請問個位.....

請問一下,有誰知道 1 gallon per meter(GPM)等於多少的PSI??
謝謝

MY1

GPM应该是Gallon per minute，PSI是压力，两者没有直接关系。

skydog

Ft=mv, so if you know the mass of the liquid and velocity of the liquid then you can calculate the impulse and after that divided by the meter square and minute and you get the pressure.
but first of all, try to find out what is the SI unit of PSI in order to make sure the units are equal for both side.
Can try to calculate and think logically whether i am correct.

[ 本帖最后由 skydog 于 22-7-2005 08:22 AM 编辑 ]

＂請問一下,有誰知道 1 gallon per meter(GPM)等於多少的PSI??＂

没听过有gallon per meter。。。

广泛气压的单位：
BAR
mmH2O,inH20
mmHg,inHg,
kPa,Pa(Pascal)
ATM(atmospheric)

mc_tablo

只找到流体流量的“GPM(gallon per minute)”，
找不到 gallon per meter
而且 gallon per meter 也有点想不通。。。。
就好像 liter per meter，m^3 per meter 一样
所以应该是gallon per minute 才对嘛

[ 本帖最后由 mc_tablo 于 25-8-2005 03:12 PM 编辑 ]