ライブラリ登録: Guest
Multiphase Science and Technology

年間 4 号発行

ISSN 印刷: 0276-1459

ISSN オンライン: 1943-6181

SJR: 0.144 SNIP: 0.256 CiteScore™:: 1.1 H-Index: 24

Indexed in

BUBBLE TRACKING IN BUBBLY GAS-LIQUID TWO-PHASE FLOW IN POROUS STRUCTURES

巻 27, 発行 1, 2015, pp. 27-49
DOI: 10.1615/MultScienTechn.v27.i1.20
Get accessGet access

要約

Bubble motion in a gas-liquid co-current flow through a porous structure is investigated. Bubble residence time, influence of the structure on the bubble motion, and influence of the buoyancy force acting on the bubble are determined to obtain a better understanding of the existing fluid dynamics in the porous structure. A variety of liquid flow rates (Re = 114-285) and volumetric transport fractions (? = 2.4, 3.2, and 4.1%) are taken into account. Measurements inside and at the outlet of the structure are conducted and compared. The bubble motion is captured in a shadow imaging process, and overlapping bubble shadows are obtained. Therefore, a bubble-tracking algorithm is presented for the tracking of overlapping bubble shadows obtained by shadow imaging. The algorithm's matching criterion is based on similitude and proximity, and validated by running synthetic images. Errors are estimated for varying gas holdup (bubble density) and bubble displacement between consecutive images. The influence of the frame rate on the tracking capability (matching of bubbles in consecutive images) and the underestimation of the bubble track by low temporal resolution are investigated.

によって引用された
  1. Altheimer Marco, Becker Dustin, D'Aleo Francesco Paolo, Rudolf von Rohr Philipp, Flow regime and liquid–solid mass transfer investigation in a designed porous structure using electrochemical micro-probes, Chemical Engineering Science, 152, 2016. Crossref

Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集 価格及び購読のポリシー Begell House 連絡先 Language English 中文 Русский Português German French Spain