Optimization of Design of Logarithmic Spiral Deflector in a Stirred Tank with CFD
HAO Hui-di LEI Jian-yong MA Teng QIN Pei-pei FENG Rong-rong YANG Bin
Northwestern University Chemical Engineering Hualu Engineering & Technology Co. Northwestern University Chemical Engineering Northwestern University Chemical Engineering Northwestern University Chemical Engineering
Abstract：The internal flow field characteristics in a central tornado flow stirred tank are simulated qualitatively based on the computational fluid dynamics, the effects of angle of logarithmic spiral deflector, degree of polar angle, initial radius and height of deflector on the flow field in the tank examined, and the deflector structure is optimized for production of nanometer magnesia with the tank. The results show that the dimensions of deflector have significant effect on the flow field. When the internal diameter of stirred tank is 300 mm, the six-straight-blade-disk turbine used, the angle of logarithmic spiral deflector 45o, the polar angle 60o, the initial radius 20 mm, and the height of deflector 30 mm, two circular flow patterns form, the effect of tornado flow is obvious and that of mixing better. Such optimization has been verified in the experimental preparation of nanometer magnesia.
郝惠娣 雷建勇 马腾 秦佩 冯荣荣 杨斌. 计算流体动力学用于搅拌槽内对数螺旋导流板结构的优化[J]. , 2013, 13(6): 921-925.
HAO Hui-di LEI Jian-yong MA Teng QIN Pei-pei FENG Rong-rong YANG Bin. Optimization of Design of Logarithmic Spiral Deflector in a Stirred Tank with CFD. , 2013, 13(6): 921-925.
2013, Vol. 13 
