Study on friction factor of developing and developed laminar flow in annular-sector ducts |
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| Authors: | M. J. Lin W. Q. Tao S. S. Lue |
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| Affiliation: | (1) School of Energy and Power Engineering, Xi’an Jiaotong University, 710049 Xi’an, Shanxi, China;(2) Institute of Chemical Engineering, Southern-China University of Science and Technology, Guangzhou, Guangdong, China |
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| Abstract: | The pressure drops of laminar developing and developed flow in annular-sector ducts with small round corner have been investigated experimentally. Numerical simulation has been performed to study the effect of the small round corner on the friction factor in the developed region. It has been found that with the increase in corner radius, the value off Re decreases. In the range ofr c/rofrom 0.031 to 0.12, the decrease inf Re varies from 0.048% to 0.1% for the five apex angle computed. |
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| Keywords: | laminar flow friction factor |
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