• Title/Summary/Keyword: 개별입자추적법

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Numerical Simulation on Particle Dispersion in Axisymmetric Sudden-Expansion by Tracer Method (입자추적법에 의한 축대칭 급확대부의 입자확산현상 수치해석)

  • Park, Ounyoung;Yang, Hee Sung;Yim, Chung Sik
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2017.05a
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    • pp.766-774
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    • 2017
  • Software has been developed for simulating particle dispersion in a circular pipe with sudden-expansion, which models the fuel feeding system of a combustor that uses metal powder like aluminum as fuel. The Lagrangian based discrete tracer point method was employed for a plug flow of particles that satisfies local turbulent velocity fluctuations. A radial velocity component was created to improve the flow turning outwards in the recirculation zone. The particle distribution patterns from both with and without the component were directly compared with the experiments near the reattachment.

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