Abstract
The separation and extraction of condensate gas is important for natural gas processing. The purpose of this study is to investigate the effects of nozzle geometry on supersonic swirling flow with non-equilibrium condensation by numerical simulation. In this study, the unsteady three-dimensional compressible Navier-Stokes equations coupled with nucleation rate, turbulence kinetic energy, and specific dissipation rate equations were discretized in space using a cell-centered finite volume method based on the third-order MUSCL TVD scheme, Roe's approximate Riemann solver. The second-order central difference scheme was used for the viscous term. The Euler implicit method was used for the time integration. As a result, possibility of miniaturization of equipment was shown by using a swirl flow and divergence of a nozzle numerically.
