International Journal of Aeronautical and Space Sciences

  • 제15권4호
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  • Pages.366-373
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  • 2014
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  • 2093-274X(pISSN)
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  • 2093-2480(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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Simulation of Conceptual Designs of a Three-Surface Stealth Strike Fighter

  • Kuizhi, Yue (Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University, School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics) ;
  • ShiChun, Chen (School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics) ;
  • Wenlin, Liu (Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University) ;
  • Dazhao, Yu (Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University)
  • 투고 : 2014.07.08
  • 심사 : 2014.11.07
  • 발행 : 2014.12.30
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초록

A conceptual design of a three-surface strike fighter was studied and stealth performance was taken into account to enhance survivability and battle effectiveness. CATIA was used to design the aircraft's three-dimensional prototype model and the weapon carriage arrangement was also studied. The aircraft's RCS characteristics and distributions under X, S, C, and L bands were simulated using the RCSPlus software, which is based on the PO method. Pressure and velocity distributions of the flow field were also simulated using CFD. A turbulence model was based on standard $k-{\varepsilon}$ function and N-S functions were used during the CFD computation. Lift coefficients, drag coefficients, and lift-to-drag ratio were obtained by aerodynamic simulation. The results showed that: (1) the average value of head-on RCS between ${\pm}30^{\circ}$ is below -3.197 dBsm, and (2) the lift coefficient is 0.34674, the drag coefficient is 0.04275, and the lift-to-drag ratio is 8.11087 when the attack angle is $2.5^{\circ}$.

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피인용 문헌

  1. RCS Numerical Simulation of Stealth Modified Three-Surface Aircraft vol.17, pp.1, 2016, https://doi.org/10.5139/IJASS.2016.17.1.101
  2. Accurate Analysis of Target Characteristic in Bistatic SAR Images: A Dihedral Corner Reflectors Case vol.18, pp.1, 2017, https://doi.org/10.3390/s18010024