ResistorTableAx

Description

The component ResistorTableAx is a model of a flow resistance that behaves like an orifice.

Based on the parameter Flow coefficient alphaD and a look-up table for the Cross-sectional area as a function of the input signal, the flow rate is calculated according to the formula given below:

The relationship between input signal and Cross-sectional area of the resistor is described by a 1D look-up table. The look-up table is provided by importing a text file or can be given manually in the dialog. If the parameter Table is provided by file is set to false, the datapoints from Manually provided look-up table will be used. If it is set to true, the table from the text file will be utilized. The text file must follow a specific syntax such that it can be read by Modelica. An example for a properly formatted text file with input signal and output area is given in the figure below:

A table is declared by its datatype (e. g. double), followed by the table name (e. g. tab1) and its dimensions in brackets (e. g. (5,2)). Multiple tables can be defined in the same text file. The table declaration is followed by the actual data. The first column of the table represents the input of the 1D table, whereas the second column lists the corresponding output values. The input values of the table must be arranged in increasing order. The output of the table must be the cross-sectional area (in m²). The component interpolates linearly between the listed input values. More information regarding the format of tables can be found in the component CombiTable1Ds.