Generality of Brownian motion velocity of two phase approach in interrupted microchannel heat sink

• Main Authors: Mat Tokit E., Yusoff M.Z., Mohammed H.A.
• Other Authors: 35756670600
• Format: Article
• Published: 2023
• Subjects: Brownian motion velocity; Microchannel heat sink; Nanofluid; Two phase model; Brownian movement; Heat sinks; Heat transfer coefficients; Nusselt number; Reynolds number; Velocity; Volume fraction; Heat Transfer enhancement; Heat transfer process; Micro channel heat sinks; Nanofluids; Thermal Performance; Two phase; Two-phase model; Nanofluidics
• Institution: Universiti Tenaga Nasional

The thermal performance of a single interrupted microchannel heat sink is analyzed. The generality of Brownian motion velocity had been investigated in the range of various Reynolds numbers of 168 to 1200 and Al2O3 nanofluid volume fractions of 0.01 to 0.04. Three different Brownian motion velocities represent the nanoparticle velocity had been modeled in two-phase modeling of nanofluid system. The heat transfer enhancement in this study is investigated in terms of the predicted Nusselt number. As the Reynolds number increased from 200 to 1200, augmentation in average Nusselt number is predicted from 57.64% to 57.97%. At increasing nanofluid volume fraction from 0.01 to 0.04, conduction dominated the heat transfer process results in Nusselt number increment from 3.90% to 5.13%. � 2013 Elsevier Ltd.