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一、制作背景学生对风力搬运堆积形成的地貌,尤其是对新月形沙丘的形成难以理解。加之客观条件的限制,为了研究沙丘地貌的形成,笔者制作了“堆积地貌实验装置”。实验装置及原理分别如图1、图2所示。二、操作过程该装置是由透明的亚克力板为主要材料制作而成,结构为“回”字形(见图2中右图)。装置外层封闭,内层底部开槽,然后用吹风机从上向下吹风,气流到底层后,以水平气流的方式,即“风”的形式进入装置的核心区
First, the production background Students formed by the wind transport accumulation of landscape, especially for the formation of crescent-shaped sand dunes difficult to understand. Coupled with the objective conditions of the restrictions, in order to study the formation of dune landform, the author produced “accumulation of landform experimental device ”. Experimental equipment and principles are shown in Figure 1, Figure 2. Second, the operation process The device is made of transparent acrylic plate as the main material, the structure of “back ” glyph (see Figure 2 in the right). The outer layer of the device is closed, the bottom of the inner layer is grooved, and then a hair dryer is used to blow air from top to bottom. After the air stream reaches the bottom layer, it enters into the core area of the device in the form of horizontal airflow, ie “wind”