沙地横向沙丘空气动力学：来自计算研究的三维相干流结构
Sand transverse dune aerodynamics: 3D Coherent Flow Structures from a computational study
摘要：
沙丘场的工程利益是由它们与干旱环境中的一些人类基础设施的相互作用决定的。沙丘动态取决于风及其引起沙侵蚀、搬运和沉积的能力。对沙丘空气动力学的深入了解有助于制定有效的战略，保护人类基础设施免受沙子的影响，即所谓的减沙。由于其简单的几何形状和它们经常出现在沙漠地区，横向沙丘通常被采用在文献中作为基准，通过计算或实验方法来研究沙丘空气动力学，通常在名义上的二维设置。本研究的目的是在评估三维流动功能在一个理想化的横向沙丘，如果有的话，在不同的名义上的二维设置条件下，通过计算模拟，并比较所获得的结果与文献中的实验测量。
英文摘要：
The engineering interest about dune fields is dictated by the their interaction with a number of human infrastructures in arid environments. Sand dunes dynamics is dictated by wind and its ability to induce sand erosion, transport and deposition. A deep understanding of dune aerodynamics serves then to ground effective strategies for the protection of human infrastructures from sand, the so-called sand mitigation. Because of their simple geometry and their frequent occurrence in desert area, transverse sand dunes are usually adopted in literature as a benchmark to investigate dune aerodynamics by means of both computational or experimental approaches, usually in nominally 2D setups. The present study aims at evaluating 3D flow features in the wake of a idealised transverse dune, if any, under different nominally 2D setup conditions by means of computational simulations and to compare the obtained results with experimental measurements available in literature.
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。
