気液二相流型粒子法に基づく落水グラフィックスの提案

• 後藤 仁志

  京都大学工学研究科都市環境工学専攻

• 橋本 麻未

  京都大学大学院修士課程都市環境工学専攻

• 五十里 洋行

  京都大学大学院博士後期課程都市環境工学専攻

• 酒井 哲郎

  京都大学工学研究科都市環境工学専攻

書誌事項

タイトル別名

• WATERFALL CG BASED ON PARTICLE METHOD WITH GAS-LIQUID TWO-PHASE FLOW MODEL

抄録

Graphics of falling-water texture are produced by the frame work to combine the sub-particle-scale (SPS) texture model for splash with the particle method for a physical skeleton. A texture of splash is described as the diffusion process of mist by the random walk model. A gas-liquid two-phase-flow model is used for a calculation of falling-water and resultant air-flow field. Governing equation of the pressure that express the compressibility of gas phase is applied. The computational program is improved so that a stable solution is provided in the gas-liquid interface under high-level change of pressure. A conventional diffusion model is improved so that the unsteady and non-uniform structure of air flow affects directly on the motion of mist. The hybrid tracking model of a droplet and an air bubble is proposed on the basis of a random walk model. Finally, the graphics of falling water are drawn by the ray tracing technique.

収録刊行物

• 水工学論文集

  水工学論文集 49 763-768, 2005

  公益社団法人 土木学会

キーワード

• sub-particle-scale texture
• falling water
• gas-liquid two-phase-flow
• random walk
• ray tracing

詳細情報

• CRID: 1390001205169694336
• NII論文ID: 130003842218
• DOI: 10.2208/prohe.49.763
• ISSN: 18849172
• ISSN: 09167374
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可