期刊文献+

Modeling the Flow Regime Near the Source in Underwater Gas Releases 被引量:2

Modeling the Flow Regime Near the Source in Underwater Gas Releases
下载PDF
导出
摘要 Recent progress in calculating gas bubble sizes in a plume, based on phenomenological approaches using the release conditions is a significant improvement to make the gas plume models self-reliant. Such calculations require details of conditions Near the Source of Plume (NSP); (i.e. the plume/jet velocity and radius near the source), which inspired the present work. Determining NSP conditions for gas plumes are far more complex than that for oil plumes due to the substantial density difference between gas and water. To calculate NSP conditions, modeling the early stage of the plume is important. A novel method of modeling the early stage of an underwater gas release is presented here. Major impact of the present work is to define the correct NSP conditions for underwater gas releases, which is not possible with available methods as those techniques are not based on the physics of flow region near the source of the plume/jet. We introduce super Gaussian profiles to model the density and velocity variations of the early stages of plume, coupled with the laws of fluid mechanics to define profile parameters. This new approach, models the velocity profile variation from near uniform, across the section at the release point to Gaussian some distance away. The comparisons show that experimental data agrees well with the computations.
出处 《Journal of Marine Science and Application》 CSCD 2016年第4期433-441,共9页 船舶与海洋工程学报(英文版)
关键词 underwater gas releases bubble plumes near source conditions plumes/jets oil and gas spill models 在水下煤气的版本;水泡羽毛;近采购条件;羽毛 / 喷气;油和煤气的喷洒当模特儿;
  • 相关文献

同被引文献15

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部