Heavy gas release experiments were performed in the wind tunnel. The situations studied include: open flat terrain, sloping terrain, and various kinds of obstacles. The results of these experiments form part of the Rediphem data base, which is publicly available.
The Rediphem data base at Risø Laboratories in Denmark contains descriptions and
results of a number of heavy gas dispersion experiments in the field and in wind tunnels.
Rediphem is particularly suited to storing long time series of measurements in a fairly
optimally compact binary form. The Rediphem browser allows these to be plotted and
exported to spreadsheets.
The contribution of Hamburg University Meteorological Institute to the Rediphem
data base is a series of wind tunnel experiments on heavy gas releases, in open flat
terrain and on slopes, and with various obstacles to the flow. For most of the geometries
illustrated, both steady continuous and instantaneous releases were studied. Here we
simply give a summary of the scenarios studied:
The obstacle geometries are shown here
The results are in the Rediphem data base.
About the Rediphem data base
These results of these experiments have been incorporated into the VDI (German
Engineering Society) guidelines on safety (see reference).
Further information is available in:
Experiments by K Marotzke and M
Summary for the World Wide Web by D M Webber
These pages Copyright © 1996 Universität Hamburg, Meteorologisches Institut