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公开(公告)号：US12098977B2
公开(公告)日：2024-09-24
申请号：US17941102
申请日：2022-09-09
Applicant: Harbin Institute of Technology
Inventor： Feng Fan , Qingwen Zhang , Huamei Mo , Guolong Zhang
Abstract: The present disclosure provides a large-scale low-temperature controllable atmospheric boundary layer test system and method for wind and snow simulation. The system includes an atmospheric boundary layer wind tunnel, a plenum chamber and a refrigeration system. The atmospheric boundary layer wind tunnel includes an upper flow channel and a lower flow channel communicating with each other end to end. A power section is arranged in the upper flow channel. A settling chamber, a contraction section and a test section are sequentially arranged in the lower flow channel. Corners of a closed return wind tunnel are respectively provided with a transition section. A fan is disposed in the power section. An air heat exchanger is disposed in the settling chamber. The plenum chamber is divided by a partition into a storage room for storing snow particles and an operation room provided with a snow particle vibratory spreading device. The storage room is located at an upper part of the settling chamber. An air cooler is disposed in the storage room. The operation room is located at an upper part of the test section. The snow particle vibratory spreading device spreads snow particles that uniformly fall into the test section. The refrigeration system outputs a secondary refrigerant for heat exchange for the air cooler in the plenum chamber and the air heat exchanger in the atmospheric boundary layer wind tunnel. According to the present disclosure, the natural snowfall process is simulated through the cooperation of various parts of the system.
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2.发明公开公开(公告)号：US20230160776A1
公开(公告)日：2023-05-25
申请号：US17941102
申请日：2022-09-09
Applicant: Harbin Institute of Technology
Inventor： Feng Fan , Qingwen Zhang , Huamei Mo , Guolong Zhang
Abstract: The present disclosure provides a large-scale low-temperature controllable atmospheric boundary layer test system and method for wind and snow simulation. The system includes an atmospheric boundary layer wind tunnel, a plenum chamber and a refrigeration system. The atmospheric boundary layer wind tunnel includes an upper flow channel and a lower flow channel communicating with each other end to end. A power section is arranged in the upper flow channel. A settling chamber, a contraction section and a test section are sequentially arranged in the lower flow channel. Corners of a closed return wind tunnel are respectively provided with a transition section. A fan is disposed in the power section. An air heat exchanger is disposed in the settling chamber. The plenum chamber is divided by a partition into a storage room for storing snow particles and an operation room provided with a snow particle vibratory spreading device. The storage room is located at an upper part of the settling chamber. An air cooler is disposed in the storage room. The operation room is located at an upper part of the test section. The snow particle vibratory spreading device spreads snow particles that uniformly fall into the test section. The refrigeration system outputs a secondary refrigerant for heat exchange for the air cooler in the plenum chamber and the air heat exchanger in the atmospheric boundary layer wind tunnel. According to the present disclosure, the natural snowfall process is simulated through the cooperation of various parts of the system.
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