functionwindPressureProfile
Function for the cubic spline interpolation of a wind pressure profile with given support points and spline derivatives at these support points
Extends from Modelica.Icons.Function (Icon for functions).
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 Buildings.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.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Angle | alpha | Wind incidence angle | |
| Real[:] | incAngTab | Tabulated points for angle | |
| Real[size(incAngTab, 1)] | CpTab | Tabulated points for Cp | |
| Real | d | Derivative values at tabulated points |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | CpAct | Actual Cp value for given incidence angle alpha |
Revisions
-
February 16, 2022, by Michael Wetter:
Changed argment name toalphafor consistency with figure in Buildings.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