Numerical simulation of three dimensional turbulent flow in suddenly expanded rectangular duct
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In this paper, to simulate the three dimensional turbulent flow in suddenly expanded rectangular duct numerically, the SIMPLEC algorithm is employed to solve the incompressible Navier-Stokes equation with k-ɛ turbulence model. The numerical results show well the three dimensional turbulent flow field in the rectangular duct behind the sudden expansion cross-section, and agree fairly well with the experimental result of the length of the main circumfluence. The numerical method of this paper can be applied to numerical analysis of this kind of turbulent flow.
Key wordsturbulent flow three dimensional numerical simulation suddenly expanded rectangular duct
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- B. E.Launder, et al., The numerical computation of turbulent flow, Computer Methods in Applied Mechanics and Engineering, 3 (1974), 269–292.Google Scholar
- S. V.Patankar, Numerical Heat Transfer and Fluid Flow, Hemisphere, New York (1980).Google Scholar
- J. P.VanDoormaal, et al. Enhancements of the SIMPLE method for predicting incompressible fluid flows, Numerical Heat Transfer, 7 (1984), 147–163.Google Scholar
- D. S.Jang, et al., Comparison of the Piso, SIMPLE and SIMPLEC algorithms for the treatment of the pressure-velocity coupling in steady flow problems, Numerical Heat Transfer, 10 (1986), 209–228.Google Scholar
- B. E.Launder and D. B.Spalding, Lectures on Mathematical Model of Turbulence, Academic, London (1972).Google Scholar
- R. S.Amano, Development of a turbulence near-wall model and its application to separated and reattachment flows, Numerical Heat Transfer, 7 (1984), 59–75.Google Scholar
- P.Moin, et al., Numerical investigation of turbulent channel flow, J. Fluid Mech., 118 (1982), 341–377.Google Scholar
- Ni Haoqing, et al., Mathematical modeling of turbulent buoyant, recirculating flows with sudden expansion, Acta Mechanica Sinica, 19, 1 (1987), (in Chinese)Google Scholar