Boundary-Layer Flow Over Complex Topography
Boundary-Layer Flow Over Complex Topography
复制标题
DOI：
10.1007/s10546-020-00564-3
复制
发表时间：
2020-10
影响因子：
4.3
通讯作者：
J. Finnigan;K. Ayotte;I. Harman;G. Katul;H. Oldroyd;E. Patton;D. Poggi;A. Ross;P. Taylor
中科院分区：
文献类型：
--
作者：
J. Finnigan;K. Ayotte;I. Harman;G. Katul;H. Oldroyd;E. Patton;D. Poggi;A. Ross;P. Taylor
我们回顾了复杂地形边界层流领域的发展，重点关注从 1970 年至今的时期。审查遵循两个平行的线索：丘陵对大气边界层中流动的影响以及由地表加热或冷却引起的山坡上重力驱动的流动。对于每条链，我们都会考虑分析理论的理解，然后再转向更现实的数值计算，最初使用湍流闭合模型，最近使用涡流解析方案。接下来，我们回顾了现场实验和物理模型，这些实验和物理模型有助于目前对这两个方面的理解。事后看来，我们可以将 1970 年至 2000 年期间的重大理论和模型进展与宣布这些进展的关键论文联系起来，但在过去的二十年里，我们把网撒得更广，以确保我们不会错过最终被视为至关重要的步骤。 2000-2020 年期间有两个重要的新主题受到关注。第一个是流过覆盖着高大植物树冠的山丘的水流。当水流接近中性时，以及当水流稳定分层时，冠层的存在都会以重要的方式改变水流，从而在两条主链之间形成联系。第二个是使用涡旋解析模型作为工具，将山丘流和重力驱动流结合在一起，对复杂地形气象进行统一描述。
We review developments in the field of boundary-layer flow over complex topography, focussing on the period from 1970 to the present day. The review follows two parallel strands: the impact of hills on flow in the atmospheric boundary layer and gravity-driven flows on hill slopes initiated by heating or cooling of the surface. For each strand we consider the understanding that has resulted from analytic theory before moving to more realistic numerical computation, initially using turbulence closure models and, more recently, eddy-resolving schemes. Next we review the field experiments and the physical models that have contributed to present understanding in both strands. For the period 1970–2000 with hindsight we can link major advances in theory and modelling to the key papers that announced them, but for the last two decades we have cast the net wider to ensure that we have not missed steps that eventually will be seen as critical. Two important new themes are given prominence in the 2000–2020 period. The first is flow over hills covered with tall plant canopies. The presence of a canopy changes the flow in important ways both when the flow is nearly neutral and also when it is stably stratified, forming a link between our two main strands. The second is the use of eddy-resolving models as vehicles to bring together hill flows and gravity-driven flows in a unified description of complex terrain meteorology.