Journal
OCEAN ENGINEERING
Volume 166, Issue -, Pages 226-231Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2018.08.027
Keywords
Submarine debris flow; Impact; Reynolds criteria; Rheological model; Model design
Funding
- National Natural Science Foundation of China [51879036, 51579032]
- National Key Research and Development Program of China [2018YFC0309200, 2016YFE0200100]
Ask authors/readers for more resources
Recently, predicting accurately the impact of submarine debris flows on pipelines has attracted much attention in ocean engineering. To address this problem, a small-scale model test based on analysis of the Reynolds number is usually employed. However, in the design of the test model, researchers have seldom considered the applicability of the Reynolds number and the rheological model of the debris flow, which had led to the following problems: (1) a large difference in the Reynolds number occurs between the test model and the engineering prototype, and (2) the shear rate of the rheological model exceeds the applicable scope. Hence, a methodology to determine the model dimension to satisfy both the rheological model and Reynolds criterion is proposed, in which two formulations expressing the design size of the test model and the design impact velocity of debris flow are established, respectively. Further, the influence of the rheological model on the design test model of the interaction between submarine debris flows and pipelines is briefly discussed. Finally, the optimal design value of the model size and impact velocity of debris flow is achieved and recommended to the models in the laboratory test and the numerical computation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available