CHARACTERISTICS OF WIND AND AEOLIAN SAND FLUX OVER A COASTAL DUNE

• UDO Keiko

  International Research Institute of Disaster Science

Bibliographic Information

Other Title

• 砂丘周辺の飛砂フラックスと風向風速特性との関係
• サキュウ シュウヘン ノ ヒサ フラックス ト フウコウ フウソク トクセイ ト ノ カンケイ

Abstract

 This study analyzed instantaneous wind velocities and angle and aeolian sand flux over a coastal dune in order to clarify characteristics of wind and sand flux over complex terrain of dunes where large turbulence is generated. The horizontal turbulence intensity calculated using mean and standard deviation of horizontal wind velocity was approximated by a power equation of the mean horizontal wind velocity for various wind conditions. Furthermore, the horizontal turbulence intensity showed a negative relationship with the aeolian sand flux for various wind conditions. This indicates that the sand transport rate could be formulated using the turbulence intensity.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71 (2), I_529-I_534, 2015

  Japan Society of Civil Engineers

Keywords

• instantaneous wind velocity
• sand transport rate
• turbulent intensity
• UD-401

Details

• CRID: 1390001205319744384
• NII Article ID: 130005109288
• DOI: 10.2208/kaigan.71.i_529
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 027080699
• Web Site: http://id.ndl.go.jp/bib/027080699
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027080699
• Web Site: https://www.jstage.jst.go.jp/article/kaigan/71/2/71_I_529/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed