133 ビデオ画像による濃度変動量の測定方法に関する研究

• 大場 正昭

  東京工芸大学

書誌事項

タイトル別名

• Study on Measurement Techniques of Concentration Fluctuations Using Video Images

抄録

Video imaging techniques were used to measure concentration fluctuations including concentration spectra in the wake of a stack model and a rectangular building model using a high-speed video camera. From the experiments the following results were obtained. The image signals had linear relationships with gas concentrations for mean values. The distance extinction of laser light due to light scattering had negligible effects on the linearity under the experimental conditions. The video image spectra were also found to coincide well with those measured by a high-response hydrocarbon analyzer. The peak frequency in the wake existed in the range from several Hz to 20 Hz for the reference velocity of 1 m/s. For the standard deviation of image signals the linearities showed to decrease in comparison with those for mean values. A free stagnation point existed at the point of X/H=0.1 and Z/H=0.7 in the wake of the rectangular building model.

収録刊行物

• 可視化情報学会誌

  可視化情報学会誌 15 (Supplement1), 257-260, 1995

  社団法人 可視化情報学会

詳細情報

• CRID: 1390001204618625920
• NII論文ID: 10002673500
• NII論文ID: 130003443076
• NII書誌ID: AN10374478
• DOI: 10.3154/jvs.15.supplement1_257
• ISSN: 1884037X
• ISSN: 09164731
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可