Xcompact3D: An Open-Source Framework for Solving Turbulence Problems on a Cartesian Mesh

Paul Bartholomew, Georgios Deskos, Ricardo Frantz, Felipe Schuch, Eric Lamballais, Sylvain Laizet

Research output: Contribution to journalArticlepeer-review

49 Scopus Citations


Xcompact3D is a Fortran 90–95 open-source framework designed for fast and accurate simulations of turbulent flows, targeting CPU-based supercomputers. It is an evolution of the flow solver Incompact3D which was initially designed in France in the mid-90’s for serial processors to solve the incompressible Navier–Stokes equations. Incompact3D was then ported to parallel High Performance Computing (HPC) systems in the early 2010’s. Very recently the capabilities of Incompact3D have been extended so that it can now tackle more flow regimes (from incompressible flows to compressible flows at low Mach numbers), resulting in the design of a new user-friendly framework called Xcompact3D. The present manuscript presents an overview of Xcompact3Dwith a particular focus on its functionalities, its ready-to-run simulations and a few case studies to demonstrate its impact.

Original languageAmerican English
Article numberArticle No. 100550
Number of pages9
StatePublished - 1 Jul 2020

Bibliographical note

Publisher Copyright:
© 2020 The Authors

NREL Publication Number

  • NREL/JA-5000-77287


  • Cartesian mesh
  • Computational Fluid Dynamics
  • High Performance Computing
  • High-order finite-difference
  • Turbulence


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