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展开全部计算公式1：1/4∏×管径的平方（毫米单位换算成米单位）×经济流速（DN300以下管选1.2m/s、DN300以上管选1.5m/s）求采纳为满意回答。已赞过已踩过你对这个回答的评价是？评论
收起流速 m/s 米每秒 流量 m^3/s 立方米每秒 实验测量流速比较简单 从水槽入水处放入轻质浮标 计时5秒 10秒 15秒 测量移动距离 除以时间就是流速 多次测量取平均值 这种方法比较简陋 与实际流速误差也大 有条件可直接购买测量流速的...
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展开全部单位时间流量＝截面积*水流速度*时间（如果水流速度不恒定，或者截面积不恒定，就需要对时间进行积分运算）这个疑问搜一搜蛮多答案的。如果不考虑时间，水流量=截面积*水流速度
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选择擅长的领域继续答题？
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展开全部流量单位：Nm3/h是标准立方米/小时，它是在温度在24度，压力为1MPa是的流量。单位流量，指单位时间内通过特定表面的流体（液体或气体）的量（体积或质量）。若以体积衡量流体的量，其流量称之为“体积流量”，这也是多数场合中，流量所指的涵义。在国际单位制（SI）中，体积流量的标准单位为立方米每秒（m^3/s）。若以质量衡量流体的量，其流量称之为“质量流量”。在国际单位制中，质量流量的标准单位为公斤每秒（kg/s）。流体的性质具有黏性的流体在发生变形时将产生阻力，而没有黏性的流体则不会有任何阻力，度量流体黏性的物理量称为流体的黏度。没有黏性的流体又称为超流体。而流体的流动形式也有区分。倘流速很慢，流体会分层流动，互不混合，此乃层流。倘流速增加，越来越快，流体开始出波动性摆动，此情况称之为流体处于过渡区。流型呈现层流或湍流，视情况而定。当流速继续增加，达到流线不能清楚分辨，会出现很多漩涡，这便是湍流，又称作乱流、扰流或紊流。已赞过已踩过你对这个回答的评价是？评论
收起1GB=1024MB 1MB=1024KB 1KB=1024 B(字节) 一个英文字所需要1B，而一个汉字需要2B，一张图片一般几KB。用手机上的网页一般来说是几十Kb/每页，也就是几万B。 手机流量是指手机上网产生的流量数据，用手机打开软...
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