MAGNETOHYDRODYNAMICS STUDY AND COMPUTATIONAL FLUID DYNAMICS MODELLING OF MAGNETIC NANOFLUID FLOW FE3O4 IN A NARROW CHANNEL

• Main Author: William Imanudin, Akhmad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/83070
• Institution: Institut Teknologi Bandung

The application of an external magnetic field has been found to act as a vortex gene- rator, effectively creating swirling circular currents within a fluid. This alteration in flow pattern enhances mixing and promotes more efficient heat transfer, leading to per- formance improvements in heat sinks, heat exchange, and other devices designed to dissipate concentrated heat flux. To enhance heat transfer in heat sinks and heat excha- nge and to remove concentrated heat flux, an active vortex generator is proposed. This method utilizes the magnetic field generated by permanent magnets to manipulate the flow of magnetic fluid (ferrofluid) in a heated channel. Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems involving fluid flow. This research was conducted on a 30 mm × 4 mm geometry with variations in magnetic field, Reynolds number, and temperature applied to the area where the magnetic field was applied. The results of the research show that the presence of an applied magnetic field on a flow shows the presence of vortices, where the greater the magnetic field applied to an area, the grea- ter the effect on the movement of the nanofluid flow. In addition, the influence of the temperature increase value on an area also gives an increase in the velocity value of the nanofluid flow.