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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   MARCH 2017 , Volume 16 , Number 12 ; Page(s) 215 To 226.
 
Paper: 

NUMERICAL ANALYSIS OF 3D EFFECTS OF VISCOUS MIRCOPUMP ON FLOW RATE, EFFICIENCY AND ENTROPY GENERATION BY LBM

 
 
Author(s):  KHOZEYMEH NEZHAD HOJJAT, NIAZMAND HAMID*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, FERDOWSI UNIVERSITY OF MASHHAD, MASHHAD, IRAN
 
Abstract: 

In the present paper, a numerical study is performed for analysis of geometrical 3D parameters namely microchannel depth, eccentricity and sizes of rotors and operational parameter, specifically pressure difference on flow rate and efficiency by LBM. It was found that with the simultaneous variation of rotors eccentricity and microchannel depth for all depths, increasing eccentricity leads to the increase of both flow rate and efficiency. In addition, for a constant eccentricity both flow rate and efficiency increase with increasing depth. In the next investigation in which simultaneous effects of geometrical parameters, namely rotors sizes and the microchannel depth are discussed, it is determined that in all depths, by decreasing the rotors sizes flow rate decreases. But for efficiency, it decreases in the lower depths, while at larger depths efficiency increases by increasing depth. Finally, the effects of operational parameter of pressure difference and geometrical parameter of microchannel depth on flow rate and efficiency have been studied. As the results show, increasing the pressure difference, flow rate linearly decreases such that it became zero at a certain pressure. Moreover, it is observed that efficiency varies parabolically with pressure difference. Results of entropy analysis show that in general, the entropy generation increases with increasing eccentricity and sizes of rotors and also pressure difference.
Moreover, the entropy generation decreases with increasing the micropump depth in all cases. Analysis of the obtained results in this paper indicate that
e=0.6 and S=2 can be selected and introduced as the optimal eccentricity and sizes of rotors respectively, and DP*=DP*0/2 is selected as the optimum pressure difference.

 
Keyword(s): VISCOUS MICROPUMP, GEOMETRICAL AND OPERATIONAL PARAMETERS, 3D EFFECTS, LATTICE BOLTZMANN METHOD
 
 
References: 
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+ Click to Cite.
APA: Copy

KHOZEYMEH NEZHAD, H., & NIAZMAND, H. (2017). NUMERICAL ANALYSIS OF 3D EFFECTS OF VISCOUS MIRCOPUMP ON FLOW RATE, EFFICIENCY AND ENTROPY GENERATION BY LBM. MODARES MECHANICAL ENGINEERING, 16(12 ), 215-226. https://www.sid.ir/en/journal/ViewPaper.aspx?id=572553



Vancouver: Copy

KHOZEYMEH NEZHAD HOJJAT, NIAZMAND HAMID. NUMERICAL ANALYSIS OF 3D EFFECTS OF VISCOUS MIRCOPUMP ON FLOW RATE, EFFICIENCY AND ENTROPY GENERATION BY LBM. MODARES MECHANICAL ENGINEERING. 2017 [cited 2021July29];16(12 ):215-226. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572553



IEEE: Copy

KHOZEYMEH NEZHAD, H., NIAZMAND, H., 2017. NUMERICAL ANALYSIS OF 3D EFFECTS OF VISCOUS MIRCOPUMP ON FLOW RATE, EFFICIENCY AND ENTROPY GENERATION BY LBM. MODARES MECHANICAL ENGINEERING, [online] 16(12 ), pp.215-226. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572553.



 
 
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