Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Numerical investigation of the recirculation zone formed downstream of a back ward facing step

  • Sarker, Konica (Department of Mechanical and Automotive Engineering, Kongju National University (KNU)) ;
  • Ali, Mohammad (Department of Mechanical Engineering, Bangladesh University of Engineering and Technology (BUET)) ;
  • Cho, Haeng Muk (Department of Mechanical and Automotive Engineering, Kongju National University (KNU)) ;
  • Mahmud, Md. Iqbal (Department of Mechanical and Automotive Engineering, Kongju National University (KNU))
  • Received : 2015.04.02
  • Accepted : 2015.06.05
  • Published : 2015.06.30
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Abstract

A numerical investigation has been carried out on recirculation zone formed downstream of a compressible flow over a backward facing step. The study has been performed by solving Two-Dimensional Navier-Stokes equations. The system of governing equations has been solved, using an explicit Harten-Yee Non- MUSCL Modified flux type TVD scheme and a zero-equation algebraic turbulence model to calculate the eddy viscosity coefficient. The recirculation region dimensions are characterized over a range of Mach numbers of fixed step height 5mmThe detail of recirculation zone such as pressure, temperature, recirculation length, strength etc are reported. The variations of these characteristics due to change of Mach number are also presented.

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References

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