Heat Transfer and Frictional Characteristics in Rectangular Channel with Inclined Perforated Baffles
A numerical study on the turbulent flow and heat
transfer characteristics in the rectangular channel with different types
of baffles is carried out. The inclined baffles have the width of 19.8
cm, the square diamond type hole having one side length of 2.55 cm,
and the inclination angle of 5o. Reynolds number is varied between
23,000 and 57,000. The SST turbulence model is applied in the
calculation. The validity of the numerical results is examined by the
experimental data. The numerical results of the flow field depict that
the flow patterns around the different baffle type are entirely different
and these significantly affect the local heat transfer characteristics.
The heat transfer and friction factor characteristics are significantly
affected by the perforation density of the baffle plate. It is found that
the heat transfer enhancement of baffle type II (3 hole baffle) has the
best values.
[1] Y. L. Tsay, T. S. Chang, J. C. Cheng, "Heat transfer enhancement of
backward-facing step flow in a channel by using baffle installed on the
channel wall", Acta Mech., 2005, Vol 174, pp. 63-76..
[2] C. Berner, F. Durst and D. M. McEligot, "Flow around baffles", ASME J.
Heat Transfer, 1984, Vol. 106, pp. 743 -749.
[3] C. Berner, F. Durst and D. M. McEligot, "Streamwise-periodic flow
around baffles", Proceeding of the 2nd Int. Conf. on Applications of Laser
Anemometry to Fluid Mechanics, Lisbon, Portugal, 1984.
[4] M. A. Habib, A. M. Mobarak, M. A. Sallak, E. A. Abdel Hadi and R. L.
Affify, "Experimental investigation of heat transfer and flow over baffles
of different heights", ASME J. Heat Transfer, 1994, Vol. 116, No. 2, pp.
363-368.
[5] B. W. Webb, and S. Ramadhyani, "Conjugate heat transfer in a channel
with staggered ribs", Int. J. Heat Mass Transfer, 1985, Vol. 28, pp.
1679-1687.
[6] K. M. Kelkar, and S. V. Patankar, "Numerical prediction of flow and heat
transfer in parallel plate channel with staggered fins", Trans. ASME J.
Heat Transfer, 1987, Vol. 109, pp. 25-30.
[7] M. A. Habib, A. E. Attya and D. M. McEligot, "Calculation of turbulent
flow and heat transfer in channels with streamwise-periodic flow", Trans.
ASME J. Turbomach., 1988, Vol. 110, pp. 405-411.
[8] P. Dutta and S. Dutta, "Effect of baffle size, perforation and orientation on
internal heat transfer enhancement", Int. J. Heat Mass Transfer, 1998,
Vol. 41, No. 19, pp. 3005-3013.
[9] Y. T. Yang and C. Z. Hwang, "Calculation of turbulent flow and heat
transfer in a porous-baffled channel", Int. J. Heat Mass Transfer, 2003,
Vol. 46, pp. 771-780.
[10] S. J. Kline and F. A. McClintock, "Describing uncertainty in single
sample experiments", Mechanical Engineering, 1953, Vol. 75, pp. 3-8.
[11] D. C. Wilcox, Turbulent modelling for CFD. 2nd ed., DCW Industries.
1998.
[12] B. E. Launder and B. L. Sharma, "Application of the energy-dissipation
model of turbulence to the calculation of flow near a spinning disc",
Letters in Heat and Mass Transfer, 1974, Vol. 1, Issue 2, pp. 131-137.
[13] W. M. Kays and M. E. Crawford, "Convective heat and mass transfer",
2nd ed., McGraw-Hill, New York. 1990.
[14] S. H. Seyedein, M. Hasan, and A. S. Mujumdar, "Laminar flow and heat
transfer from multiple impinging slot jets with an inclined confinement
surface", Int. J. Heat and Mass Transfer, 1994, Vol. 37, pp. 1867-1875.
[1] Y. L. Tsay, T. S. Chang, J. C. Cheng, "Heat transfer enhancement of
backward-facing step flow in a channel by using baffle installed on the
channel wall", Acta Mech., 2005, Vol 174, pp. 63-76..
[2] C. Berner, F. Durst and D. M. McEligot, "Flow around baffles", ASME J.
Heat Transfer, 1984, Vol. 106, pp. 743 -749.
[3] C. Berner, F. Durst and D. M. McEligot, "Streamwise-periodic flow
around baffles", Proceeding of the 2nd Int. Conf. on Applications of Laser
Anemometry to Fluid Mechanics, Lisbon, Portugal, 1984.
[4] M. A. Habib, A. M. Mobarak, M. A. Sallak, E. A. Abdel Hadi and R. L.
Affify, "Experimental investigation of heat transfer and flow over baffles
of different heights", ASME J. Heat Transfer, 1994, Vol. 116, No. 2, pp.
363-368.
[5] B. W. Webb, and S. Ramadhyani, "Conjugate heat transfer in a channel
with staggered ribs", Int. J. Heat Mass Transfer, 1985, Vol. 28, pp.
1679-1687.
[6] K. M. Kelkar, and S. V. Patankar, "Numerical prediction of flow and heat
transfer in parallel plate channel with staggered fins", Trans. ASME J.
Heat Transfer, 1987, Vol. 109, pp. 25-30.
[7] M. A. Habib, A. E. Attya and D. M. McEligot, "Calculation of turbulent
flow and heat transfer in channels with streamwise-periodic flow", Trans.
ASME J. Turbomach., 1988, Vol. 110, pp. 405-411.
[8] P. Dutta and S. Dutta, "Effect of baffle size, perforation and orientation on
internal heat transfer enhancement", Int. J. Heat Mass Transfer, 1998,
Vol. 41, No. 19, pp. 3005-3013.
[9] Y. T. Yang and C. Z. Hwang, "Calculation of turbulent flow and heat
transfer in a porous-baffled channel", Int. J. Heat Mass Transfer, 2003,
Vol. 46, pp. 771-780.
[10] S. J. Kline and F. A. McClintock, "Describing uncertainty in single
sample experiments", Mechanical Engineering, 1953, Vol. 75, pp. 3-8.
[11] D. C. Wilcox, Turbulent modelling for CFD. 2nd ed., DCW Industries.
1998.
[12] B. E. Launder and B. L. Sharma, "Application of the energy-dissipation
model of turbulence to the calculation of flow near a spinning disc",
Letters in Heat and Mass Transfer, 1974, Vol. 1, Issue 2, pp. 131-137.
[13] W. M. Kays and M. E. Crawford, "Convective heat and mass transfer",
2nd ed., McGraw-Hill, New York. 1990.
[14] S. H. Seyedein, M. Hasan, and A. S. Mujumdar, "Laminar flow and heat
transfer from multiple impinging slot jets with an inclined confinement
surface", Int. J. Heat and Mass Transfer, 1994, Vol. 37, pp. 1867-1875.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:59690", author = "Se Kyung Oh and Ary Bachtiar Krishna Putra and Soo Whan Ahn", title = "Heat Transfer and Frictional Characteristics in Rectangular Channel with Inclined Perforated Baffles", abstract = "A numerical study on the turbulent flow and heat
transfer characteristics in the rectangular channel with different types
of baffles is carried out. The inclined baffles have the width of 19.8
cm, the square diamond type hole having one side length of 2.55 cm,
and the inclination angle of 5o. Reynolds number is varied between
23,000 and 57,000. The SST turbulence model is applied in the
calculation. The validity of the numerical results is examined by the
experimental data. The numerical results of the flow field depict that
the flow patterns around the different baffle type are entirely different
and these significantly affect the local heat transfer characteristics.
The heat transfer and friction factor characteristics are significantly
affected by the perforation density of the baffle plate. It is found that
the heat transfer enhancement of baffle type II (3 hole baffle) has the
best values.", keywords = "Turbulent flow, rectangular channel, inclined baffle,
heat transfer, friction factor.", volume = "3", number = "1", pages = "92-6", }