{"id":1689,"date":"2023-12-07T18:05:27","date_gmt":"2023-12-07T09:05:27","guid":{"rendered":"http:\/\/localhost:8029\/windcenter\/?page_id=1689"},"modified":"2025-01-27T10:22:35","modified_gmt":"2025-01-27T01:22:35","slug":"windtunnel","status":"publish","type":"page","link":"https:\/\/www.niit.ac.jp\/windcenter\/en\/about\/windtunnel\/","title":{"rendered":"Large Boundary Layer Wind Tunnel"},"content":{"rendered":"

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Atmospheric Boundary Layer Wind Tunnel<\/h1>\n

This wind tunnel is used for measuring wind speed, wind pressure, and pollutant dispersion around buildings
\nby exposing scaled buildings and other structure models to wind that simulates the atmospheric boundary
\nlayer flow over the built environment.
\nIt has a large measurement section of 1.8 m (width) \u00d7 1.8 m (height) \u00d7 13.0 m (length), making it one of the
\nlargest wind tunnels for architectural purposes in Japan. This wide cross-section enables more accurate and
\ndetailed measurements. The maximum wind speed is approximately 23 m\/s.<\/p>\n<\/div>\n

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Exterior<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Test section<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Fan<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Scaled urban model<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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NIIT Atmospheric Boundary Layer Wind Tunnel Specifications<\/h1>\n<\/div>\n
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Wind Tunnel<\/h2>\n\n\n\n\n\n
Type<\/th>\nOpen and Closed-circuit<\/td>\n<\/tr>\n
Cross-section<\/th>\n1.8m\u00d71.8m<\/td>\n<\/tr>\n
Section length<\/th>\n16m\uff0813m to turntable center\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Fan<\/h2>\n\n\n\n\n\n
Type<\/th>\nDouble suction wide fan<\/td>\n<\/tr>\n
Flow volume<\/th>\n5,832 \u33a5\/min<\/td>\n<\/tr>\n
Total pressure<\/th>\n60mmAq<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Electric motor<\/h2>\n\n\n\n\n\n
Type<\/th>\nClosed-draft type<\/td>\n<\/tr>\n
Output<\/th>\n132kW<\/td>\n<\/tr>\n
Base rotation speed<\/th>\n1150rpm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Main Measuring Instruments<\/h2>\n
    \n
  • PIV\uff08Particle Image Velocimetry\uff09System\uff082D, 3D\uff09<\/li>\n
  • High-speed total hydrocarbon analyzer<\/li>\n
  • Hot-wire anemometers<\/li>\n
  • Multi-point thermistor anemometer<\/li>\n
  • Multi-point transducer<\/li>\n
  • High response transducer<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

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