DAN-W is a windows-based geotechnical software tool used for dynamic runout analysis
of rapid landslides and rock avalanches. The program accepts user-input data in the
form of path slope and initial sliding mass geometries, and material properties based
on eight types of rheologies. For pseudo-three-dimensional analysis, the width of the
slide can also be specified. A Lagrangian solution of the integrated equations of motion
is then implemented for thin elements of the flowing mass. The sliding mass is animated
on the screen as the calculation progresses. The model also simulates erosion and
deposition of material. Output data includes:
Important DAN-W update:
Holders of DAN-W licences, please contact OHGRI to receive instructions on how to update to Release 10.
- horizontal distance travelled by the sliding mass,
- velocity and flow depth along the path and at pre-determined observation points,
- time of travel,
- final slide mass volume,
- and detailed geometry and physical data for each time step.
DAN-W is based on a theory of runout analysis developed by Hungr (1995). For further information,
please download the following PDF references:
Hungr, O., 1995.
A model for the runout analysis of rapid flow slides, debris flows and avalanches.
Canadian Geotechnical Journal, 32(4):610-623. (1300Kb)
Hungr, O. and Evans, S.G., 1996.
Rock avalanche runout prediction using a dynamic model.
Procs., 7th. International Symposium on Landslides, Trondheim, Norway, 1:233-238. (200Kb)
To view the user's manual for DAN-W, please download the following PDF file:
For further information, please email OHGRI at: