Economic and efficient opening direct current type ice wind tunnel

Abstract

The invention discloses an economic and efficient opening direct current type ice wind tunnel, which comprises an air inlet, a power section, a diffusion section, a stabilization section, an ice and snow particle generating section and a test section in sequential connection, wherein a liquid nitrogen spray head and a pneumatic spray head are arranged in the ice and snow particle generating section, the nitrogen spray head is connected with a liquid nitrogen source through a liquid nitrogen pipeline for forming a liquid nitrogen refrigeration system, and the pneumatic spray head is connected with a pressure air source and a pressure water source through a mixing pipeline for forming a water particle generating system; a fan is arranged in the power section. The economic and efficient opening direct current type ice wind tunnel has the advantages that the process is simple, the single-time test cost is low, the test efficiency is high, and the manufacturing cost is low. The defects that the large-scale ice wind tunnel needs to be provided with large-scale refrigeration deicing equipment, the cost is high, and in addition, the test period is long are overcome. The requirements of ordinary ice and snow particle fluid teaching and scientific research and experiments can also be met.

Description

technical field [0001] The invention relates to an economical and efficient open-flow direct-flow ice wind tunnel, which can be used for the research on the flow of ice crystal-containing particles in the field of aerospace and the simulation of the drift of large-span building roofs and surrounding wind-induced snow in the field of building structure engineering. Background technique [0002] A wind tunnel is a pipe-shaped experimental device that can artificially generate and control airflow to simulate the flow of air around an aircraft or object, measure the effect of airflow on an object, and observe physical phenomena. Effective tool. Wind tunnel tests not only play an important role in the research and development of aviation and aerospace engineering, but also play an increasingly important role in transportation, housing construction and other fields with the development of industrial aerodynamics. It has the following significant advantages: ① It can control the e...

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Problems solved by technology

[0004] In order to solve the technical problems in the known technology, the present invention provides an economical and efficient open-flow direct-flow ice wind tunnel, which not only overcomes the shortcomings of large-scale ice wind tunnels that need to be equipped with large-scale refrigeration and deicing equipment, high cost and long test period, It can also meet the requirements of general ice and snow fluid teaching and scientific research experiments

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