Last site update: January 11, 2012
This is for steady or unsteady three-dimensional flows.  It employs a DSMC architecture that is similar to that in DS2V, but has an older graphical interface and requires the definition of surfaces by external triangulation programs.
Home DSMC DS1V DS2V DS3V New Models Graeme Bird

Free downloadable DSMC programs for Windows

DS1V

This is a program for steady or unsteady plane, cylindrical or spherical flows. It includes an interactive program for data file generation and the source codes are included for both programs.  This is a “research code” that I am currently using for the development of molecular models and DSMC procedures.  It may include special routines related to current research and many potential applications have not been tested.  Users must be prepared to work at the code level if problems are encountered.

DS2V

This is a well established commercial quality visual interactive DSMC program for steady or unsteady plane or axially symmetric flows.  Users need only specify their problem in the data input windows and all computational parameters, apart from the total number of available megabytes, are set automatically by the program.  Continuing unsteady flows or the unsteady development of steady flows can be observed through the integrated graphics and a movie may be produced.  The program employs the latest DSMC procedures and a normal PC copes with near-continuum problems that would otherwise require a parallel cluster.  The program advises on the quality of the results that it has provided.

DS3V

DS2V and DS3V are now free programs and, while I no longer attempt to provide support, obvious problems will be corrected and procedures and models may be updated. The source code is not available, but parallel versions that also support Linux have been produced by Dr Martin Rose and are described at www.pi-dsmc.com.

Recent developments

I have commenced writing a new book simply entitled The DSMC Method.  A large proportion of the DSMC procedures in Molecular Gas Dynamics and the Direct Simulation of Gas Flows (OUP, 1994) have been either modified or superseded.  The new book will be concerned almost entirely with these DSMC procedures and will contain minimal background material.  I intend to publish through CreateSpace, an Amazon company. This will drastically reduce the cost of the publication and will permit more frequent updates.

  e-mail to  gab@gab.com.au