Subsonic and transonic wind tunnel

（重定向自Low speed wind tunnel）

Floor plan of Eiffel's 1912 laboratory at Auteuil, Paris, with two open-return wind tunnels

Schematic of an open wind tunnel with a closed test section

Schematic of a closed (return-flow) wind tunnel

Low-speed wind tunnels are used for operations at very low Mach number, with speeds in the test section up to 480 km/h (~ 134 m/s, M = 0.4) (Barlow, Rae, Pope; 1999). They may be of open-return type (also known as the Eiffel type, see figure), or closed-return flow (also known as the Prandtl type, see figure) with air moved by a propulsion system usually consisting of large axial fans that increase the dynamic pressure to overcome the viscous losses.

单词	Low speed wind tunnel
释义	Low speed wind tunnel 英语百科 Subsonic and transonic wind tunnel （重定向自Low speed wind tunnel） Low-speed wind tunnels are used for operations at very low Mach number, with speeds in the test section up to 480 km/h (~ 134 m/s, M = 0.4) (Barlow, Rae, Pope; 1999). They may be of open-return type (also known as the Eiffel type, see figure), or closed-return flow (also known as the Prandtl type, see figure) with air moved by a propulsion system usually consisting of large axial fans that increase the dynamic pressure to overcome the viscous losses.
随便看	wedge pressure of pulmonary arteriol的意思 wedge pressure of pulmonary artery的意思 Wedge Pressure,Pulmonary的意思 Wedge Pressures的意思 Wedge Pressures,Pulmonary的意思 wedge press, wedge spindle press, toggle press, crankshaft press的意思 Wedge prism的意思 wedge prisms的意思 wedge probe的意思 wedge product的意思 wedge product of spheres的意思 wedge products的意思 wedge prop的意思 wedge pulmonary arteriography的意思 wedge pyrometer的意思 wedge quartz的意思 wedger的意思 wedge rail anchor的意思 wedge relaxation function的意思 Wedge resection的意思 wedge resection of bronchus的意思 wedge resection of lung的意思 wedge resection of ovary的意思 wedge ring的意思 wedge riser flange的意思