PArallel, Robust, Interface Simulator (PARIS)

Paris (PArallel, Robust, Interface Simulator) is a finite volume code for simulations of immiscible multifluid or multiphase flows. It based on the “one-fluid” formulation Navier–Stokes equations where different fluids are treated as one material with variable properties, and surface tension added singular interface force. The fluid solved regular structured staggered grid using an explicit projection method first-order second-order time integration scheme. separating tracked by Front-Tracking (FT) method, represented connected marker points, Volume-of-Fluid (VOF) function advected directly fixed grid. written in Fortran95/2002 parallelized MPI domain decomposition. several earlier FT VOF codes such Ftc3D, Surfer Gerris. These similar ones, well Paris, have been used to simulate wide range Program Title: PArallel Robust Simulator — CPC Library link program files: https://doi.org/10.17632/5cb2yrfx7r.1 Licensing provisions: GPLv3. Programming language: Fortran95/2002. Parallelized Nature problem: free code, software, computational dynamics (CFD) flows (or (CMFD)), specialized numerical simulation interfacial flows, involving droplets, bubbles waves, described book Tryggvason, Scardovelli Zaleski [1]. solves Euler one-fluid two-phase flow, including computes complex fast atomizing jets expanding cavitation bubble clusters flow through porous media. Solution method: mostly implements methods Time stepping performed predictor–corrector step pressure. Spatial discretization volumes cuboid tracking method. In version uses either Lagrangian-Explicit (LE) advection exactly mass-conserving Weymouth Yue [2]. normal computation Mixed-Youngs-Centered (MYC) A mass–momentum has also implemented that consistent [3]. Curvature computed Height Function (HF) This combined balanced Continuous Surface Force (CSF) compute forces. If phase can be neglected, run free-surface specifying homogeneous pressure, at most varying time, neglected phase. case jets, algorithm detect isolated advects them Lagrangian point-particles possibly merge again main stream Additional comments: extended from inspired following codes: Ftc3D: Front Tracking 3D Gretar Tryggvason Sadegh Dabiri. Surfer: Stephane Zaleski, Jie Li, Ruben others. Gerris: solver Adaptive Mesh Refinement (AMR) Popinet. References [1] G. R. Scardovelli, S. Zaleski. Direct Numerical Simulations Gas–Liquid Multiphase Flows. Cambridge University Press, 2011. [2] D. Dick K. P. Yue. Conservative Cartesian-grids. Journal Computational Physics, 229(8):2853–2865, April 2010. [3] T. Arrufat, M. Crialesi-Esposito, Fuster, Y. Ling, L. Malan, Pal, consistent, incompressible grids, Computers & Fluids, 215, 104785, 2021.