Proceedings of the 27th National and 5th International ISHMT-ASTFE Heat and Mass Transfer Conference December 14-17, 2023, IIT Patna, Patna-801106, Bihar, India
Investigation of SiO2 − Water Nanofluid Jet Impingement using Eulerian Multiphase Model
Аннотация
The present study focused on investigating jet impingement phenomenon using Eulerian Multiphase method. The Reynolds number and slot jet width are fixed as 10,000 and 5 mm. The separation distance (S/L) is fixed as 6 to achieve maximum heat transfer. The SiO2 − Water nanofluid is considered as working fluid. The SiO2 volume fraction in nanofluid is spanned as 0 − 3 %. The impingement surface is assumed as isothermal surface having temperature as 20 K higher than jet temperature. The solid phase flow modelling is implemented using Kinetic Theory of Granular Flow. The SiO2 volume fraction effect is investigated on nanofluid thermophysical properties and Thermo − Hydraulic parameters. The nanofluid thermal conductivity and solid viscosity shows enhancement with enhanced SiO2 volume fraction. However mixture viscosity may reduce/increase in different jet impingement region. The Thermo − Hydraulic parameter Enhancement Factor (EF) shows improvement with increasing SiO2 volume fraction indicating overall system efficiency improvement.