BuildingSystems.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.multipoleFmk

# .BuildingSystems.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.Functions.multipoleFmk

Complex matrix F_mk from Claesson and Hellstrom (2011)

## Information

This model evaluates the complex coefficient matrix F_mk from Claesson and Hellstrom (2011).

#### References

J. Claesson and G. Hellstrom. Multipole method to calculate borehole thermal resistances in a borehole heat exchanger. HVAC&R Research, 17(6): 895-911, 2011.

#### Interface

>     function multipoleFmk
>       extends Modelica.Icons.Function;
>       input Integer nPip "Number of pipes";
>       input Integer J "Number of multipoles";
>       input Real QPip_flow[nPip](each unit = "W/m") "Heat flow in pipes";
>       input Real PRea[nPip, J] "Multipoles (Real part)";
>       input Real PIma[nPip, J] "Multipoles (Imaginary part)";
>       input Modelica.Units.SI.Radius rBor "Borehole radius";
>       input Modelica.Units.SI.Radius rPip[nPip] "Outter radius of pipes";
>       input Modelica.Units.SI.Position xPip[nPip] "x-Coordinates of pipes";
>       input Modelica.Units.SI.Position yPip[nPip] "y-Coordinates of pipes";
>       input Modelica.Units.SI.ThermalConductivity kFil "Thermal conductivity of grouting material";
>       input Modelica.Units.SI.ThermalConductivity kSoi "Thermal conductivity of soil material";
>       output Real FRea[nPip, J] "Multipole coefficients";
>       output Real FIma[nPip, J] "Multipole coefficients";
>     end multipoleFmk;

## Revisions

- February 12, 2018, by Massimo Cimmino:
  First implementation.

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