31 January 2014
Another update for the Windows versions of sumo with platform-specific fixes.

6 December 2013
Update for the Windows versions of sumo which fixes an i/o-bug for this platform.

28 November 2013
sumo updated to version 2.6.5 with experimental RANS-mesh generation. Mac version updated for OS 10.9. Many bugfixes in scope's FEM mesh import, new support for SU2 meshes.

16 January 2013
sumo updated to version 2.5.5 (Fix for IGES-export bug on Windows)

29 November 2012
sumo updated to version 2.5.4, bugfix release, new support for SU2 mesh formats.

7 September 2012
sumo updated to version 2.5.2, with support for airfoil fitting, more flexible batch mode, TAU mesh support (except on 32bit-Windows).

21 September 2011
sumo updated to version 2.1.3 (bugfix release)

9 June 2011
sumo updated to version 2.1.1 with improved IGES overlay support.


Larosterna is a small software development business started in June 2009 by a researcher of the Flight Dynamics Lab at the Royal Institute of Technology in Stockholm. With eight years of experience in implementing high-performance, multithreaded algorithms in C++, Larosterna offers implementation services to solve computationally demanding problems.

open source software

To support research in the 2006-2008 NFFP project DirSim, a surface modeling tool and mesh generator (sumo) and a visualization program (scope) were developed. In 2008, the EU project SimSAC sponsored further improvement of sumo. Both programs are open source software distributed under the terms of the GPL, v2.

modeling and mesh generation

sumo: aircraft surface modeler The surface modeler sumo is a graphical tool aimed at rapid creation of aircraft geometries and automatic surface mesh generation. Sumo is not a CAD system, but rather a easy-to-use sketchpad, highly specialized towards aircraft configurations. Read more...

visualization for aeroelasticity

scope: visualization for aeroelasticity Scope is a visualization program to display results generated by the potential flow solver dwfs, such as surface data, flutter modeshapes and flight trajectories. Furthermore, it can read NASTRAN bulk data files as well as modal analysis results and animate eigenmode shapes. Read more...