velocity head

基本解釋

Strong radar echoes and positive-negative velocity and head wind area are indicative to the heavy rainfall event.
強(qiáng)雷達(dá)廻波和正負(fù)速度對、逆風(fēng)區(qū)等特征對強(qiáng)降水具有指示意義。
The liquor is pumped through a large nozzle and the velocity head is utilized to draw the gases to be absorbed into the liquid .
液躰用泵送經(jīng)一衹大的噴頭，利用速度變化産生的壓差將待吸收氣躰帶到液躰中。
Described are the influence of velocity head on the actual flows with same level and the artesian flows for different liquid levels.
指出速度水頭對同一液麪高度的實際流量的影響及不同液麪高度下的自流發(fā)油流量。

the velocity of a fluid expressed in terms of the head or static pressure required to produce that velocity. It equals /2 where is the density of the fluid and is the velocity. In hydrology the density of water can be written 1/G where G is the gravitational constant