Computational Simulation of Turbulence Heat Transfer in Multiple Rectangular Ducts
This study comprehensively simulate the use of k-ε
model for predicting flow and heat transfer with measured flow field
data in a stationary duct with elucidates on the detailed physics
encountered in the fully developed flow region, and the sharp 180°
bend region. Among the major flow features predicted with accuracy
are flow transition at the entrance of the duct, the distribution of
mean and turbulent quantities in the developing, fully developed, and
sharp 180° bend, the development of secondary flows in the duct
cross-section and the sharp 180° bend, and heat transfer
augmentation. Turbulence intensities in the sharp 180° bend are
found to reach high values and local heat transfer comparisons show
that the heat transfer augmentation shifts towards the wall and along
the duct. Therefore, understanding of the unsteady heat transfer in
sharp 180° bends is important. The design and simulation are related
to concept of fluid mechanics, heat transfer and thermodynamics.
Simulation study has been conducted on the response of turbulent
flow in a rectangular duct in order to evaluate the heat transfer rate
along the small scale multiple rectangular duct
[1] Vazquez, M.S., W.V. Rodriguez, and R. Issa, Effect of ridged Walls on
the heat transfer in a heated square duct International Journal of Heat
and Mass Transfer, 2005. 48(10): p. 2050-2063.
[2] Rokni, M. and T.B. Gatski, Predicting turbulent convective heat transfer
in fully developed duct flows. International Journal of Heat and Fluid
Flow, 2001. 22(4): p. 381-392.
[3] Maeda, N., M. Hirato, and H. Fujita, Turbulent flow in a rectangular
duct with a smooth-to-rough step change in surface roughness.
International Journal of Energy, 2005. 30(2-4): p. 129-148.
[4] Yuan, J., M. Rokni, and B. Sunden, Simulation of fully developed
laminar heat and mass transfer in fuel cell ducts with different crosssections.
International Journal of Heat and Mass Transfer, 2001. 44(21):
p. 4047-4058.
[5] Abraham, J.P. and E.M. Sparrow, Fraction drag resulting from the
simultaneous imposed motions of a freestream and its bounding surface.
International Journal of Heat and Fluid Flow, 2005. 26(2): p. 289-295.
[6] Sparrow, E.M. and J.P. Abraham, Universal solutions for the streamwise
variation of the temperature of a moving sheet in the presence of a
moving fluid. International Journal of Heat and Mass Transfer, 2005.
48(15): p. 3047-3056.
[7] Sewall, E.A., et al., Experimental validation of large eddy simulations of
flow and heat transfer in a stationary ribbed duct. International Journal
of Heat and Fluid Flow, 2006. 27(2): p. 243-258.
[8] Chung, Y.M., P.G. Tucker, and D.G. Roychowdhury, Unsteady laminar
flow and convective heat transfer in a sharp 180O bend. International
Journal of Heat and Fluid Flow, 2003. 24(1): p. 67-76.
[9] Yuan, J., M. Rokni, and B. Sunden, Three-dimensional computational
analysis of gas and heat transport phenomena in ducts relevant for
anode-supported solid oxide fuel cells. International Journal of Heat and
Mass Transfer, 2003. 46(5): p. 809-821.
[10] Bradshaw P., An introduction to turbulence and its measurement.
Pergamon Oxford, 1971.
[1] Vazquez, M.S., W.V. Rodriguez, and R. Issa, Effect of ridged Walls on
the heat transfer in a heated square duct International Journal of Heat
and Mass Transfer, 2005. 48(10): p. 2050-2063.
[2] Rokni, M. and T.B. Gatski, Predicting turbulent convective heat transfer
in fully developed duct flows. International Journal of Heat and Fluid
Flow, 2001. 22(4): p. 381-392.
[3] Maeda, N., M. Hirato, and H. Fujita, Turbulent flow in a rectangular
duct with a smooth-to-rough step change in surface roughness.
International Journal of Energy, 2005. 30(2-4): p. 129-148.
[4] Yuan, J., M. Rokni, and B. Sunden, Simulation of fully developed
laminar heat and mass transfer in fuel cell ducts with different crosssections.
International Journal of Heat and Mass Transfer, 2001. 44(21):
p. 4047-4058.
[5] Abraham, J.P. and E.M. Sparrow, Fraction drag resulting from the
simultaneous imposed motions of a freestream and its bounding surface.
International Journal of Heat and Fluid Flow, 2005. 26(2): p. 289-295.
[6] Sparrow, E.M. and J.P. Abraham, Universal solutions for the streamwise
variation of the temperature of a moving sheet in the presence of a
moving fluid. International Journal of Heat and Mass Transfer, 2005.
48(15): p. 3047-3056.
[7] Sewall, E.A., et al., Experimental validation of large eddy simulations of
flow and heat transfer in a stationary ribbed duct. International Journal
of Heat and Fluid Flow, 2006. 27(2): p. 243-258.
[8] Chung, Y.M., P.G. Tucker, and D.G. Roychowdhury, Unsteady laminar
flow and convective heat transfer in a sharp 180O bend. International
Journal of Heat and Fluid Flow, 2003. 24(1): p. 67-76.
[9] Yuan, J., M. Rokni, and B. Sunden, Three-dimensional computational
analysis of gas and heat transport phenomena in ducts relevant for
anode-supported solid oxide fuel cells. International Journal of Heat and
Mass Transfer, 2003. 46(5): p. 809-821.
[10] Bradshaw P., An introduction to turbulence and its measurement.
Pergamon Oxford, 1971.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:54628", author = "Azli Abd. Razak and Yusli Yaakob and Mohd Nazir Ramli", title = "Computational Simulation of Turbulence Heat Transfer in Multiple Rectangular Ducts", abstract = "This study comprehensively simulate the use of k-ε
model for predicting flow and heat transfer with measured flow field
data in a stationary duct with elucidates on the detailed physics
encountered in the fully developed flow region, and the sharp 180°
bend region. Among the major flow features predicted with accuracy
are flow transition at the entrance of the duct, the distribution of
mean and turbulent quantities in the developing, fully developed, and
sharp 180° bend, the development of secondary flows in the duct
cross-section and the sharp 180° bend, and heat transfer
augmentation. Turbulence intensities in the sharp 180° bend are
found to reach high values and local heat transfer comparisons show
that the heat transfer augmentation shifts towards the wall and along
the duct. Therefore, understanding of the unsteady heat transfer in
sharp 180° bends is important. The design and simulation are related
to concept of fluid mechanics, heat transfer and thermodynamics.
Simulation study has been conducted on the response of turbulent
flow in a rectangular duct in order to evaluate the heat transfer rate
along the small scale multiple rectangular duct", keywords = "Heat transfer, turbulence, rectangular duct,
simulation.", volume = "3", number = "5", pages = "508-5", }