Numerical investigation of heat transfer augmentation through geometrical optimization of vortex generators

• Autorzy: Mofid Gorji , Hessam Mirgolbabaei , Amin Barari , Ganji Domairry
• Języki publikacji: EN

Abstrakty

EN

In this paper a two-dimensional numerical simulation of a steady incompressible and turbulent model has been carried out to study the effects of vortex generators in a compact heat exchanger in a curvilinear coordinate system. The mesh which is applied in this study is boundary fitted and has been smoothed by a Laplace operator. Experimental data of a former study has been applied to validate the numerical results. The effects of geometrical variation are studied by adjusting vortex generators’ inclination and relative cross location. The major issue of this study is the optimal trade-off by selecting an optimal geometric, considering the opposite influences of geometrical variation on Nusselt number and pressure drop.

Słowa kluczowe

EN

compact heat exchanger; vortex generator (VG); turbulence modeling; thermal optimization; numerical investigation

• Czasopismo: Open Physics
• Rocznik: 2010
• Tom: 8
• Numer: 6
• Strony: 924-930

Daty

wydano

2010-12-01

online

2010-09-05

Twórcy

autor

Mofid Gorji

• Department of Mechanical Engineering, Babol University of Technology, P. O. Box 484, Babol, Iran

autor

Hessam Mirgolbabaei

• Department of Mechanical Engineering, Islamic Azad University, Jouybar branch, Jouybar, Iran,

autor

Amin Barari

• Department of Civil Engineering, Aalborg University, Aalborg, Denmark,

autor

Ganji Domairry

• Department of Mechanical Engineering, Babol University of Technology, P. O. Box 484, Babol, Iran

Bibliografia

• [1] E. Buyruk, M. W. Johnson, I. Owen, Int. J. Heat Fluid Fl. 19, 223 (1998) http://dx.doi.org/10.1016/S0142-727X(97)10027-3[Crossref]
• [2] C. C. Wang, W. L. Fu, C. T. Chang, Heat Transfer and Friction Characteristics 14, 174 (1997)
• [3] C. C. Wang, J. Y. Jang, N. F. Chiou, Int. J. Heat Mass Tran. 42, 1919 (1999) http://dx.doi.org/10.1016/S0017-9310(98)00288-9[Crossref]
• [4] L. E Mohseni, M. Gorji, M. Masoodi, Therm. Sci., 12, 129 (2008) http://dx.doi.org/10.2298/TSCI0802129M[Crossref]
• [5] J. Y. Jang, L. K. Chen, Int. J. Heat Mass Tran. 40, 3981 (1997) http://dx.doi.org/10.1016/S0017-9310(97)00047-1[Crossref]
• [6] W. Somchai, C. Yutasak, Energ. Convers. Manage. 46, 2216 (2005) http://dx.doi.org/10.1016/j.enconman.2004.09.011[Crossref]
• [7] R. M. Manglik, J. H. Zhang, A. Muley, Int. J. Heat Mass Tran. 48, 1439 (2005) http://dx.doi.org/10.1016/j.ijheatmasstransfer.2004.10.022[Crossref]
• [8] J. Y. Jang, J. Y. Yang, Heat Transfer Eng. 19, 55 (1998) http://dx.doi.org/10.1080/01457639808939936[Crossref]
• [9] S. M. Saboya, F. E. M. Saboya, Exp. Therm. Fluid Sci. 24, 67 (2001) http://dx.doi.org/10.1016/S0894-1777(00)00059-5[Crossref]
• [10] T. A. Cowell, M. R. Heikal, A. Achaichia, Exp. Therm. Fluid Sci. 10, 192 (1995) http://dx.doi.org/10.1016/0894-1777(94)00093-N[Crossref]
• [11] A. Achaichia, T. A. Cowell, Exp. Therm. Fluid Sci. 1, 147 (1988) http://dx.doi.org/10.1016/0894-1777(88)90032-5[Crossref]
• [12] T. Perrotin, D. Clodie, Int. J. Refrig. 27, 422 (2004) http://dx.doi.org/10.1016/j.ijrefrig.2003.11.005[Crossref]
• [13] J. H. Kim, J. H. Yun, S. Chang, J Thermophys. Heat Tr. 18, 58 (2004) http://dx.doi.org/10.2514/1.9123[Crossref]
• [14] Yonghan Kim, Yongchan Kim, Int. J. Refrig. 28, 851 (2005) http://dx.doi.org/10.1016/j.ijrefrig.2005.01.013[Crossref]
• [15] Jin-Sheng Leu, Ying-Hao Wu, Jiin-Yuh Jang, Int. J. Heat Mass Tran. 47, 4327 (2004) http://dx.doi.org/10.1016/j.ijheatmasstransfer.2004.04.031[Crossref]
• [16] H. J. Wu, J.T. Fan, N. Du, Int. J. Nonlin. Sci. Num. 10, 291 (2009)
• [17] Q. Chen, M. R. Wang, N. Pan et al., Int. J. Nonlin. Sci. Num. 10, 57 (2009)
• [18] T. S. Wang, Y. S. Chen, Unified Navier-Stokes flow field and performance analysis of liquid rocket engines, AIAA J. 9, 678 (1993)
• [19] A. Liakopoulos, AIAA J. 22, 844 (1984) http://dx.doi.org/10.2514/3.8696[Crossref]
• [20] S. V. Patankar, Numerical Heat Transfer and Fluid Flow (Hemisphere, New York, 1980)
• [21] J. F. Thompson, Z. U. A. Warsi, C. Wayne Mastin, Numerical grid generation (Elsevier Science Publishing Co. Inc, 2001)
• [22] H. K. Versteeg, W. Malalasekera, An Introduction to Computational Fluid Dynamics (John Wiley & sons Inc, 1995)

Identyfikatory

DOI

10.2478/s11534-010-0005-0