Is there a way to capture the actual volumetric flow on a time step basis for Air Valves?
Ultimately, I would like to extract a table with all air valves and the volumetric flow per time step and total time.
Vmax is said to be calculated by equation:
https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/3400/modeling-reference---air-valves
To add to Sushma's reply - when entering a value in the Report Period property of an air valve and looking at the table of extended results at the bottom of the Transient Detailed Report, the information displayed there (air flow rate, air volume, pressure, etc) is all of the information that is currently available to report on for an air valve in HAMMER.
As seen in the Air Valve Modeling Reference article, the air flow rate reported by HAMMER in the text reports is the flow rate at pipeline pressure (just on the inside of the pipe), which will be different than the "free air" flow rate, due to differences in air density. If you are interested in the flow rate or air at the opening to the atmosphere, you may be able to determine that by also looking at the air mass result that is available in the transient analysis detailed report. You could potentially import that table into Excel for further data manipulation/calculations if needed.
Regards,
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Thank you. The Report seems to give me exactly what I need.
How do output more than one row in the report?
I tried time and time steps and they both see to produce one step.
Please see below for examples of my inputs and the report outputs.
Much appreciated,
Jesse Ellis
Hi Jesse, in order to see more than the basic two rows in the output report, enter a number in the "Report Period" field in the properties of the air valve in question (see note in related article). Then, re-compute the transient simulation and re-open the text report.