| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Research in Reduced Gravity
|
| Presentation Title |
Melt Flow Sensitivity to Sample Properties and Changes in the Electromagnetic Field During Oscillating Drop Experiments in EML |
| Author(s) |
Gwendolyn P. Bracker, R. W. Hyers |
| On-Site Speaker (Planned) |
R. W. Hyers |
| Abstract Scope |
The oscillating drop technique is used to measure the surface tension and viscosity of a melt in electromagnetic levitation; however, this technique is sensitive to flow effects, such as turbulence. During oscillating drop measurements, the frequency and damping of surface oscillations are captured to determine the surface tension and viscosity of the melt at a given temperature. However, turbulence in the melt can dominate the damping coefficient and give the turbulent viscosity of the melt, a property of the flow and not of the melt itself. Transient magnetohydrodynamic models are used to evaluate the flow within the drop and the flow’s response to changes in the EML force field. The response of the flow depends on several variables including sample size, melt viscosity, melt conductivity, strength of the magnetic field, and duration of the excitation pulse. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Modeling and Simulation, Other |