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awakening_

铜虫 (初入文坛)

[求助] 求教各位大神一个英文题目

In an ideal settling tank, a particle is completely removed if its terminal settling velocity is greater or equal to the depth/detention time ratio.
        a.        Calculate the diameter of the smallest particle with a specific gravity 1.6 that would be removed in a rectangulat basin that is 45m long, 6m wide, and 2m deep with a retention time of 30 min.
        b.        To improve removal efficiency, a consultant has proposed to install plates 6m wide and 2m high inclined at 60o to the horizontal and placed 10 cm apart (perpendicular distance between the plates) along the whole length of the tank.  Find the new area available for settling and hence, compute the diameter of the smallest particle that will be removed.  Comment on the results.

specific gravity是一个什么概念?算沉降速度时不需要水的密度吗?  大概得解题思路是什么?十分感谢!!
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fengyang0830

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【答案】应助回帖

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感谢参与,应助指数 +1
xuweimbf: 金币+1, 积极应助。 2013-09-06 11:44:46
比重。
重力沉淀池和斜板沉淀池,翻教材或手册很容易做的,自己先试试?

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2楼2013-09-06 08:37:08
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awakening_

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引用回帖:
2楼: Originally posted by fengyang0830 at 2013-09-06 08:37:08
比重。
重力沉淀池和斜板沉淀池,翻教材或手册很容易做的,自己先试试?

应该看什么教材啊,我是第一次学整个东西。。     时间充裕的话麻烦能不能教我一下解题思路?
这个不是需要Stokes law吗?但是他没有给池子里的液体的密度,用水的?
3楼2013-09-06 10:02:31
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