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Liquid-water is introduced at different temperature from side and upstream in a tee pipeline domain. The operation is simulated after construction of control volume and triangular tetrahedral mesh generations are performed. Smaller global fine remeshing hung the work station and for this case, without remeshing, the grid is refined locally at jet region. Effects of the region adaption are shown and swapping is executed to improve computation. Profiles along centerline of side jet and profiles along the centerline of the pipe, away from the jet, are almost identical, however, for the jet zones the profiles showed certain differentiation. An increase in the number of cells results in a larger increase in the unit time required for convergence from machine to machine. The use of the finest refinement is recommended at the gradients.
Cozewith C, Ver Strate G, Dalton T, Frederick J, Ponzi P. Computer simulation of tee mixers for non-reactive and reactive flows. Ind. Eng. Chem. Res. 1991;30:270.
Patankar S, Spalding D. Calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows. Int. Journal Heat Mass Trans. 1972;15:1787-1806.
Forney L, Monclova L. Numerical simulation of pipeline tee mixers: Comparison with data. Industrial Mixing Technology: Chemical and Biological Applications, Academic Press, NY. 1994;141-143.
Sroka L, Forney L. Fluid mixing in a 90° pipeline elbow. Ind. Eng. Chem. Res. 1989;28(6):850-856.
Gosman A. Developments in industrial computational fluid dynamics. Trans I Chem E. 1998;76(Pt A):53-161.
Devahastin S, Mujumdar A. A numerical study of flow and mixing characterististics of laminar confined impinging streams. Chem. Eng. J. 2002;85:215-223.
Zughbi H, Khokhar Z, Sharma R. Numerical and experimental investigations of mixing at side and opposed-tees. AICHE Annual Conference, Indianapolis, USA. 2002;177e.
Fotia S, Kallinderis Y. Quality index and improvement of the interfaces of general hybrid grids. Procedia Engineering. 2014;82: 416-427.
Chan W, Akien E. A unified overset grid generation graphical interface and new concepts on automatic gridding around surface discontinuities; 2002.
Escobar J, Rodrıguez E, Montenegro R, Montero G, González-Yuste J. Simultaneous untangling and smoothing of tetrahedral meshes. Computer Methods in Applied Mechanics and Engineering. 2003;192(25): 2775-2787.
Ikeda T, Durbin P. Mesh stretch effects on convection in flow simulations. Journal of Computational Physics. 2004;199(1):110-125.
Escobar J, Montenegro R, Montero G, Rodríguez E, González-Yuste JM. Smoothing and local refinement techniques for improving tetrahedral mesh quality. Computers & Structures. 2005;83(28):2423-2430.