• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Investigations of high-speed avalanche dynamics and Hugoniot of ice by the high-speed impact experiments of snow

Research Project

Project/Area Number 05452368
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Natural disaster science
Research InstitutionHokkaido University

Principal Investigator

MAENO Norikazu  Hokkaido University, Institute of Low Temperature Science, Professor, 低温科学研究所, 教授 (50001657)

Co-Investigator(Kenkyū-buntansha) SUGIYAMA Hiroshi  Muroran Institute of Technology, Department of Mechanical Systems Engineering, P, 機械システム工学科, 教授 (70002938)
ARAKAWA Masahiko  Hokkaido University, Institute of Low Temperature Science, Instructor, 低温科学研究所, 助手 (10222738)
NISHIMURA Kouichi  Hokkaido University, Institute of Low Temperature Science, Instructor, 低温科学研究所, 助手 (10180639)
NARITA Hideki  Hokkaido University, Institute of Low Temperature Science, Lecturer, 低温科学研究所, 講師 (20001662)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 1994: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1993: ¥4,300,000 (Direct Cost: ¥4,300,000)
KeywordsAvalanche / Snow and Ice / High-speed Impact / Icy Planet / Hugoniot of Ice / 氷のユゴニオ
Research Abstract

High-speed impact experiments of snow and ice were conducted in a large cold room maintained at -18゚C.A light gas gun was used to impact an ice projectile (15 mm cylinder with a round cap of radius 8 mm) on snow and ice plates. The impact speed was varied between 50 and 600 m/s. Observations of crack growth in the ice target was possible by eliminating reflections from walls. The impact phenomena were photographed with an image-converter camera at 200,000 and 500,000 frames per second. The lighting system used was Schlieren and shadow photograpy.
From the photographic observations, the following results were obtained. In the impact experiment between an ice projectile and ice plate, cracks developed semicircularly, and the propagation velocity of craks amounted to roughly 3 km/s when the impact speed was 139 m/s. The propagation velocity varies between 2.1 and 4.0 km/s at the impact speed of 139-528 m/s.
In the high-speed impact experiments between an ice projectile and snow paltes (thickness of 3,5,10,20,30 mm and porosity of 15 and 30%), it was found that the free surface particle velocity decreased with distance and that of snow was larger than that of ice at the same impact velocity.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] Arakawa,M: "Direct observations of the crack propagation in the collisional disruptions of ice." Proc.26th ISAS Lunar and Planetary Symp.26. 137-140 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Higa,M.: "Impact experiments of ice spheres on an ice block:First report." Proc.26th ISAS Lunar and Planetary Symp.26. 141-144 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 杉山 弘: "微粒子-気体衝撃波管内におかれた楕円柱まわりの流れ" 衝撃波シンポジウム講演論文集. 137-139 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Higa,M.: "Measurements of particle velocities in the shock compressed snow plates." Proc.27th ISAS Lunar and Planetary Symp.27. 174-177 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 杉山 弘: "LDVによる超音波乱流混合層の測定" 日本機械学会論文集. 60. 2731-2736 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Sugiyama,H.: "High-speed gas-particle flows past circular and elliptic cylinders." SME-KSME Fluid Eng.Conf.397-401 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Arakawa, M.: "Direct observations of the crack propagation in the collisional disruptions of ice." Proc.26th ISAS Lunar and Planetary Symp.26. 137-140 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Higa, M.: "Impact experiments of ice spheres on an ice block : First report." Proc.26th ISAS Lunar and Planetary Symp.26. 141-144 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Sugiyama, H.: "Flow around the elliptic in a gas-particle shock tube." Proc.Shock Wave Symp.137-139 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Higa, M.: "Measurements of particle velocities in the shock compressed snow plates." Proc.27th ISAS Lunar and Planetary Symp.27. 174-177 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Sugiyama, H.: "LDV measurements of supersonic turbulent flows in a mixed layr." Proc.Japan Eng.Soc.60. 2731-2736 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Sugiyama, H.: "High-speed gas-particle flows past circular and elliptic cylinders." SME-KSME Fluid Eng.Conf.397-401 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Arakawa,M: "Direct observations of the crack propagation in the collisional disruptions of ice." Proc.26th ISAS Lunar and Planetary Symp.26. 137-140 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] Higa,M.: "Impact experiments of ice spheres on an ice block:First report." Proc.26th ISAS Lunar and Planetary Symp.26. 141-144 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 杉山 弘: "微粒子-気体衝撃波管内におかれた楕円柱まわりの流れ" 衝撃波シンポジウム講演論文集. 137-139 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Higa,M.: "Measurements of particle velocities in the shock compressed snow plates." Proc.27th ISAS Lunar and Planetary Symp.27. 174-177 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 杉山 弘: "LDVによる超音波乱流混合層の測定" 日本機械学会論文集. 60. 2731-2736 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Sugiyama,H: "High-speed gas-particle flows past circular and elliptic cylinders." SME-KSME Fluid Eng.Conf.397-401 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Arakawa,M: "Direct observations of the crack propagation in the collisional disruptions of ice" Proc.26th ISAS Lunar and Planetary Symp.26. 137-140 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Higa,M.: "Impact experiments of ice spheres on an ice block:First report" Proc.26th ISAS Lunar and Planetary Symp.26. 141-144 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 杉山 弘: "微粒子-気体衝撃波管内におかれた楕円柱まわりの流れ" 衝撃波シンポジウム講演論文集. 137-139 (1994)

    • Related Report
      1993 Annual Research Report

URL: 

Published: 1993-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi