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THE EFFECTS OF SOME TERRAIN ON WIND CHARACTERISTICS IN STRONG WINDS

Research Project

Project/Area Number 09450211
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

MAEDA Junji  DRADUATE SCHOOL OF HUMAN-ENVIRONMENT, DPET. OF URBAN DESIGN, PLANNING AND DISASTER MANAGEMENT, KYUSHU UNIVERSITY, ASSOCIATE PROFESSOR, 大学院・人間環境学研究科, 教授 (40128088)

Co-Investigator(Kenkyū-buntansha) 三宅 秋春  有明工業高等専門学校, 建築科, 教授 (40038104)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1997: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywordswind measurement / wind distribution / wind area measurement / local wind / wind tunnel test / effects of terrain / LSD method / 局所風
Research Abstract

By some wind distribution analyses using a network system of wind measurement in Kyushu, which we call NeWMeK, the following results are obtained about the effects of topography.
1. The system, which can show the characteristics of the strong wind distribution in the sight, was developed utilizing the counter map of wind distribution using the observation data of 121 sites of NeWMeK. As an example of a local area where peculiar strong wind characteristics is shown, it was verified that the west district of Fukuoka City showed a strong gust factor only for the south wind direction.
2. Considering the wind direction the 121 observation sites of NeWMeK are roughly classified into the following divisions according to the terrain using the digital map information data (50m mesh) : (1) flat, (2) foothill (downward), (3) foothill (upward), (4) inclined plane (downward), (5) inclined plane (upward), (6) summit of a mountain (parallel), (7) summit of a mountain (cross), (8) valley (parallel), and … More (9) valley (cross.)
3. The installation altitudes of the anemometers of NeWMeK sites vary within the range of 30-190m high. To arrange the height to 30m, the correction to the wind speeds was estimated considering the terrain and the wind directions. However a big change was not seen in whole wind distribution before and after arranging the height.
4. In the case that the virtual constant wind blows to the whole of Kyushu, the rate of increase of local wind were estimated by the LSD method and the map of the virtual wind distribution were visualized. It is found that the map was almost corresponding to the situations of the wind distributions at non-typhoon. However it was confirmed that this method couldn't apply to some sites.
5. The aerodynamic properties of a pulse type windmill anemometer in pulsation flows using a wind tunnel is discussed. It is found that the pulsation period and the attack angles of wind influence strongly on the measured wind speeds by the pulse type windmill anemometer. It is certificated that the responsibility of the anemometer is insufficient over ten degrees of the attack angle of wind. Less

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 石田伸幸: "NeWMeKデータに基づくマクロ地形別風況特性"日本風工学会誌. 71. 29-30 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 石田伸幸: "丘陵地形に着目した九州地区内の強風時における増速域の特定に関する研究"第15回風工学シンポジウム論文集. 15. 49-54 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 前田潤滋: "直接変位計測により超高鉄塔の強風時応答特定の検証"第15回風工学シンポジウム論文集. 15. 251-256 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 石田伸幸: "福岡市西部域の強風増速特性に関する考察(その1)"日本風工学会誌. 79. 17-18 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 海老原修二: "光パルス式風車型風向風速計出力に及ぼす傾斜角の影響について"日本風工学会誌. 79. 95-96 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Junji MAEDA: "Wind Response behavior of a power transmission tower using new displacement measurement"Proceesings of the tenth international conference on wind engineering. 1. 481-486 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Ishida, J. Maeda, et al.: "Some wind characteristics of topography using NewMek data"Journal of Wind Engineering. No. 71. 29-30 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Ishida, J. Maeda, et al.: "Estimates of Wind Speed-up Over Hill Terrain in Kyushu"Proceedings of 15th National Symposium on Wind Engineering. Vol. 15. 49-54 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] J. Maeda, N, Morimoto, et al.: "Response Behaviors of an Ultra-High Voltage Transmission Tower in Strong Winds Using a New Measurement Technique of Displacement"Proceedings of 15th National Symposium on Wind Engineering. Vol. 15. 251-256 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Ishida, M. Honda, J. Maeda: "The Influences of the Topography at West Area in Fukuoka City on the Strong Wind Distributions (Part 1 & 2)"Journal of Wind Engineering. No. 79. 17-20 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Ebihara, M. Matsunaga, et al.: "The Effect of Attack Angles to a Pulse Type Windmill Anemometer in Pulsation Flows"Journal of Wind Engineering. No. 79. 95-96 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] J. Maeda, et al.: "Wind Response behavior of a power transmission tower using new displacement measurement"Proceedings of the tenth international conference on wind engineering. Vol. 1. 95-96 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 石田信幸: "福岡市西部域の強風増速特性に関する考察(その1)"日本風工学会誌. 79. 17-18 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 本田 誠: "福岡市西部域の強風増速特性に関する考察(その2)"日本風工学会誌. 79. 19-20 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 前田潤滋: "Wind Response behavior of a power transmission tower using new displacement measurement"Proceedings of the international conference on wind engineering. 1. 481-486 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 海老原修二: "光パルス式風車型風向風速計出力に及ぼす傾斜角の影響について"日本風工学会誌. 79. 95-96 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 友清衣利子: "風倒木に見る台風9918号の強風特性について-NeWMeKによる強風分布情報と風倒木状況-"日本建築学会九州支部報告. 39(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 楠木貴博: "福岡市西部地区の強風特性に関する実験的考察-今宿地区の風向特性-"日本建築学会九州支部報告. 39(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 前田潤磁: "直接変位計測による超高鉄塔に強風時対応特定の検証" 第15回風工学シンポジウム論文集. 15. 251-256 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 前田潤滋: "送電用山形鉄塔の耐力に及ぼす接合条件と風荷量配分の影響" 第15回風工学シンポジウム論文集. 15. 557-562 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 石田伸幸: "丘陵地形に着目した九州地区内の強風時における増速域の特定に関する研究" 第15回風工学シンポジウム論文集. 15. 49-54 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 前田潤滋: "住宅骨組用荷量に及ぼす屋根形状の影響に関する二,三の考察" 第15回風工学シンポジウム論文集. 15. 311-322 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 本田誠: "福岡市西部域の強風増即と区政に関する考察" 日本建築学会第38九州支部研究報告構造系. 38(印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 海老原修二: "光パルス式風車型風向風速計の脈動流中での基本特性に関する考察" 日本建築学会第38九州支部研究報告構造系. 38(印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 前田 潤滋: "大戸ノ瀬戸海峡横断鉄塔でのT9612号観測報告(その1)-観測鉄塔周辺の風況特性-" 日本風工学会. 71. 19-20 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前田 潤滋: "大戸ノ瀬戸海峡横断鉄塔でのT9612号観測報告(その2)-直接変位計測による鉄塔の強風時応答変位特性の考察-" 日本風工学会. 71. 21-22 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前田 潤滋: "大戸ノ瀬戸海峡横断鉄塔でのT9612号観測報告(その3)-直接計測変位による送電鉄塔用動的応答解析コードの検証-" 日本風工学会. 71. 23-24 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前田 潤滋: "NeWMeKデータに基づくマクロ地形別風況特性" 日本風工学会. 71. 29-30 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前田 潤滋: "強風時風況特性に及ぼすマクロ地形の影響に関する実測的検討" 日本建築学会学術講演梗概集(関東),B-1構造I. B-1構造I. 159-160 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前田 潤滋: "強風時風況特性に及ぼすマクロ地形の影響(その2)" 日本建築学会第37九州支部研究報告構造系. 37(印刷中). (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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