作为二维截面耦合动力系统的三维沙丘骨架模型
3D Dune Skeleton Model as a Coupled Dynamical System of 2D Cross-Sections
摘要：
为了从理论上分析横向沙丘和新月形沙丘的形状稳定性和迁移过程，提出了一个用二维截面耦合动力学描述的三维沙丘的\it骨架模型。首先，二维截面的三维沙丘平行于风向提取的三维沙丘的骨架的元素，因此，每个动态和它们之间的相互作用被认为是。该模型简单地描述了三维沙丘的基本动力学耦合常微分方程组的系统。使用该模型，我们研究的稳定性的形状的3D横向沙丘和他们的变形barchans取决于沙丘领域，砂流在平行和垂直于风向的可用砂量。
英文摘要：
To analyze theoretically the stability of the shape and the migration process of transverse dunes and barchans, we propose a {\it skeleton model} of 3D dunes described with coupled dynamics of 2D cross-sections. First, 2D cross-sections of a 3D dune parallel to the wind direction are extracted as elements of a skeleton of the 3D dune, hence, the dynamics of each and interaction between them is considered. This model simply describes the essential dynamics of 3D dunes as a system of coupled ordinary differential equations. Using the model we study the stability of the shape of 3D transversal dunes and their deformation to barchans depending on the amount of available sand in the dune field, sand flow in parallel and perpendicular to wind direction.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
