Tornado and downburst integrated physical simulation device

Abstract

The invention discloses a tornado and downburst integrated physical simulation device. The device comprises a simulation frame, a generator and a moving mechanism, wherein the generator comprises a tornado generator and a downburst generator, the tornado generator and the downburst generator are both arranged on the simulation frame, and the tornado generator and / or the downburst generator can move; the moving mechanism is arranged on the simulation frame and located below the generator, and the moving mechanism at least has four degrees of freedom. The device is advantaged in that the tornado and the downburst which have the characteristics of different forms, moving speeds, moving paths, wider range and the like are obtained, and the tornado and the downburst which are closer to the real tornado and the real downburst in the nature are simulated; wind field characteristics with angles and moving states in a tornado and downburst coupling state can be simulated, and the method is closer to actual conditions; switching of the tornado simulation experiment and the downburst simulation experiment in a short time is achieved, and the time cost and the economic cost for independently conducting the two simulation experiments are reduced.

Description

technical field [0001] The invention relates to a simulation device, in particular to a physical simulation device integrating a tornado and a downburst. Background technique [0002] Extreme convective weather such as tornadoes has the characteristics of small range of action, short duration, and strong action intensity. It is one of the most frequent and destructive natural disasters. Due to the dense population of tornado occurrence areas in my country, the foundation of tornado early warning system and disaster relief facilities is relatively weak. Therefore, judging from indicators such as the number of casualties and the degree of house damage, tornadoes have a great impact on my country, and the frequency of occurrences tends to increase year by year with global warming. A downburst is a strong downdraft that causes radiation-type disastrous winds on or near the ground. It generally occurs in thunderstorm clouds. The occurrence of destructive and catastrophic strong...

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Problems solved by technology

[0004] At present, for the physical experiment simulation of real tornadoes and downbursts under natural conditions, although there are simulators, the existing simulators have the following problems: (1) Tornadoes under natural conditions have many shapes, and oblique tornadoes may appear , tornadoes and downbursts under oblique downbursts and variable-speed random motions, and the moving trajectories of tornadoes and downbursts are irregular and have a wide range of movement. When performing simulation experiments, existing simulators can only The control panel is in a horizontal state and realizes two-dimensional translation within a limited range in the horizontal plane; (2) when the existing simulator is conducting experiments, it can only simulate the wind field characteristics when a single extreme weather occurs, and cannot simulate Wind field characteristics in the coupled state of tornado and downburst in the actual situation; (3) The existing simulator can only conduct one kind of simulation experiment in a short period of time, and the economic cost of constructing the simulator alone and switching the simulation experiment time spent is high

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