Verification of estimation accuracy of flow field in shallow water region based on Kalman filter finite element method (Influence of observation variables, number and posision of observation points for estimation accuracy)

• KURAHASHI Takahiko

  Deparment of Mechanical Engineering, Nagaoka University of Technology

• YOSHIARA Taichi

  Deparment of Mechanical Engineering, Nagaoka University of Technology

• KOBAYASHI Yasuhide

  Deparment of Mechanical Engineering, Nagaoka University of Technology

Bibliographic Information

Other Title

• カルマンフィルタ有限要素法による浅水域における流れ場の推定精度の検証（観測変数・観測点の数および位置が推定精度に与える影響）

Abstract

In this study, the estimation of the flow field in open channel is carried out based on the finite element method and the Kalman filter theory. As the governing equation, the shallow water equation is employed, and the finite element and the selective lumping methods are applied to discretize the governing equation in space and time, respectively. The estimation of the distribution of the velosity vector and the water elevation is carried out by using the equations obtained by the Kalman filter theory. In the numerical experiments, the open channel flow is treated, and some examinations are carried out by changing the observation variables, number and posision of observation points.

Journal

• Transactions of the JSME (in Japanese)

  Transactions of the JSME (in Japanese) 82 (835), 15-00605-15-00605, 2016

  The Japan Society of Mechanical Engineers

Keywords

• Finite element method
• Kalman filter theory
• Estimation of flow field
• Number of observation variables
• Number of observation points
• Position of observation points

Details

• CRID: 1390001205515919360
• NII Article ID: 130005140016
• DOI: 10.1299/transjsme.15-00605
• ISSN: 21879761
• Web Site: https://www.jstage.jst.go.jp/article/transjsme/82/835/82_15-00605/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed