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Which outlet BC is better for this pump?

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Old   March 1, 2005, 13:23
Default Which outlet BC is better for this pump?
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I'm trying to simulate the flow in a well and pump system as shown below




| surface | | |

| | | |

-----| | | | inlet | | | --> | | |

-----| | | |

| |_________| |

| |


The flow enters from the inlet to the well and exits from the outlet, where a pump is pumping the flow out. The well is exposed to the air. Now I kown the inlet velocity and the approximate surface elevation in the well, but I don't know the outlet pressure caused by the pump. So what kind of BC is better for the outlet? Simply outflow? or pressure outlet(but the pressure is not available)?
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Old   March 1, 2005, 13:29
Default Re: Which outlet BC is better for this pump?
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sorry, the figure doesn't work as I thought. Basically, the flow enters from the inlet at the left side to a container(well). A pump is pumping water out from the pipe at the right side. The pipe is connected to the well at the right-bottom corner. The well is open to the atmosphere.
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