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Determining the occurrence time for max and min transient pressure at all nodes

I have carried out transient simulation for an irrigation network. Based on client requirement, I want the occurrence time of the maximum and minimum transient pressures at all junctions. How can we extract this information that at what instant/time we encounter the maximum transient pressure and the minimum transient pressure at every node/junction. Please help.

Parents
  • Hello Scott and Yashodhan,

    The transient analysis is done for pump shut down case and we have also provided surge protection devices to limit the transient pressures to the allowable pressures. However, the additional requirement to know the occurence time for the maximum and minimum pressures is being asked by the client for information purpose.

    In one of the previous commenced project, there were few issues observed at site during surge events and client was not very confident of the surge analysis and the protection devices we had proposed then. Therefore, client has asked us to provide the time of occurence for additional verification and further review at site. Hence, in view of the above, would request you to help us with a methodology to record the occurence time for maximum and minimum pressures at all junctions.

Reply
  • Hello Scott and Yashodhan,

    The transient analysis is done for pump shut down case and we have also provided surge protection devices to limit the transient pressures to the allowable pressures. However, the additional requirement to know the occurence time for the maximum and minimum pressures is being asked by the client for information purpose.

    In one of the previous commenced project, there were few issues observed at site during surge events and client was not very confident of the surge analysis and the protection devices we had proposed then. Therefore, client has asked us to provide the time of occurence for additional verification and further review at site. Hence, in view of the above, would request you to help us with a methodology to record the occurence time for maximum and minimum pressures at all junctions.

Children
  • Hello,

    The time of minimum or maximum pressure is not reported at this time. However, profile animations and time history graphs can document when these peaks can occur. You can include time history graphs in custom reports, which will make it relatively easy for the client to see when the peak would occur in graphical form. 

    Otherwise, you could pull that data from the time history graphs to be included in a document. If there are a lot of nodes, this may be cumbersome, however you could also just include key areas in the model.

    Regards,

    Scott Kampa

    Bentley Technical Support