The Chinese Corporation AVIC have tested promising transonic wind tunnel FL-62 at full load. As reports Jane’s, during the tests held on 1 April 2020, the compressor unit of the wind tunnel was developed for a capacity of 80 megawatts. Held trials considered completely successful.
The wind tunnel allow us to estimate the behavior of a particular layout developed of the aircraft or some of its elements in the air stream. Thanks to this setup, the researchers, in particular, can appreciate the aerodynamic noise, resistance, flow, adhesion of the air flow and formation of turbulent flows.
On the construction of the wind tunnel FL-62 of AVIC was first announced in 2018. This is China’s first transonic wind tunnel, designed for continuous operation. This facility has a closed circuit (air is pumped by the compressor into the annular closed chamber) and a test chamber in which to place the model up to a width of 2.4 meters and a height of 2.4 meters.
The mass of the entire setup is 6.6 tons. The diameter of the coaxial compressor — 6 meters. FL-62 can be used for long purging of model aircrafts in the air flow velocity from 0.3 to 1.6 Mach. In promising the wind tunnel in the first place it is planned to conduct research of models of new fighters.
In 2018, China also is building a hypersonic wind tunnel. This structure will be able to create a transient flow of gas with velocities up to Mach 25. The length of the pipe project will be 265 meters.
For the creation of hypersonic air flow it will be the responsibility of the detonation chamber. It is assumed that they will create a mixture of oxygen, hydrogen and nitrogen, which will then be ignited and explode. Due to the explosion will create high-speed gas flow.