Infinite Flow Resistance (IL)
R2026bIsothermal liquid element for setting initial pressure difference between two nodes
Infinite Flow Resistance (IL) block
To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.
Libraries:
Simscape /
Foundation Library /
Isothermal Liquid /
Elements
Description
The Infinite Flow Resistance (IL) block represents a break in an isothermal liquid network. There is no liquid flow through the break. However, the liquid properties, specified by the Isothermal Liquid Properties (IL) block connected to the circuit, are the same on both sides of the break. Use this block to set the priority and initial target value to the difference in pressure between port A and port B.
Variables
To set the priority and initial target values for the block variables prior to simulation, use the Initial Targets section in the block dialog box or Property Inspector. For more information, see Set Priority and Initial Target for Block Variables.
Nominal values provide a way to specify the expected magnitude of a variable in a model. Using system scaling based on nominal values increases the simulation robustness. Nominal values can come from different sources, one of which is the Nominal Values section in the block dialog box or Property Inspector. For more information, see Modify Nominal Values for a Block Variable.
Ports
Conserving
Programmatic Use: Add Block
To add the block programmatically, use the add_block function with one of these library block paths as the source.
"fl_lib/Isothermal Liquid/Elements/Infinite Flow Resistance (IL)"
Example: add_block("fl_lib/Isothermal Liquid/Elements/Infinite Flow Resistance (IL)","myModel/myBlock",MakeNameUnique="on")
For information about programmatic access to individual block parameters, see the Programmatic Use section of parameter descriptions on this page.
Extended Capabilities
Version History
Introduced in R2020a
