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Numerical Simulation Study of Residence Time Distribution in an Oscillatory Flow Reactor

Author: WangYanWei
Tutor: WuJia
School: Zhejiang University
Course: Chemical Engineering
Keywords: CFD simulation Residence time distribution Oscillatory flow mixing reactor
CLC: TQ018
Type: Master's thesis
Year: 2002
Downloads: 193
Quote: 3
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Abstract


Oscillatory flow mixing reactor (Oscillatory Flow Reactor, hereinafter referred to as the OFR) with its superior performance ( good mass transfer , heat transfer , the process is easy to control , etc.) is causing widespread concern . The various properties of it in a variety of different methods has been made some valuable results . As a performance of a new type of reaction equipment , it can be applied to many areas of chemical engineering , such as suspension and separation of the particles , the flocculation process , chemical reactors , filtration , biological sciences , medicine and science . In this paper, the CFD method , the residence time distribution (RTD) OFR flow field simulation study of oscillatory flow mixed reactor operating parameters - oscillation Reynolds number Reo RTD . This work is mainly focused on the laminar flow state , a certain three - dimensional the OFR flow field in the net flow tracer particle residence time distribution , through post-processing for different reactor types ( eight chamber OFR , four - chamber OFR of basic tubular reactor with baffles tube type reactor) , the RTD curve under different Reo , and the quantitative analysis according to the shape of the curve , within the reactor is established mixed mode phenomenological models . The first time the three-dimensional the OFR flow field RTD analog and successfully won the 1000 RTD curves of tracer particles . Eight - chamber and four - chamber , respectively, eight and four with interstage backmixing series CSTR phenomenological model for the comparative study , corresponding to the interstage backmixing than optimal adjustment phenomenological model can better describe the characteristics of RTD OFR significant change and adjust the model parameters - interstage backmixing ratio values ??change with Reo and the number of chamber . This work has laid a good foundation for further research . Further on the basis of numerical simulation in the the OFR flow field of RTD Numerical simulation study of the chemical reactions in the OFR .

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