INVESTIGATIONS ON THE DRAG FORCE IN SUBMERGED GRANULAR FLOWS

被引：0
|
作者：
Armanini, Aronne [1 ]
Nucci, Elena [1 ]
Larcher, Michele [1 ]
机构：
[1] Univ Trento, Dept Civil Environm & Mech Engn, Trento, Italy
来源：
PROCEEDINGS OF THE 36TH IAHR WORLD CONGRESS: DELTAS OF THE FUTURE AND WHAT HAPPENS UPSTREAM | 2015年
关键词：
submerged granular flows; drag force; voidage function;
D O I：
暂无
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
The rheology of submerged granular flows is described according to a heuristic model recently proposed by Armanini et al. (2014), which is a single parameter model, based on the fundamental evidence that the collisional and the frictional regimes coexist across the flow depth. The main novelty of the heuristic model is to provide an equation of state valid also for the frictional regime. Investigations on the role of the drag force in the balances of uniform submerged granular flows are presented. A new relation of the voidage function valid for all the values of concentration is derived.
引用
收藏
页码：1599 / 1604
页数：6
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