Applied Mathematics and Mechanics

, Volume 34, Issue 5, pp 577–588 | Cite as

Validation of 1D model for methane/air/Pt combustion in stagnation flow

  • Ming-hou Liu (刘明候)Email author
  • Dan Xing (邢丹)
  • Yu-zhou Lu (陆雨洲)
  • Hui-yuan Zhu (朱会元)


A 2D model is built on the package of FLUENT to study the effects of radial aspect ratio (R/W), length-to-width ratio (L/W), strain rate (S R), and buoyancy (Ri=Gr/Re 2) on the validation of the simplified 1D model. In the present 2D model, the methane/air homogeneous reaction mechanism of Peters and the methane/air/platinum heterogeneous reaction mechanism of Deutschmann are applied. By comparison between the 1D and 2D numerical results, it is found that the validation of 1D model is highly related with the catalytic stagnation reactor configuration. For length-to-width ratio L/W = 1 configuration, 1D laminar model is applicable when the radial aspect ratio R/W > 0.4. For R/W = 0.6, the reactor exhibited 1D characteristics when L/W < 1. Compared with the temperature and species profiles, the velocity distribution along the axis is more sensitive to the change of radial aspect ratio and length-to-width ratio. With increasing of the strain rate, the flame front goes closer to the catalytic wall surface and the difference between the 1D and 2D results decreases. For a valid 1D simulation, it is recommended that the strain rate should be greater than 20 s-1. The effects of natural convection can be neglected when Ri < 5.

Key words

stagnation flow catalytic reaction validation of 1D model 

Chinese Library Classification


2010 Mathematics Subject Classification

80A32 76V05 


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Copyright information

© Shanghai University and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Ming-hou Liu (刘明候)
    • 1
    Email author
  • Dan Xing (邢丹)
    • 1
  • Yu-zhou Lu (陆雨洲)
    • 1
  • Hui-yuan Zhu (朱会元)
    • 1
  1. 1.Department of Thermal Science and Energy EngineeringUniversity of Science and Technology of ChinaHefeiP. R. China

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