Card 6u - DIURNAL5 Solar Heating Modeling Request
This optional card defines the calculation positions and local solar time for the diurnal solar heating modeling request.
| Parameter | Value | Description |
|---|---|---|
DIURNAL5 |
DIURNAL5 (or 65) | Mnemonic |
ID |
Integer | Request ID number |
NINT |
Integer | Number of calculation if CALCOPT = TIME. 1 for
CALCOPT = CTE |
CALCOPT |
CTE | The diurnal flux is calculated for a single position defined in
fields LOCTIME1-3 as the local solar time |
| TIME | Multiple calculation positions are required as defined with the DIURNAL6 cards are present | |
LOCTIME1 |
Integer | Hour of the local solar time position. Valid only if
CALCOPT=CTE and the planet is Earth |
| Real | Angle in degrees along a constant latitude plane, measured from local
midnight, in the direction of planet’s rotation. Valid only if
CALCOPT=CTE and the planet is not Earth |
|
LOCTIME2 |
Integer | Minutes of the local solar time position. Valid only if
CALCOPT=CTE and the planet is Earth |
LOCTIME3 |
Integer | Seconds of the local solar time position. Valid only if
CALCOPT=CTE and the planet is Earth |
NINT
NINT is the number of calculation intervals in the diurnal heating request for CALCOPT = TIME. If CALCOPT = CTE, then NINT should be 1.
CALCOPT
CALCOPT is the calculation option, either CTE (constant time) or TIME.
If CALCOPT = CTE, the LOCTIME1, LOCTIME2 and LOCTIME3 fields define the local solar time position. For this option, the DIURNAL6 Card is not needed.
If CALCOPT = TIME, a Card6 DIURNAL6 is necessary to define additional diurnal heating request parameters.
LOCTIME1
LOCTIME1 is the hours of local solar time if the planet is Earth. Used only for CALCOPT = CTE.
Local solar time is the time elapsed since local midnight.
If the planet is not Earth, LOCTIME1 is the angular position in degrees measured from local midnight in the direction of the planet's rotation at constant latitude. Used only for CALCOPT = CTE option.
LOCTIME2
LOCTIME2 is the minutes of the local solar time if the planet is Earth. Used only for CALCOPT = CTE.
LOCTIME3
LOCTIME3 is the seconds of the local solar time if the planet is Earth. Used only for CALCOPT = CTE.
Code example
DIURNAL5 3 1 CTE 11 23 45
DIURNAL5 3 12 TIME