HELLO!
I WOULD LIKE TO KNOW HOW TO SIMULATE A SYSTEM AS SHOWN IN THE FIGURE (GRAVITY SUPPLY NETWORK)
IT WOULD BE AN UPSTREAM RESERVOIR SUPPLYING TWO OR MORE DOWNSTREAM RESERVOIRS WITH ATMISPHERIC PRESSURES.
GRAVITY SUPPLY NETWORK
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marcioagr
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GRAVITY SUPPLY NETWORK
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jovivier
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Re: GRAVITY SUPPLY NETWORK
(Translated from viewtopic.php?p=2345#p2345 - posted in Spanish)
I indicate the following procedures as a suggestion:-
1) Define the elevation of the project by importing the contour lines or elevation points of the terrain;
(alternatively, you could just put elevation points at the main nodes as indicated in your figure, however, it is more advisable to have a real ground profile as this would allow a more accurate calculation of the working pressures at the nodes and define classes pipes and/or pressure regulators)
2) Draw the Mainline pipes with the indicated diameters. If the pipeline is straight, you can place "Permanent" junctions at critical elevation changes.
3) To simulate the output at the reservoirs, for discharging to atmosphere, create nozzles for the specific pipe size(s) as outlined in the forum post viewtopic.php?p=2302#p2302. Note that if there is something on the end of the pipe, such as a float valve, you will need the performance information to enter into IRRICAD.
Place the new outlet / nozzle combination as Mainline|Outlets at the "Downstream Reservoirs".
4) In the feeding reservoir point insert the "WATER SOURCE" (W). Define a design pressure and maximum pressure of about 1 to 2 m.c.a. in order to take into account the height of the water level above the pipeline;
5) Define the management of the Mainline Outlets as Assign All Zones to One System Flow and check if all the points are connected with the Check Outlet Connections tool.
6) Run Zone Design|Analysis and Mainline Design|Detailed Analysis to simulate the hydraulic behavior of the network. The results can be evaluated in the Mainline Summary Report and Mainline Design Full reports.
I indicate the following procedures as a suggestion:-
1) Define the elevation of the project by importing the contour lines or elevation points of the terrain;
(alternatively, you could just put elevation points at the main nodes as indicated in your figure, however, it is more advisable to have a real ground profile as this would allow a more accurate calculation of the working pressures at the nodes and define classes pipes and/or pressure regulators)
2) Draw the Mainline pipes with the indicated diameters. If the pipeline is straight, you can place "Permanent" junctions at critical elevation changes.
3) To simulate the output at the reservoirs, for discharging to atmosphere, create nozzles for the specific pipe size(s) as outlined in the forum post viewtopic.php?p=2302#p2302. Note that if there is something on the end of the pipe, such as a float valve, you will need the performance information to enter into IRRICAD.
Place the new outlet / nozzle combination as Mainline|Outlets at the "Downstream Reservoirs".
4) In the feeding reservoir point insert the "WATER SOURCE" (W). Define a design pressure and maximum pressure of about 1 to 2 m.c.a. in order to take into account the height of the water level above the pipeline;
5) Define the management of the Mainline Outlets as Assign All Zones to One System Flow and check if all the points are connected with the Check Outlet Connections tool.
6) Run Zone Design|Analysis and Mainline Design|Detailed Analysis to simulate the hydraulic behavior of the network. The results can be evaluated in the Mainline Summary Report and Mainline Design Full reports.