i have an execel program but i need some equation to calculate speed when i know reynolds and diameter but i dont know delta P for turbulent flow the spredsheet it,s like that:
Q diameter lenght reynolds lamda P1 P2 v(speed)
where i use reynolds=2230*(Q/diameter)
P1 =1,5 ata
P2...
i need some good equation for calculatind the speed and the pressure drop in a gas network
i have to made a network whit 60 nodes, about 2 km
start presure 1,5 ata Q=3500 Nmc/h and at the end point of the network presure 1,2 ata and Q at last user 300Nmc/h, i tried some software but whit...