3.6.3 Solar Load Model (Section 13.3.9)

• Under Solar Ray Tracing, step 2.(b)i. should be revised to the following:

    For an opaque wall, select opaque from the drop-down list for BC Type ( Figure 13.3.24). Then enable the Participates in Solar Ray Tracing option (this option is enabled for all boundary conditions by default) and enter constant values for Direct Visible and Direct IR absorptivity. Note that if you deactivate solar ray tracing by disabling the Participates in Solar Ray Tracing option, the surface will be ignored and the solar ray will pass through it with no interaction, regardless of the boundary condition type.

  In a similar manner, step 2.(b)ii. should be revised to the following:

    For a semi-transparent wall, select semi-transparent from the drop-down list for BC Type ( Figure 13.3.25). Then, enable the Participates in Solar Ray Tracing option (this option is enabled for all boundary conditions by default) and enter constant values for Direct Visible, Direct IR, and Diffuse Hemispherical absorptivity and transmissivity. Note that if you deactivate solar ray tracing by disabling the Participates in Solar Ray Tracing option, the surface will be ignored and the solar ray will pass through it with no interaction, regardless of the boundary condition type.

• Under Text Interface-Only Commands, the section on Automatically Reading Solar Data should be modified as follows:

  When you are executing a transient simulation in parallel ANSYS FLUENT and you want to take solar loading conditions into consideration, you can use the autoread-solar-data text command to automatically read the solar load data file you generated during a serial run into parallel ANSYS FLUENT. This is done by executing the text command autoread-solar-data from the text interface.

  define $\rightarrow$ models $\rightarrow$ radiation $\rightarrow$ solar-parameters $\rightarrow$ autoread-solar-data

  1.   Enter the Solar Data File Frequency (default= $0$).

  2.   Enter the filename, in quotations.

  The text interface command for autoread-solar-data for a file named solar and a frequency of $1$ is shown below:

  /define/models/radiation/solar-parameters> autoread-solar-data 
  Autoread Solar Data File Frequency [0] 1 
  Enter Filename [""] "solar" 
  Use Binary Format for Reading Data Files [yes]