Abstract
A numerical method based on the preconditioned method coupled with PROPATH is applied to mixing flows of supercritical water and water liquid in a T-shape channel which is used as a reactor of supercritical hydrothermal synthesis. PROPATH has accurate thermophysical properties of gas, liquid and supercrtical-fluids. Since the thermophysical properties such as density and viscousity change anomalously near the critical point, the mixing flow of supercritical-fluid and liquid is quite different from that of gases or liquids. The calculation ignoring several thermophysical property changes indicates that accurate thermophysical properties are certainly required for evaluating supercritical-fluid flows with phase change. The prediction of buoyancy effecrt to the flows is also quite important to get the real flow fields.
Original language | English |
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Pages (from-to) | 771-777 |
Number of pages | 7 |
Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
Volume | 76 |
Issue number | 765 |
DOIs | |
Publication status | Published - 2010 May |
Keywords
- Hydrothermal synthesis
- PROPATH
- Phase change
- Preconditioning method
- Supercritical fluids
- Water
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering