Man-Made Tornadoes
Man-Made Tornadoes
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作者：
J. Dessens
The observations of phenomena described in this article were unfortunately obtained with too few quantitative data; this was because from the beginning the experiments on the plateau of Lannemezan (20 km. north of the Central Pyrenees Mountains) were undertaken with the object of producing a strong ascending column generating a cumulus cloud, and for the study of this system vipwed as a whole. The apparatus built for the production of this warm air colnmn is called the Meteotron; it consists of two pumps driving one ton of fuel per minute, pressurized at 60 kgm./cm.., to 100 burners regularly spaced over an area 125 x 125 m. In these conditions, the 100 burners have a calorific power of about 7 x lOa kW.; it is possible to vary the number of burners and thereby the calorific power of the ensemble.
