 22, ss. 355–366, Eki. 2018, [çevrimiçi]. Erişim adresi: https://izlik.org/JA66DD45BW
ISNAD
Türk, Önder. “Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 (01 Ekim 2018): 355-366. https://izlik.org/JA66DD45BW.
JAMA
1.Türk Ö. Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22:355–366.
MLA
Türk, Önder. “Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, c. 22, Ekim 2018, ss. 355-66, https://izlik.org/JA66DD45BW.
Vancouver
1.Önder Türk. Chebyshev Spectral Collocation Method Approximation to Thermally Coupled MHD Equations. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. [Internet]. 01 Ekim 2018;22:355-66. Erişim adresi: https://izlik.org/JA66DD45BW

e-ISSN :1308-6529
Linking ISSN (ISSN-L): 1300-7688

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