At a glance: Characteristics of FL-62 wind tunnel

Approved for construction in 2012, China’s first large continuous transonic wind tunnel, called FL-62, become operational in 2020. After one-year operation, it has conducted over two dozen testing campaigns to support aerodynamic research and product development projects.

The main characteristics:

Ø Test section: 2.4m×2.4m×9.6m (height × width × length)

Ø Mach number: Ma=0.15~1.15 (slotted wall test section)

Ma=0.15~1.6 (perforated wall test section)

Ø Total temperature: T₀=293K (20℃) ~ 333K (60℃)

Ø Total pressure: P₀=0.01MPa~0.4MPa

Ø Reynolds number: up to 12.8×10⁶

Ø Control accuracy of Mach number:±0.001

Ø Control accuracy of total pressure:≤0.1%

Ø Uniformity of core flow:≤0.002(M<1.0)

Ø Turbulence: ≤0.3%(M<1.0, slotted wall test section)

Ø Pulsating pressure coefficient of core flow: ≤0.9% (M<1.0, slotted wall test section)