The purpose of this project is to successfully design, simulate, practice test, and finally produce functioning three dimensional (3D) printed structures applicable in aerospace applications. Various designs of pore structures were produced in a 3D design program for applications including gas- and liquid-phase filters. The fluid flow patterns and mass diffusion were simulated using the Comsol Multiphysics program. The pressure drop across the structure, permeability, porosity, and mass transfer rate were estimated in the simulation. The pore structure and size that produced the lowest pressure drop and highest mass transfer in the simulation were selected and printed out for laboratory flow tests. The 3D printed filter was installed in a flow system and deionized water was pumped in at different flow rates, e. g., 0.1, 0.5, 1.0 and 2 ml min-1. Blue ink (Tracer) was injected at the entrance of the filter at 0.1 ml min-1. The pressure drop and ink breakthrough curve were obtained at each flow rate. The results were compared with the commercial filters. The 3D printed filter with the spiral pore structure showed a higher mass transfer rate than that of standard filters while maintaining the pressure drop lower on average than that of standard filters.

Pressure drop and diffusion rate in 3D printed aerospace structure

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.