Ref :- http://communities.bentley.com/products/hydraulics___hydrology/f/5925/t/62107
Hi Regarding Victor's question, Assume a pipeline with a TCV. Coefficient Type is 'Discharge Coefficient' (Cv). initial Cv= 0.25 Fully Open Cv: 0.5 Valve Type is Globe Pattern (Valve Settings) is Fixed. Question): Run the model. How Q and Relative Closure of the TCV are calculated? What is the role of Cv in calculation of Q and Relative Closure? I know how a TCV operates and how Headloss, Cv and relation between relative closure and opening area in various kinds of valves are considered. Then my question is about how of calculating Q and Relative Closure in TCV? I mean when the software knows Cv initially, Cv fully open,diameter, valve type and other hydraulic characteristics of the model, How does it do to calculate a) Flow and B) relative Closure and C) relation between relative Closure and Cv?
Answer): My interpret is, the software uses energy equations for each pipe (start and stop point of each pipe) to show what the amount of Q is. Relative Closure is equal to 1-[Cv (initial)/Cv (fully open)]. With this parameters (Q, V, D, Cv, Relative Closure) all equations can be solved. Is my interpret correct?
Mark
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.