About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Presentation Title |
Computational Fluid Dynamics and Experimental Study of Converging-diverging Nozzle in Aerosol Jet Printing |
Author(s) |
Md Shihab Shakur, Md Nazmus Sakib, Erik Inman, Srikanthan Ramesh |
On-Site Speaker (Planned) |
Md Shihab Shakur |
Abstract Scope |
The aerosol droplets in the Aerosol jet printing (AJP) follow streamlines due to their tendency and low inertia, and they land on the unintended region, creating overspray. Current research hasn't fully explored the influence of converging-diverging nozzles on overspray. As the droplets are directed and deposited on the substrate through the nozzle, the study intends to study the influence of converging-diverging nozzle influence on overspray. The study investigates the flow characteristics in the cross-section variation of the converging-diverging nozzle over the printed line. A computational fluid dynamics model will be introduced to explain the effect of process parameters on printed feature morphology and resolution with a converging-diverging nozzle. Compressible Navier-Stokes equations will be applied to investigate the flow condition, and a Lagrangian discrete phase model will simulate the droplet trajectories for several process parameters. The framework is expected to pinpoint the feasibility of using a converging-diverging nozzle in the AJP. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |