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Glossary · General resistances
Kv Node
General resistance node used to simulate pressure drop variability with flow for fittings, manual valves, piping equipment, or combinations thereof through the following relationship:
\Delta P = (\rho_{Ref}/\rho)^{n-1}(m/m_{Ref})^n\Delta P_{Ref}Where:
\Delta P | Calculated pressure drop |
$\rho_{Ref}$ | Reference fluid density for the corresponding reference pressure loss $(\delta P_{Ref})$ |
$\rho$ | Fluid Density |
| m | Fluid mass flow rate passing through the Kv node |
$m_{Ref}$ | Reference fluid mass flow for the corresponding reference pressure loss $(\delta P_{Ref})$ |
$\Delta P_{Ref}$ | Reference pressure loss |
| n | Relationship exponent, typically applies a value of 2.0 |
Kv data can be stored in the database for future application.
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