.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.ThermalResponseFactors.timeGeometric

Information

This function attemps to build a vector of length nTim with a geometric expansion of the time variable between dt and t_max.

If t_max > nTim*dt, then a geometrically expanding vector is built as

t = [dt, dt*(1-r²)/(1-r), ... , dt*(1-rⁿ)/(1-r), ... , t_max],

where r is the geometric expansion factor.

If t_max < nTim*dt, then a linearly expanding vector is built as

t = [dt, 2*dt, ... , n*dt, ... , nTim*dt]

Interface

function timeGeometric
  extends Modelica.Icons.Function;
  input Modelica.SIunits.Duration dt "Minimum time step";
  input Modelica.SIunits.Time t_max "Maximum value of time";
  input Integer nTim "Number of time values";
  output Real t[nTim] "Time vector";
end timeGeometric;

Revisions

• June 28, 2018 by Massimo Cimmino:
  First implementation.