85 citations · 227 across the 7 of their papers we have counts for
5 papers · 2 filters
Bubble Nucleation on Nano- to Micro-size Cavities and Posts: An Experimental Validation of Classical Theory
S. Witharana, B. Phillips, S. Strobel +7
Recently-reported data suggest that bubble nucleation on surfaces with nano-sized features (cavities and posts) may occur close to the thermodynamic saturation temperature. However…
Stability of glycol nanofluids -- the consensus between theory and measurement
Ibrahim Palabiyik, Sanjeeva Witharana, Zenfira Musina +1
Formulation of stable nanofluids containing ZnO, Al2O3 and TiO2 nanoparticles in propylene glycol (PG), ethylene glycol (EG) and 50wt% mixtures of PG and EG in water (WPG, WEG) wer…
Dispersion stability and thermal conductivity of propylene glycol-based nanofluids
Ibrahim Palabiyik, Zenfira Musina, Sanjeeva Witharana +1
The dispersion stability and thermal conductivity of propylene glycol based nanofluids containing Al2O3 and TiO2 nanoparticles were studied in the temperature range of 20 to 80 °C.…
Computational Analysis of Factors Influencing Enhancement of Thermal Conductivity of Nanofluids
George Okeke, Sanjeeva Witharana, Joseph Antony +1
Numerical investigations are conducted to study the effect of factors such as particle clustering and interfacial layer thickness on thermal conductivity of nanofluids. Based on th…
Aggregation and settling in aqueous polydisperse alumina nanoparticle suspensions
Sanjeeva Witharana, Chris Hodges, Dan Xu +2
Nanoparticle suspensions (also called nanofluids) are often polydisperse and tend to settle with time. Settling kinetics in these systems are known to be complex and hence challeng…