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关 键 词:flo-2d功能
行 业:IT 软件 安防及入侵检测
发布时间:2021-11-26
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创建网格系统
FLO-2D需要两组数据:地形和水文数据。地形可以用数字地形模型(DTM)点、等高线图或测量数据来表示。网格元素的标高是从DTM点的插值中分配的。一个称为网格开发系统(GDS)的预处理器程序生成网格系统并分配高程。典型的网格元素大小范围从10英尺(3米)到500英尺(150米),正方形网格元素的数量没有限制。
背景图片
航拍图像可以导入GDS作为背景,以图形编辑。GDS需要一个世界文件来读取图像。
体积守恒,路径算法的稳定性和时间
准确的洪水演算的关键是体积守恒。FLO-2D可以跟踪和报告体积守恒。数值稳定性与体积守恒有关,当模型保持体积时,模型运行得更快。根据滩地、河道和街道流的数值稳定性条件
来确定是递增还是递减计算时间步数。
流过程线或降雨
流过程线可以分配给信道或洪泛区节点。流入节点的数量没有限制。任何ASCII数据格式过程线都可以用作输入。FLO-2D也可以作为降雨径流模型,降雨可以发生在被洪水淹没的水面上。
he FLO-2D model was conceptualized in 1986 to predict mudflow hydraulics. The US Federal Emergency Management Agency (FEMA) supported the initial model development and first application to Telluride, Colorado in 1988. Over the past 30 years, FLO-2D has become the most widely used commercially available flood model. What sets FLO-2D apart from other hydrologic and hydraulic models is its capability to simulate urban flooding in high resolution and unlimited detail including the storm drain system. Using elements as small as 10 ft (3 m), FLO-2D is a superior model in terms of volume conservation, speed, numerical stability and detail. FLO-2D is simple to setup and even simpler to edit (no mesh regeneration). You don’t have to search for the price…there is only one: A $995/year service agreement for unlimited elements and unlimited computer stations per site.
A subscription to FLO-2D includes:
Technical Support
Free Training Webinars
Model Updates
Discount Short Courses
Newsletter
Training Certificates
选项0,1,2,3或4输出时间步长TIMTEP必须。TIMDEP文件打印输出变量的数量也会扩大。
FLO-2D is a combined hydrologic and hydraulic model so there is no need to separate rainfall/runoff and flood routing. It is on the list of Corps approved models. For a brief overview of the model components For additional information download the Demo Model or Contact Us.
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