Dust Roll Simulator

Abstract

A device for simulating dust rolls, comprising a sand blower, a rotary flow field device mounted on the sand blower, and a ventilation fan mounted on the rotary flow field device; the rotary flow field device includes a cylinder, mounted on a circular A number of vertical pipes inside the tube, a number of blowers, connecting pipes connected to the vertical pipes and blowers respectively; a number of air outlets arranged at intervals are arranged on the side wall of each vertical pipe, and the air outlet direction of the air outlet is composed of each vertical pipe. tangent to the circumference; the wind generated by the blower enters the vertical pipe through the connecting pipe, and generates a rotating flow field in the cylinder along the air outlet, forcing the sand grains entering the cylinder from the bottom to spiral upward. The dust roll simulation device establishes a dust roll phenomenon simulation device by adding vertical pipes in the drum, increasing the speed of the flow field, and gathering dust rolls, which provides conditions for scientific experimental research on the internal flow field of dust rolls.

Description

technical field [0001] The invention relates to a simulator of natural weather, in particular to a dust roll simulation device, which belongs to the field of science popularization, teaching and research. Background technique [0002] Sandstorms have been widely concerned by scientists because of their serious impact on regional climate, ecological environment, and people's life safety. Dust rolls are a unique meteorological phenomenon full of scientific charm, which can cause dust to rise to a height of several hundred meters with a small wind speed; the understanding of its flow field structure and sand blowing mechanism will help people understand sandstorms The dust blowing mechanism of the process, so that it is possible to establish a corresponding physical model. [0003] However, related researches are mainly carried out through theoretical conjectures and computer simulation verification, lacking the first-hand meteorological data in the process of real dust rolls....

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Problems solved by technology

[0003] However, related research is mainly carried out through theoretical conjectures, computer simulation verification, etc., and lacks first-hand meteorological data in the process of real dust rolls

The main reason is that the dust roll phenomenon under natural conditions appears in an almost random state, and researchers cannot predict the occurrence time or location in advance, so they cannot install scientific research instruments at the place where the dust roll occurs to obtain meteorological data and other information during the dust roll process. This shortcoming is To a certain extent, it directly limits the development of relevant scientific research activities.

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