Numerical Investigation on Influence of Nozzle Swirl Blade on Flow Field


Based on structure analysis of twist-tape swirl blade, solid model and computational fluid dynamics (CFD) model of swirl nozzle were presented respectively. By adjusting surface height and fixing position of the swirl blade, pressure and velocity fields of the nozzle were solved using CFD method, which made it possible to discuss the influence of the swirl blade on the flow field of the nozzle. Numerical calculation result shows that the surface height and the fixing position of the swirl blade have an important impact on the flow field. Rational design for the swirl blade of the nozzle is essential for different applications with desired flow fields.

  • Abstract
  • Keywords
  • 1 Introduction
  • 2 Sturcture of the Nozzle
  • 3 Calculational Model
  • 4 Numerical Calculation Results and Analysis
  • 5 Conclusions
  • References

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