Abstract
A numerical method for simulating near-critical carbon-dioxide flows in a micro-channel is presented. This method is based on the preconditioning method applied to the compressible Navier-Stokes equations. The Peng-Robinson equation of state is introduced to evaluate the properties of near-critical fluids. As numerical examples, Near-critical carbon-dioxide flows in a square cavity and in a micro-channel are calculated and the calculated results are compared with the experimental data and the theoretical results. Finally, we demonstrate that the compressibility dominates the near-critical carbon-dioxide flows in a micro-channel even if the flow is very slow and the Reynolds number is very low.
Original language | English |
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Pages (from-to) | 532-539 |
Number of pages | 8 |
Journal | JSME International Journal, Series B: Fluids and Thermal Engineering |
Volume | 48 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2006 Feb 15 |
Keywords
- Micro-channel
- Near-critical fluids
- Numerical method
- Preconditioning method
ASJC Scopus subject areas
- Mechanical Engineering
- Physical and Theoretical Chemistry
- Fluid Flow and Transfer Processes