SIMULATION OF LAGRANGIAN POLLUTANT IN JAKARTA URBAN DISTRICT USING LATTICE BOLTZMANN METHOD

• YOKOUCHI Hiroshi

  東京工業大学 環境・社会理工学院融合理工学系

• INAGAKI Atsushi

  東京工業大学 環境・社会理工学院融合理工学系

• KANDA Manabu

  東京工業大学 環境・社会理工学院融合理工学系

• ONODERA Naoyuki

  原子力研究開発機構 システム計算科学センター

Bibliographic Information

Other Title

• 格子ボルツマン法によるジャカルタ都市街区のラグランジュ粒子状汚染物質シミュレーション

Abstract

 Hight-resolution pollutant model embedded into Lattice Boltzmann method (LBM) is constructed. We focuse on Particle pollutants. Flow field is calculated using D3Q27 model of LBM and particle is calculated by Lagrangian method. Using this model, we discuss the change in concentration distribution when there is a huge building (GARUDA) in Jakarta as a application.  As a result, we can find the relation of differences in particle density and differences in flow velocity due to GARUDA. When the velocity in the case w/o GARUDA is faster than the other, particle velocity in the case w/o GARUDA is reduced. The reverse is also possible. And also, we can find the velocity near the solid boundary is underestimated and the particle density is higher than theoretical value. However, this model is valid far away from the solid boundary.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76 (2), I_253-I_258, 2020

  Japan Society of Civil Engineers

Keywords

• lattice Boltzmann method
• GARUDA
• Lagrange model
• urban boundary layer
• mobile emisson

Details

• CRID: 1390290229666129408
• NII Article ID: 130008122606
• DOI: 10.2208/jscejhe.76.2_i_253
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/76/2/76_I_253/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed