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Numerical and experimental study of transport phenomena in directional solidification of succinonitrile
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | de Groh, Henry C. Yao, Minwu |
| Copyright Year | 1994 |
| Description | A numerical and experimental study of the growth of succinonitrile (SCN) using a horizontal Bridginan furnace and transparent glass ampoule was conducted. Two experiments were considered: one in which the temperature profile was fixed relative to the ampoule (no-growth case); and a second in which the thermal profile was translated at a constant rate (steady growth case). Measured temperature profiles on the outer surface of the ampoule were used as thermal boundary conditions for the modelling. The apparent heat capacity formulation combined with the variable viscositymeth~ was used to model the phase change in SeN. Both 2-D and 3-D models were studied and numerical solutions obtained using the commercial finite element code, FIDAP1. Comparison of the numerical results to experimental data showed excellent agreement. The complex 3-D shallow-cavity flow in the melt, differences between 2-D and 3-D models, effects of natural convection on the thermal gradient and shape of the solid/liquid interface, and the sensitivity of simulations to specific assumptions, are also discussed. |
| File Size | 979166 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150022247 |
| Archival Resource Key | ark:/13960/t20c9w75v |
| Language | English |
| Publisher Date | 1994-01-01 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Fluid Mechanics And Thermodynamics Composite Materials Directional Solidification Crystals Transport Properties Furnaces Simulation Ampoules Two Dimensional Models Temperature Profiles Succinonitrile Three Dimensional Models Free Convection Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
