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Free download Construct2D Linux app to run online in Ubuntu online, Fedora online or Debian online

This is the Linux app named Construct2D whose latest release can be downloaded as Construct2D_2.1.4.zip. It can be run online in the free hosting provider OnWorks for workstations.

Download and run online this app named Construct2D with OnWorks for free.

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Construct2D is a grid generator designed to create 2D grids for CFD computations on airfoils. The grids are generated in Plot3D format. The only required input file is the set of coordinates defining the airfoil geometry, using the same format as XFoil, the popular vortex-panel code for airfoil analysis. Construct2D can create grids with O topology (recommended for airfoils with a blunt trailing edge) or C topology (recommended for airfoils with a sharp trailing edge). Now available in version 2.0: hyperbolic grid generation to create higher quality grids in a fraction of the time compared to elliptic grid generation. Elliptic grid generation is still available also. Smooth airfoil surface spacing is handled automatically with user-controlled clustering parameters. Also included is a visualizer written in Python with matplotlib.


  • 2D structured grid generation designed for airfoils
  • 3D grid (extruded 2D planes) output capability
  • Hyperbolic grid generation is now available (v2.0) for fast, high-quality grids
  • Elliptic (poisson equation) grid generation is also available
  • C-grid or O-grid capability
  • Simple geometry input file format
  • Handles blunt or sharp trailing edges
  • Paneling subroutines adapted from XFoil for smooth distribution of points on airfoil surface
  • Menu-driven or input-file-driven
  • "PostPycess" script: grid and solution visualization with python & matplotlib
  • New in v2.0.4: Writes out a boundary condition file in NASA neutral map (.nmf) format.


Aerospace, Science/Research, Education, Engineering

User interface

Console/Terminal, Command-line

Programming Language

Fortran, Python



This is an application that can also be fetched from https://sourceforge.net/projects/construct2d/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.