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Shock Wave Detection and 64 Times Resolution Flow Simulation based on Image-Processing/Fluid-Dynamics

Research Project

Project/Area Number 19K04834
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 24010:Aerospace engineering-related
Research InstitutionYokohama National University

Principal Investigator

Kitamura Keiichi  横浜国立大学, 大学院工学研究院, 准教授 (20402547)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords衝撃波 / 画像処理 / 画像認識 / 圧縮性流体力学 / 数値流体力学 / CFD / エッジ検出 / 航空宇宙工学 / 流体力学 / 空気力学
Outline of Research at the Start

本研究では,画像処理(情報工学分野)におけるエッジ検出法『Canny法』を衝撃波に応用する事で,衝撃波を自動で簡単かつ正確に検知する.そしてこれを組み込んだ従来比64倍解像度の高精度流体シミュレーション方法を構築する.
衝撃波は圧縮性流体における物理量の不連続面であり,理学・工学・医学などの様々な分野に現れる.本研究で衝撃波を簡単かつ正確に検知し,これを利用した高解像度シミュレーションを行えば,新しい航空宇宙機設計,超新星爆発の解明,災害軽減,治療法改善などが期待される.

Outline of Final Research Achievements

A new method for detecting shockwaves has been developed, named "CEDRIC (Canny-Edge-Detection / Rankine-hugonIot-Conditions unified shock sensor)." This method successfully captured the shockwave continuously with much smaller errors compared with the existing method.
Then, it was combined with our base flux function "SLAU2," resulting in "C-SLAU2." Although "C-SLAU2" did not show a significant improvement over "SLAU2" against anomalous solutions at shockwaves, it offered a deeper insight into further algorithm developments in the future. We also tried to extend "SLAU2" to multiphase flows and MHD (Magnetohydrodynamics) with success.

Academic Significance and Societal Importance of the Research Achievements

本研究により,衝撃波の滑らかかつ誤差の少ない自動検知に成功した.自動で衝撃波位置を正確に検知できれば人間では探せない衝撃波も精度良く発見できる.また非専門家や初心者も安心して衝撃波を特定できる.また,これにより「真に衝撃波でのみ安定」に計算できれば,それ以外の場所では高い精度を保ち,起きている流体現象をより良く解像できる.
これらは超新星爆発や太陽内部流れなど宇宙物理の解明,新しい航空宇宙機の設計,結石治療など理・工・医学の様々な分野に貢献する.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 4 results) Book (1 results)

  • [Int'l Joint Research] UNIST(韓国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Side Force Characteristics of Slender-Bodied Supersonic Vehicle with Two Protuberances2022

    • Author(s)
      Tsutsui Fumiya、Takagi Yuya、Takimoto Hiroyuki、Kitamura Keiichi、Nonaka Satoshi
    • Journal Title

      Journal of Spacecraft and Rockets

      Volume: 59 Issue: 5 Pages: 1697-1712

    • DOI

      10.2514/1.a35319

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] An appropriate numerical dissipation for SLAU2 towards shock-stable compressible multiphase flow simulations2022

    • Author(s)
      Aono Junya、Kitamura Keiichi
    • Journal Title

      Journal of Computational Physics

      Volume: 462 Pages: 111256-111256

    • DOI

      10.1016/j.jcp.2022.111256

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical and experimental study on the behavior of vortex rings generated by shock?bubble interaction2022

    • Author(s)
      Kitamura K.、Yue Z.、Fujimoto T.、Asai H.、Kubota A.、Myokan M.、Ichihara D.、Sasoh A.
    • Journal Title

      Physics of Fluids

      Volume: 34 Issue: 4 Pages: 046105-046105

    • DOI

      10.1063/5.0083596

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] SLAU2-HLLD numerical flux with wiggle-sensor for stable low mach Magnetohydrodynamics simulations2021

    • Author(s)
      Mamashita Tomohiro、Kitamura Keiichi、Minoshima Takashi
    • Journal Title

      Computers & Fluids

      Volume: 231 Pages: 105165-105165

    • DOI

      10.1016/j.compfluid.2021.105165

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three-Dimensional Hypersonic Aeroheating Computations Associated with Cross-Flow Jet Interactions2020

    • Author(s)
      KITAMURA Keiichi、HASE Naoya、TAGUCHI Masato、MORI Koichi
    • Journal Title

      AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

      Volume: 19 Issue: 0 Pages: 141-150

    • DOI

      10.2322/astj.JSASS-D-20-00015

    • NAID

      130007931612

    • ISSN
      1884-0477
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations2020

    • Author(s)
      Kitamura Keiichi、Mamashita Tomohiro、Ryu Dongsu
    • Journal Title

      Computers & Fluids

      Volume: 209 Pages: 104635-104635

    • DOI

      10.1016/j.compfluid.2020.104635

    • NAID

      120006885192

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Multistate Low-dissipation Advection Upstream Splitting Method for Ideal Magnetohydrodynamics2020

    • Author(s)
      Minoshima Takashi、Kitamura Keiichi、Miyoshi Takahiro
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 248 Issue: 1 Pages: 12-12

    • DOI

      10.3847/1538-4365/ab8aee

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Numerical Experiments on Anomalies from Stationary, Slowly Moving, and Fast-Moving Shocks2019

    • Author(s)
      Keiichi Kitamura and Eiji Shima
    • Journal Title

      AIAA Journal

      Volume: 57 Issue: 4 Pages: 1763-1772

    • DOI

      10.2514/1.j057366

    • NAID

      120006646732

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 画像処理を応用した多次元衝撃波検知型 CFD 手法の検討(第2報:制限関数)2023

    • Author(s)
      北村圭一
    • Organizer
      (一社) 火薬学会 2023年度春季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 画像処理を応用した多次元衝撃波検知型 CFD 手法の検討2022

    • Author(s)
      北村圭一
    • Organizer
      2021年度衝撃波シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] SLAU2-MHD for Low Mach Magnetohydrodynamics (MHD) Simulations.2021

    • Author(s)
      Mamashita, T., Kitamura, K., and Minoshima, T..
    • Organizer
      AIAA AVIATION 2021 FORUM
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numerical Analysis on Aerodynamic Characteristics of Slender Body with Asymmetric Double Protuberance2021

    • Author(s)
      Tsutsui, F., Takagi, Y., Takimoto, H., Kitamura, K., and Nonaka, S.
    • Organizer
      AIAA SciTech Forum 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 衝撃波とバブルの干渉により生成された渦輪挙動の数値解析2021

    • Author(s)
      岳釗庚,藤本剛史,北村圭一,浅井宏樹,久保田祥矢,明官学,市原大輔,佐宗章弘
    • Organizer
      2020年度衝撃波シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Multiphase Viscous Flow Simulations using Two-Fluid Modeled SLAU22020

    • Author(s)
      Aono, J. and Kitamura, K.
    • Organizer
      WCCM-ECCOMAS 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numerical Survey on Shock Anomalies from Moving Shocks2019

    • Author(s)
      Kitamura, K., and Shima, E.
    • Organizer
      32nd International Symposium on Shock Waves
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] Advancement of Shock Capturing Computational Fluid Dynamics Methods2020

    • Author(s)
      Keiichi Kitamura
    • Total Pages
      136
    • Publisher
      Springer Singapore
    • ISBN
      9789811590108
    • Related Report
      2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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