Abstract：Transient numerical analysis of amplitude effects on the flow and heat transfer in oscillatory baffled crystallizer (OBC) at a constant oscillation frequency was performed. The numerical model and physical model were developed. Based on the SST k-ω turbulence model and user defined function (UDF), an oscillatory flow was introduced into OBC so as to study the synergetic effects of fluid micro-mixing and heat transfer in OBC, and then the evaluation coefficient of PEC was used to evaluate the heat transfer efficiency in OBC. On the basis of transient numerical results, the eddy scale, pressure drop and Nusselt number increased with the increase of amplitude, while resistance coefficient decreased with the increase of amplitude; the axial temperature in OBC dropped in a wavelike model; bigger amplitude, less time for achieving steady temperature and higher evaluation coefficient, which meant better heat transfer efficiency in OBC.
LIU Zijin,ZHANG Chuntao. Numerical Research of Amplitude Effects on Heat Transfer in Oscillatory Baffled Crystallizer [J]. 化学反应工程与工艺, 2020, 36(2): 117-126.
