BuildingSystems.Airflow.Multizone.BaseClasses.windPressureProfile

# .BuildingSystems.Airflow.Multizone.BaseClasses.windPressureProfile

Function for the cubic spline interpolation of a wind pressure profile with given support points and spline derivatives at these support points

## Information

This function computes the wind pressure coefficients Cp from a user-defined table data. The same functionality is also implemented in CONTAM.

This function is used in BuildingSystems.Fluid.Sources.Outside_CpData.

#### References

- W. S. Dols and B. J. Polidoro,2015. CONTAM User Guide and Program Documentation Version 3.2, National Institute of Standards and Technology, NIST TN 1887, Sep. 2015. doi: 10.6028/NIST.TN.1887.
- Andrew K. Persily and Elizabeth M. Ivy. Input Data for Multizone Airflow and IAQ Analysis. NIST, NISTIR 6585. January, 2001. Gaithersburg, MD.
- M. W. Liddament, 1996, A guide to energy efficient ventilation. AIVC Annex V.

#### Interface

>     function windPressureProfile
>       extends Modelica.Icons.Function;
>       input Modelica.Units.SI.Angle alpha "Wind incidence angle";
>       input Real incAngTab[:] "Tabulated points for angle";
>       input Real CpTab[size(incAngTab, 1)] "Tabulated points for Cp";
>       input Real[size(incAngTab, 1)] d "Derivative values at tabulated points";
>       output Real CpAct "Actual Cp value for given incidence angle alpha";
>     end windPressureProfile;

## Revisions

- February 16, 2022, by Michael Wetter:
  Changed argment name to `alpha` for consistency with figure in BuildingSystems.Airflow.Multizone.BaseClasses.windPressureLowRise.
- February 2, 2022, by Michael Wetter:
  Revised implementation.
  This is for IBPSA, #1436.
- April 6, 2021, by Klaas De Jonge:
  First implementation

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