seep 渗流分析的 步骤
[i]1Set the Working Area 确定工作范围sz^6v3U0Q"ol,uNThe working area is the size of the space available for defining the problem. The working area may be smaller, equal to or greater than the printer page. If the working area is larger than the printer page, the problem will be printed on multiple pages when it is displayed at 100% or greater. The working area should be set so that you can work at a convenient scale.[/i]
[i]2 Set the Scale 绘图比例&R Z @BkW:`
The geometry of the problem is defined in meters. [/i])s_ E e,F6M y
[i]3 Sketch the Problem
In developing a finite element mesh, it is convenient to first prepare a sketch of the problem dimensions. This sketch is a useful guide for drawing the finite element mesh and defining the boundary conditions.[/i]
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4 Specify the Analysis Type
This problem is a steady-state analysis.
To specify this information: Pc*xJ!swH
1. Choose Analysis Settings from the KeyIn menu and select the Type property sheet tab
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5 Define a Hydraulic Conductivity Function 渗透函数
The foundation material has a hydraulic conductivity equal to 1 x 10-5 m/sec, and it is independent of the pore-water pressure level. Since the hydraulic conductivity must be defined as a function, the constant hydraulic conductivity can be defined by a two-point horizontal function.
To define a conductivity function:
1. Choose Functions from the KeyIn menu. The Functions cascading menu will appear.
2. Choose Conductivity from the Functions cascading menu.
6 Define Material Properties 材料特性
For each material type, you must specify:.oqp)`xB
a material number unique to the material%PE n;}M:{o%C
a hydraulic conductivity function (kx)
a volumetric water content function, if the problem is a transient analysis Uk m p.J%Y+J(o
the ratio of the ky to kx hydraulic conductivitiesx \'P8bV^
the direction of the kx hydraulic conductivity
7 Generate Finite Elements （生成元素，画网格）
For this problem, it is adequate to use four-noded quadrilateral elements in the geometry. All elements have the properties of Material 1. Elements will be generated in three regions.
To generate finite elements in the first region of the problem:w P H-Ur1f
1. Choose Multiple Elements from the Draw menu. The cursor will change from an arrow to a cross-hair and the status bar will indicate that "Draw Multiple Elements" is the current mode.q~ UI x D!y
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8 Specify Node Boundary Conditions 边界条件
Boundary conditions may be specified as total head (H), total nodal flow or flux (Q), or flow per unit length along the side of an element (q).
9 Draw Flux Sections (检查有没有错误）
A flux section is desired for this problem to compute the total seepage flow through the foundation of the dam.Zm,V2q1a9NC M
10 Verify the Problem2V/j0y"D@(f
The problem definition should now be verified by SEEP/W to ensure that the data has been defined correctly. To solve the finite element equations, it is also important that the node numbers are sorted in a horizontal or vertical direction and that they form a complete sequence starting with Number 1. Keeping the node number difference in each element as low as possible helps to minimize the memory requirements of the SOLVE function. Although SEEP/W sorts the node and element numbers each time that multiple elements are generated, the mesh is not sorted when single elements are drawn using Draw Single Elements or when nodes and elements are added using the KeyIn Nodes and KeyIn Elements commands.
11 Solving the Problem
The second part of an analysis is to use the SEEP/W SOLVE function to compute the total hydraulic head at each node, the flow velocity within each element, and the total flux across specified sections. tr w-CB&]:z
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结果后处理：
12Draw Contours
To draw contours of the results:vZ"cLV}Zm3c {
* Select Contours from the Draw menu.:]-` s+J0O!@]1^ V+r
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*Draw the Velocity Vectors
To change the length at which the velocity vectors are displayed:
*Draw the Flux Value[/i] 楼主不会直接吧help直接贴上来了吧？
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