Volume 27 Issue 11
Nov.  2012
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Article Navigation >  Journal of Aerospace Power  > 2012  >  27(11): 2414-2420
HU Ya-ping, JI Hong-hu, BAI Tao-tao. Effect of turbulence models on numerical simulation of flow and infrared radiation characteristic of aero-engine exhaust system[J]. Journal of Aerospace Power, 2012, 27(11): 2414-2420.
Citation: HU Ya-ping, JI Hong-hu, BAI Tao-tao. Effect of turbulence models on numerical simulation of flow and infrared radiation characteristic of aero-engine exhaust system[J]. Journal of Aerospace Power, 2012, 27(11): 2414-2420.
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Effect of turbulence models on numerical simulation of flow and infrared radiation characteristic of aero-engine exhaust system

  • 1.

    College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • 2.

    China Research Institute of Air-to-Air Missiles, Aviation Industry Corporation of China, Luoyang, Henan 471009, China

  • Received Date: 2012-01-16
  • Publish Date: 2012-11-28
    Abstract
  • The flow field and infrared radiation (IR) characteristics of an aero-engine exhaust system were simulated with three turbulence models, including k-ω shear-stress transport (SST) model,renormalization group (RNG) k-ε model with standard wall functions and RNG k-ε model with enhanced wall functions.The results show that among the three methods, the static pressures are nearly the same,but the distributions of temperature,species and IR are different.The temperature of gas and the inner wall of inner duct,the mass concentration of species and IR are the greatest when RNG k-ε model with enhanced wall functions is used;those are the second when RNG k-ε model with standard wall functions is used,and the results of k-ω SST model are minimal.The comparison of experimental data and those of computation shows that the IR results of k-ω SST model are more reasonable.

     

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