教師資料查詢 | 類別: 期刊論文 | 教師: 李政賢 CHENG-HSIEN LEE (瀏覽個人網頁)

標題:A three-phase flow simulation of local scour caused by a submerged wall jet with a water-air interface
學年105
學期2
出版(發表)日期2017/07/25
作品名稱A three-phase flow simulation of local scour caused by a submerged wall jet with a water-air interface
作品名稱(其他語言)
著者Cheng-Hsien Lee; Conghao Xu; Zhenhua Huang
單位
出版者
著錄名稱、卷期、頁數Advances in Water Resources
摘要Interactions between fluid and hydraulic structures and the resulting bed scouring are complex phenomena that involve three phases: water, air and sediment. This study presents a new rheology-based three-phase flow model that can (i) track the water-air interface in the presence of suspended sediment and (ii) predict the local scour caused by submerged wall jet. A modified volume-of-fluid (VOF) method was used to track the water-air interface, and a modified k-ϵ turbulence model was employed to capture important features of the turbulent flow, including turbulence modulation due to fluid-sediment interaction. The three-phase model was first used to study the sediment transport in open-channel flows in order to evaluate the performance of two models for particle response time, and then employed to simulate the scouring process downstream a submerged wall jet issued from a sluice gate. The simulated bed profiles showed good agreement with the measured. It was demonstrated that the three-phase model could capture important dynamic features such as sediment avalanche.
關鍵字Three-phase modeling;Volume of fluid;Sediment transport;Scour process;Sediment avalanche
語言英文
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式,電子版
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