Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct

Cilt: 21 Sayı: 3 21 Ekim 2017
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Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct

Öz

Present study investigates the effects of solid to fluid conductivity ratio, Prandtl and Reynolds numbers, and solid wall thickness on conjugate heat transfer for a backward facing step duct with a conductive solid bottom wall. Although Kanna and Das performed a case study in 2006 for the same problem, the benchmark studies conducted later including the present one revealed that their results are arguable. Ramsak states in a study “Professor Kanna has confirmed in personal communication that their results are probably wrong”. The temperature and Nusselt number variations along the solid-fluid interface presented here are in excellent agreement with those obtained by Ramsak. The analyses presented here reveal that even though the decrease in Pr and the increase in solid to fluid conductivity ratio have similar global influence with the thinning wall on the interface temperature, the influence of the former parameters are limited in recirculation zone.

Anahtar Kelimeler

Kaynakça

  1. [1] Mensch, A. and Thole, K., 2015, Conjugate heat transfer analysis of the effects of impingement channel height for a turbine blade end wall, Heat and Mass Transfer, 82, 66-77.
  2. [2] Sosnowski, P., Petronio A., Armenio, V., 2013, Numerical model for thin liquid film with evaporation and condensation on solid surfaces in systems with conjugated heat transfer, International Journal of Heat and Mass Transfer, 66, 382-395.
  3. [3] Cintolesi, C., Nilsson, H., Petronio, A., Armenio V., 2017, Numerical simulation of conjugate heat transfer and surface radiative heat transfer using theP1 thermal radiation model: Parametric study in benchmark cases, International Journal of Heat and Mass Transfer, 107, 959-971.
  4. [4] Gresho, P.M., Gartling, D.K., Torczynski, J.R., Cliffe, K.A., Winters, K.H., Garratt, T.J., 1993, Is the steady viscous incompressible two-dimensional flow over a backward-facing step at Re = 800 stable? , Int. J. Numerical Methods Fluids 17, 501–541.
  5. [5] Keskar, J., Lyn, D.A., 1999, Computations of a laminar backward-facing step flow at Re = 800 with a spectral domain decomposition method, Int. J. Numerical Methods Fluids, 29, 411–427.
  6. [6] Gartling, D.K., 1990, A test problem for outflow boundary conditions – flow over a backward-facing step. Int. J. Numerical Methods Fluids, 11, 953–967.
  7. [7] Papanastasiou, T.C., Malamataris, N., Ellwood, K., 1992, A new outflow boundary condition, Int. J. Numerical Methods Fluids, 14, 587–608.
  8. [8] Rogers, S.E., Kwak, D., 1991, An upwind differencing scheme for the incompressible Navier–Stokes equations. Appl. Numer. Math., 8, 43–64.

Ayrıntılar

Birincil Dil

Türkçe

Konular

-

Bölüm

-

Yayımlanma Tarihi

21 Ekim 2017

Gönderilme Tarihi

12 Ocak 2017

Kabul Tarihi

-

Yayımlandığı Sayı

Yıl 2017 Cilt: 21 Sayı: 3

Kaynak Göster

APA
Celik, B. (2017). Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 21(3), 820-830. https://doi.org/10.19113/sdufbed.57913
AMA
1.Celik B. Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2017;21(3):820-830. doi:10.19113/sdufbed.57913
Chicago
Celik, Bayram. 2017. “Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21 (3): 820-30. https://doi.org/10.19113/sdufbed.57913.
EndNote
Celik B (01 Aralık 2017) Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21 3 820–830.
IEEE
[1]B. Celik, “Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct”, Süleyman Demirel Üniv. Fen Bilim. Enst. Derg., c. 21, sy 3, ss. 820–830, Ara. 2017, doi: 10.19113/sdufbed.57913.
ISNAD
Celik, Bayram. “Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21/3 (01 Aralık 2017): 820-830. https://doi.org/10.19113/sdufbed.57913.
JAMA
1.Celik B. Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2017;21:820–830.
MLA
Celik, Bayram. “Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, c. 21, sy 3, Aralık 2017, ss. 820-3, doi:10.19113/sdufbed.57913.
Vancouver
1.Bayram Celik. Conjugate Heat Transfer Characteristics of Laminar Flows Through a Backward Facing Step Duct. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 01 Aralık 2017;21(3):820-3. doi:10.19113/sdufbed.57913

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

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