土木在线论坛 \ 水利工程 \ 水文与水资源工程 \ 两个关于HEC-RAS的问题

两个关于HEC-RAS的问题

发布于:2006-03-05 19:43:05 来自:水利工程/水文与水资源工程 [复制转发]
第一个:
在HEC-RAS编辑横断数据中,菜单中有一个命令是"add a lid to XS",在使用说明中是这样解释的:
Add a Lid to XS. This option allows the user to add a lid (similar to a bridge
deck/roadway) to any cross section. This is commonly used when trying to
model a long tunnel. The ground geometry can be used to describe the
bottom half of the tunnel, while the lid can describe the top half. A lid can be
added to any number of cross sections in a row. The program treats cross
sections with lids just like any other cross section. The energy equation is
used to balance a water surface, with the assumption of open channel flow.
The only difference is that the program will subtract out area and add wetted
perimeter when the water surface comes into contact with the lid.
可我还是没弄明白是啥意思,哪位能给我讲讲吗?
第二个:Sloping Bridge Abutments是啥意思?
这个家伙什么也没有留下。。。

水文与水资源工程

返回版块

4.6 万条内容 · 236 人订阅

猜你喜欢

阅读下一篇

上传《区域水资源原理与方法》一书

希望这本书对大家能有用

回帖成功

经验值 +10