Mike11 ---06---模拟泵抽水基本设置

发布于新浪博客，时间：2009-02-10 16:38:34 原文 (opens new window)

泵抽水模拟

可以是河网内部抽水或与外部存储器进行水量交换。内部抽水时指泵将其所在位置的上游最近h点抽到下游最近h点。而外部抽水时，泵设置在h点处。

Both pumps operating internally in the river system and pumps with external outlet are included in MIKE11.Pumps with internal outlet increases the local water level whereas pumps with external outlet removes water from the river system.

泵流量随设置的时间成线形变化。

Start-up Period: Period for changing pump discharge from zero to full. The pump discharge is changed linearly in time.

Close Down Period: Period for changing pump discharge from full to zero. The pump discharge is changed linearly in time.

Fixed Discharge这种模式只与设置的控制水位成线形变化，与前后h点水位没有关系。

Fixed Discharge: Pump rate independent of the local water head expect for the start/stop control.

Tabulated Characteristic这种模式是通过用户设定的Q-dH曲线及上下游水位差来控制的。这里dH为上下游水位差。

Tabulated Characteristic: Pump rate controlled by specified characteristic (Q-dH-curve) and the water level difference between upstream water level and outlet level/downstream water level.

dH, difference between up- and down- stream water level in case of submerged outlet and as the difference between upstream level and outlet level in case of free outlet.

因Mike11不支持对Q-dH表的外推，所以必须设置包含最大范围的dh

MIKE11 does not allow extrapolation. It is therefore recommended to add limit points to the Q-dH -curve.

这里设置的泵流量正负值代表了流向，沿里程方向为正，反之为负。

The applied Q sign in the "Discharge"- or "Q-dH-curve"- fields controls the pump direction (with or against chainage).

设置了泵以后，当泵执行操作时，从此位置总共流向下游的总的流量也即泵的出流量。