Applied Mathematics and Mechanics >
Dissipative particle dynamics simulation of flow through periodic arrays of circular micropillar
Received date: 2016-01-25
Revised date: 2016-03-18
Online published: 2016-11-01
Supported by
Project supported by the National Natural Science Foundation of China (Nos.31370953,10942004,and 91230203)
Flow through arrays of micropillar embedded inside microfluidic chip systems is important for various microfluidic devices.It is critical to accurately predict the mass flow rate through pillar arrays based on the pillar design.This work presents a dissipative particle dynamics (DPD) model to simulate a problem of flow across periodic arrays of circular micropillar and investigates the permeability of two types of micropillar arrays.The flow fields including horizontal and vertical velocity fields,the number density field,and the streamline of the flow are analyzed.The predicted solid volumes by the presented DPD simulation of both types of arrays are quite close to the actual counterparts.These quantitative agreements show usefulness and effectiveness of the DPD model in simulating arrays of micropillar.By comparing two types of micropillar arrangement patterns,we find that the arrangement pattern of micropillar does not have significant influence on the permeability of the array.
Lüwen ZHOU, Yuqian ZHANG, Xiaolong DENG, Moubin LIU . Dissipative particle dynamics simulation of flow through periodic arrays of circular micropillar[J]. Applied Mathematics and Mechanics, 2016 , 37(11) : 1431 -1440 . DOI: 10.1007/s10483-016-2091-9
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