Zhengyu Zheng. ANALYSIS AND APPLICATION OF THE TURBULENCE MODEL IN THE NUMERICAL SIMULATION OF CAR'S EXTERNAL AIR-FLOW FIELD[J]. MECHANICS IN ENGINEERING, 2011, 33(6): 30-34. DOI: 10.6052/1000-0879-lxysj2011-326
Citation: Zhengyu Zheng. ANALYSIS AND APPLICATION OF THE TURBULENCE MODEL IN THE NUMERICAL SIMULATION OF CAR'S EXTERNAL AIR-FLOW FIELD[J]. MECHANICS IN ENGINEERING, 2011, 33(6): 30-34. DOI: 10.6052/1000-0879-lxysj2011-326

ANALYSIS AND APPLICATION OF THE TURBULENCE MODEL IN THE NUMERICAL SIMULATION OF CAR'S EXTERNAL AIR-FLOW FIELD

  • A more reasonable computational fluid dynamics (CFD)analysis is carried out for the external aerodynamic characteristics of the high-speedcar in this paper. The realizable k-\varepsilon turbulence two equationsmodel of RNS methods based on the FVM (finite volume method) combined withthe enhanced wall treatment method is apllied to simulate the externalflow field of a car model with tires, side mirrors and antenna and otherprotruding parts under vehicle's different speed conditions. The resultsshow that the difference of the vehicle surface pressure along the x-directionleads to the car's aerodynamic drag; with the increased vehicle's speed, thecar's aerodynamic drag grows faster than the aerodynamic lift.
  • loading

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return