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Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber
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Huai-meng GU1, 2, Yan-wen WANG3, Lin LI1, 2, Ping-yuan WANG1, 2
Water Resources and Power | 2023, 41(10) : 145 - 148
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Water Resources and Power | 2023, 41(10): 145-148
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber
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Huai-meng GU1, 2, Yan-wen WANG3, Lin LI1, 2, Ping-yuan WANG1, 2
Affiliations
  • 1.School of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
  • 2.Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention, Urumqi 830052, China
  • 3.Xinjiang Tacheng District Water Conservancy and Hydropower Survey and Design Institute, Tacheng 834700, China
Published: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222649
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The flow field characteristics of vortex setting chamber (VSC) play a decisive role in its water and sediment separation performance. In order to clarify the influence of the inclination angle of the curved deflector on the flow field characteristics of VSC, the large eddy simulation and VOF method are used to study the three-dimensional flow field characteristics of the VSC when the inclination angles of the curved deflector are 5°, 10° and 15° respectively, and the flow field characteristics of the VSC with the plane deflector under the same inlet flow rate are compared. The results show that the use of curved cantilever deflector will increase the eddy current intensity in the VSC chamber and reduce the range of low velocity zone. The increase of the inclination angle can improve the stability of the air vortex, increase the strength and size of the air vortex, which is beneficial to the separation of water and sediment. The radial velocity in the cone area increases with the increase of the inclination angle, and basically points to the center of the VSC, which is conducive to the rapid transport of sediment to the bottom hole of the sediment discharge. The velocity of the overflow flow on the surface of the curved deflector is greater than that on the surface of the plane deflector, and the flow velocity on the deflector is the largest when the inclination angle is 15°.

vortex setting chamber  /  flow field characteristics  /  curved deflector  /  numerical simulation  /  large eddy simulation
Huai-meng GU, Yan-wen WANG, Lin LI, Ping-yuan WANG. Influence of Inclination Angle of Curved Overflow Deflector Taper on Flow Field Characteristics of Vortex Setting Chamber[J]. Water Resources and Power, 2023 , 41 (10) : 145 -148 . DOI: 10.20040/j.cnki.1000-7709.2023.20222649
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222649
  • Receive Date：2022-12-27
  • Online Date：2026-01-28
  • Published：2023-10-25
Article Data
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History
  • Received：2022-12-27
  • Revised：2023-02-08
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Affiliations
    1.School of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
    2.Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention, Urumqi 830052, China
    3.Xinjiang Tacheng District Water Conservancy and Hydropower Survey and Design Institute, Tacheng 834700, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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