Viscosity prediction and optimization of ZnO-coconut oil nanofluids using numerical simulation

2021 ◽  
Author(s):  
Abdullah Bin Mahfouz
Keyword(s):  
Numerical Simulation ◽  
Coconut Oil ◽  
Viscosity Prediction

scholarly journals Investigation on the rheological behavior of coconut oil based hybrid CeO2/CuO nanolubricants

2018 ◽  
Vol 233 (1) ◽  
pp. 170-177 ◽  
Author(s):  
Ayamannil Sajeeb ◽  
Perikinalil Krishnan Rajendrakumar
Keyword(s):  
Rheological Behavior ◽  
Coconut Oil ◽  
Theoretical Models ◽  
Cuo Nanoparticles ◽  
Theoretical Studies ◽  
Shear Rates ◽  
Viscosity Prediction ◽  
Experimental And Theoretical Studies ◽  
Total Concentrations ◽  
Newtonian Behavior

In the present work, hybrid CeO2/CuO–coconut oil nanolubricants in different weight fractions are prepared for different proportions of CeO2 and CuO namely 25/75, 50/50, and 75/25. Experimental and theoretical studies are carried out to investigate the rheological behavior of these hybrid nanolubricants with different proportions CeO2/CuO at a temperature range of 30 ℃ to 90 ℃ and various shear rates for different total concentrations (wt%) ranging from 0% to 1%. For higher concentrations and lesser shear rates, non-Newtonian behavior is observed for each proportion of CeO2 and CuO. Nanoparticle–oil interactions play an important role for non-Newtonian behavior at higher concentrations. But at higher shear rates, the nanolubricants behave as Newtonian fluids at all temperatures and concentrations. The values of viscosity measured using a rheometer shows minor variations compared to the values obtained by the theoretical models due to interactions, morphology, and size effects of nanoparticles. An empirical viscosity prediction model for hybrid CeO2/CuO–coconut oil nanolubricants is proposed in terms of concentrations for various temperatures and proportions of CeO2/CuO nanoparticles based on experimental results.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake

Numerical simulation of pulsatile blood flow in the human left ventricle

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
W Schiller ◽  
K Spiegel ◽  
T Schmid ◽  
H Rudorf ◽  
S Flacke ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Blood Flow ◽  
Left Ventricle ◽  
Pulsatile Blood Flow ◽  
Human Left Ventricle
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