| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Research in Reduced Gravity
|
| Presentation Title |
Experimental and Numerical Investigation of Dynamic Behavior of an Oscillating High-density Drop Processed using Electrostatic Levitation Furnace Aboard the International Space Station |
| Author(s) |
Ali Rabeh, Makrand A. Khanwale, Masahito Watanabe, Robert W. Hyers, Michael P. SanSoucie, Jonghyun Lee, Baskar Ganapathysubramanian |
| On-Site Speaker (Planned) |
Ali Rabeh |
| Abstract Scope |
The surface tension of molten oxides and the interfacial phenomena between molten iron and motel oxides are being studied using the Electrostatic Levitation Furnace (ELF) aboard the International Space Station. Once a levitated drop of 2-3 mm in diameter is excited by resonance, the drop dampens freely. During this free oscillation damping, the amplitude shows an exponential decay. An oscillation curve is fitted with the Legendre polynomials and the damping constant is extracted. The surface tension is determined using the extracted damping constant by the Rayleigh equation. To design and interpret the results from such space experiments, a numerical model has been developed using a phase field approach. A projection-based discretization and adaptive mesh were used to reproduce the ELF experiments by solving the Navier-Stokes and the Cahn-Hillard equations. The numerically predicted surface tension showed good agreement with that from the ELF experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Extraction and Processing, High-Temperature Materials |