GVSPM法を用いた鉛直管内自由落下粒子濃度分布のECT画像再構成(流体工学,流体機械)

• 武居, 昌宏

• 齊藤, 兆古

• 越智, 光昭

書誌事項

タイトル別名

• GVSPMホウ オ モチイタ エンチョク カンナイ ジユウ ラッカ リュウシ ノウド ブンプ ノ ECT ガゾウ サイコウセイ
• ECT Images Reconstruction of Freely Falling Particles Concentration Distribution in Vertical Pipe Using GVSPM

抄録

type:Article

A new reconstruction method called Generalized Vector Sampled Pattern Matching (GVSPM) was applied to the image reconstruction of an electrical capacitance computed tomography (ECT) in freely falling particles in a vertical pipe. This new method is able to achieve stable convergence without the use of an empirical value. Experiments were carried out using three particle types with various electric charges and four particle flow rates to measure the capacitance of a pipe cross section. The three particle types were polyethylene pellets (PP), silica sand (SS) and polyvinyl chloride (PVC). Four flow rate settings were used resulting in a volume flow rate ranging from 3.08×10^<-5> to 1.04×10^<-3> [m^3/s]. The GVSPM method is compared with conventional methods in terms of volume fraction, residual capacitance, and capacitance correlation. Overall, the GVSPM method proved superior to conventional methods in the case of polyethylene pellets with high electric charge. GVSPM achieves accurate reconstruction by using an objective function that is calculated as the inner product calculation between the experimental capacitance and the reconstructed image capacitance.

収録刊行物

• 日本機械学會論文集. B編

  日本機械学會論文集. B編 723 2652-2659, 2006-11-25

  社団法人日本機械学会

キーワード

• Multiphase Flow
• Electrical Computed Tomography
• Image Reconstruction
• Generalized Sampled Pattern Matching Method
• Ill Posed Inverse Problem

詳細情報

• CRID: 1050861869690423296
• NII論文ID: 110006148741
• NII書誌ID: AN00187441
• ISSN: 03875016
• NDL書誌ID: 8590227
• Web Site: http://hdl.handle.net/10114/4180
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8590227
• 本文言語コード: ja
• 資料種別: journal article
• データソース種別:
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN