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Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 2; Page(s) 719 To 728.
 
Paper: 

NUMERICAL METHOD TO PREDICT SLIP LENGTH IN TURBULENT CHANNEL FLOW

 
 
Author(s):  NOURI N.M.*, RASTAN M.R., SEKHAVAT S.
 
* SCHOOL OF MECHANICAL ENGINEERING, MECHANICAL ENGINEERING, APPLIED HYDRODYNAMICS LABORATORY, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, NARMAK, TEHRAN, IRAN
 
Abstract: 

In the present research work, we introduce a new method for estimating the slip length on superhydrophobic surfaces. Hence, a dynamic force is added to momentum equations and velocity boundary condition is rewritten in a new form. Laminar and turbulent channel flows are considered and two force functions are used with different profiles to investigate their effects on results. The turbulent channel flow is considered at Ret= 180 and the Large Eddy Simulation (LES) method has been applied to analyze this flow. All results indicate that this method can predict the streamwise slip length with a good accuracy, which is comparable with the Navier’s method. So, using this numerical solution and also measuring pressure drop and mass flow rate in the channel, slip length can be calculated. Consequently, the errors and difficulties of slip length measurements in typical methods such as AFM and ?PIV would be eliminated.

 
Keyword(s): SUPERHYDROPHOBIC, SLIP LENGTH, NON-CONSERVATIVE FORCE, LARGE EDDY SIMULATION
 
 
References: 
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+ Click to Cite.
APA: Copy

NOURI, N., & RASTAN, M., & SEKHAVAT, S. (2016). NUMERICAL METHOD TO PREDICT SLIP LENGTH IN TURBULENT CHANNEL FLOW. JOURNAL OF APPLIED FLUID MECHANICS (JAFM), 9(2), 719-728. https://www.sid.ir/en/journal/ViewPaper.aspx?id=569778



Vancouver: Copy

NOURI N.M., RASTAN M.R., SEKHAVAT S.. NUMERICAL METHOD TO PREDICT SLIP LENGTH IN TURBULENT CHANNEL FLOW. JOURNAL OF APPLIED FLUID MECHANICS (JAFM). 2016 [cited 2021May16];9(2):719-728. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569778



IEEE: Copy

NOURI, N., RASTAN, M., SEKHAVAT, S., 2016. NUMERICAL METHOD TO PREDICT SLIP LENGTH IN TURBULENT CHANNEL FLOW. JOURNAL OF APPLIED FLUID MECHANICS (JAFM), [online] 9(2), pp.719-728. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569778.



 
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