Application of a General Purpose Flow Simulation Program as a Tool of Multi-Phase-Flow Simulation

摘要

In these two decades, remarkable progress has been made in computer equipment regarding their capability to perform arithmetic operations much more quickly and cheaply. Computational Fluid Dynamics is becoming much more popular and is applied to a lot of engineering fields. Many flow calculation programs are on the market and some of them are available even on personal computers.We use PHOENICS in Research Information Processing Station (RIPS) of our agency. The reason why we selected PHOENICS among some flow simulation cods is that it has features of multi-phase flow calculation from the beginning of its comming out. We have carried out the simulation of ventilation in the dome shaped underground space and dispersion phenomena of spilled propane gas.PHOENICS is one of the general purpose flow simulation program developed by Dr. D. B. Spading and his team of CHAM Ltd. in 1978, and the first version of the program debuted in 1982. Several times of improvements have been carried out and its functions have been broadening year by year. In RIPS, PHOENICS was installed in 1988. The version 1.6.6 of it was adopted to RIPS in autumn 1995 when the menu function, one of the graphic user interface system, was added and it became easier for us to make input file for the PHOENICS pre-processor called SATELLITE. With the version updated to PHOENICS 2.2.1 this spring, the new feature GENTRA, which is a particle tracking program and calculates particle trajectories by the Lagrangian equations, becomes ready to use.In this report, the outline of PHOENICS mainly about the functions of calculating multi-phase flows and its examples of application are explained.