Experimental and computational fluid dynamics modeling of mixing by Visco-jet impellers

Masoud Rahimi; Saeideh Amraei; Ammar Abdulaziz Alsairafi

Korean Journal of Chemical Engineering, Vol.28, No.6, 1372-1379, June, 2011

DOI10.1007/s11814-010-0522-y Export Citation

Experimental and computational fluid dynamics modeling of mixing by Visco-jet impellers

Masoud Rahimi^†, Saeideh Amraei, and Ammar Abdulaziz Alsairafi¹

CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran
¹Faculty of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, Kuwait

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This paper reports experimental and computational frluid dynamics (CFD) studies on an impeller called Visco-jet with the aim of finding the effect of two side diameters ratio of its blade, which has a semi-conical shape, on drawdown process of floating polymericparticles into high viscosity glycerin solution. Nine different geometries were examined experimentally, and there were significant differences in their performance. The results reveal that when diameter of smaller side of semi-cone impeller is half of the other side, mixing was performed in a more efficient way. The CFD-predicted results have been used for explaining the experimental observation. The CFD-predicted hydrodynamics parameters confirm superiority of this geometry compared with the other ones.

Keywords:CFD;Visco-jet;Mixing;Modeling Viscous Fluid

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[2] Kim SG, Choi KJ, Yu PJ, Kim SH, Lee YD, Korean J. Chem. Eng., 25(1), 19 (2008)

[3] Ozcan-Taskin G, Wei HY, Chem. Eng. Sci., 58(10), 2011 (2003)

[4] Kuzmanic N, Ljubicic B, Chem. Eng. J., 84(3), 325 (2001)

[5] Iranshahi A, Heniche M, Bertrand F, Tanguy PA, Chem. Eng. Sci., 61(8), 2609 (2006)

[6] Iranshahi A, Devals C, Heniche M, Fradette L, Tanguy PA, Takenaka K, Chem. Eng. Sci., 62(14), 3641 (2007)

[7] Perez-Terrazas JE, Ibarra-Junquera V, Rosu HC, Korean J. Chem. Eng., 25(3), 461 (2008)

[8] Sahu AK, Kumar P, Patwardhan AW, Joshi JB, Chem. Eng. Sci., 54(13-14), 2285 (1999)

[9] Um BH, Hanley TR, Korean J. Chem. Eng., 25(5), 1094 (2008)

[10] Pakzad L, Ein-Mozaffari F, Chan P, Chem. Eng. Process., 47(12), 2218 (2008)

[11] Kasat GR, Khopkar AR, Ranade VV, Pandita AB, Chem. Eng. Sci., 63(15), 3877 (2008)

[12] Yamazaki H, Tojo K, Miyanami K, Powder Technol., 48, 205 (1986)

[13] Barailler F, Heniche M, Tanguy PA, Chem. Eng. Sci., 61(9), 2888 (2006)

[14] Ozcan-Taskin G, Chem. Eng. Sci., 61(9), 2871 (2006)

[15] Van der Westhuizen AP, Deglon DA, Mineral. Eng., 20, 233 (2007)

[16] FLUENT 6.2 ®, FLUENT Inc., Lebanon, NH, USA (2005)

[17] Versteeg HK, Malalasekera W, An introduction to computational fluid dynamics: The finite volume method, first Ed., Longman Limited, England (1995)

[18] Anderson TB, Jackson R, Computational fluid dynamics: The basic with applocation, McGraw-Hill. Inc. (1995)

[19] Bird RB, Stewart WE, Lightfoot EN, Transport Phenomena, John Wiley & Sons, Inc. (2002)

[20] Alliet-Gaubert M, Sardeing R, Xuereb C, Hobbes P, Letellier B, Swaels P, Chem. Eng. Process., 45(5), 415 (2006)