STABILITY OF DISSOLUTION FLUTES UNDER TURBULENT FLOW
STABILITY OF DISSOLUTION FLUTES UNDER TURBULENT FLOW
复制标题
湍流下溶解槽的稳定性
DOI：
10.4311/2011jcks0200
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
B. Jamtveit
中科院分区：
文献类型：
--
作者：
Ø. Hammer;S. Lauritzen;B. Jamtveit
1摘要：固体表面在湍流流动下的溶解可导致形成周期性波纹状结构，其波长取决于流速。耦合流体力学与质量传输和溶解动力学的模型表明，这些结构的形状稳定性可以从基本原理解释。亚网格扩散边界层的影响必须包括在溶解模型中，以产生真实的结果。不仅包括平均流速的重要性，但也是湍流的组成部分，在溶解模型中强调。数值实验还比较了石膏和方解石的溶解剖面。
1 Abstract: Dissolution of a solid surface under turbulent fluid flow can lead to the formation of periodic ripple-like structures with a wavelength dependent upon flow velocity. A model coupling hydrodynamics with mass transport and dissolution kinetics shows that the shape stability of these structures can be explained from fundamental principles. The effects of a subgrid diffusion boundary layer must be included in the dissolution model to produce realistic results. The importance of including not only the mean flow velocity, but also the turbulent component of flow, in the dissolution model is emphasized. The numerical experiments also compare dissolution profiles for gypsum and calcite.