Evaluation of Salt Particle Behavior Around Device of Dry Gauze Method by CFD

• Tsubokura Yuta

  Kyoto University

• Ishiwatari Junya

  Kyoto University

• Tokumasu Hidetoshi

  Kyoto University

• Shirato Hiromichi

  Kyoto University

• Noguchi Kyohei

  Kyoto University

• Yagi Tomomi

  Kyoto University

Bibliographic Information

Other Title

• CFDによるドライガーゼ法捕集装置近傍での塩分粒子の挙動評価

Abstract

Airborne salt is one of the key factors that promote the corrosion of steel bridges. Thus, before the construction of a new bridge, it is desirable to accurately evaluate the amount of airborne salt at the bridge site. The dry gauze method is most often used to measure the amount of airborne salt in Japan. However, the collection efficiency of the dry gauze method for salt particles has not been clarified sufficiently because of complicated airflows around the device. Therefore, to clarify the collection efficiency of the dry gauze method, the authors simulated flow fields around the device of the dry gauze method by CFD and the results were validated using the corresponding wind tunnel tests. Additionally, using flow fields simulated, particle tracking was carried out to evaluate the behavior of salt particles in the vicinity of the collection device. The results show that some of salt particles flow down around the device without adhering to the gauze because of the complicated flow field.

Journal

• PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING

  PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 25 (0), 157-162, 2018

  Japan Association for Wind Engineering

Keywords

• Dry Gauze Method
• CFD
• Salt Collection Efficiency
• Airborne Salt
• Corrosion

Details

• CRID: 1390564238103137536
• NII Article ID: 130007669501
• DOI: 10.14887/kazekosymp.25.0_157
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed