Compact Airline Design of an Automotive Scaled Model Wind Tunnel And its Computational Fluid Dynamics Validation
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1.Shanghai Automotive Wind Tunnel Center of Tongji University, Shanghai 201804, China;2.College of Automotive Engineering, Tongji University, Shanghai 201804, China

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U467.5

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    Abstract:

    Inadequate land availability is a common engineering issue for automotive wind tunnel planning. To ensure no compromise of the design criteria for nozzle area and test section length, a compact airline design has to be adapted for smaller land occupancy. Meanwhile, the core wind tunnel specifications such as flow qualities and energy ratio shall also be guaranteed with no concession. Using computational fluid dynamics (CFD) simulation, the study has performed risk assessment regarding flow separation and secondary flows in shorten diffusors. Dimensions and spacing distance of turning vanes has been optimized as well for best flow uniformity and turbulence level at the exit of corner 4. Wind tunnel land occupancy ratio is proposed as the economic specification of wind tunnel engineering. Compared with the basic design, the compact airline gives approximately 30% saving of land occupancy.

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PANG Jiabin, LI Tiantian, LIU Xiaohui, PENG Wei, WANG Jiaxin. Compact Airline Design of an Automotive Scaled Model Wind Tunnel And its Computational Fluid Dynamics Validation[J].同济大学学报(自然科学版),2022,50(S1):73~78

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History
  • Received:October 25,2022
  • Revised:
  • Adopted:
  • Online: June 04,2024
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