Card 9 - OPTICAL Surface Optical Property Definition

KODE

KODE is the code OPTICAL (or 65)

N1

N1 is the ID of the optical surface property.

T1

T1 is the code of the property. T1 may be the code for any surface optical property (e.g. ABSORPTIVITY, E, etc.) described on the Card 9 - MAT Material Property Definition Card - Optional.

T2

T2 is the value of the property. If the property is table-dependent, T2 may take the form Tn, where n is the table number (e.g. T6 for table or array 6).

Code example

$ Card 5 element with front and reverse side optical properties specified
256 REVOPTPROP=11 M6 13 P6 11 12 13 14
|
$ Corresponding optical properties 11 and 13
OPTICAL 11 E .4
OPTICAL 11 ABSORPTIVITY .7
OPTICAL 13 E .7
OPTICAL 13 ABSORPTIVITY .5

Notes

The OPTICAL Card provides an alternate way of specifying front and reverse side optical surface properties for elements. To define the front side properties of an element, the OPTICAL Card must be referenced in the FRONTOPTPROP field of a Card 5a. To define the reverse side properties of an element, the OPTICAL Card must be referenced in the REVOPTPROP field of the Card 5a. For more information, see Card 5a - Element.

Properties such as TRANSMISSIVITY, IRTRANS, etc., which apply to both sides, are obtained from the OPTICAL Card that defines the front side properties and are ignored when defined on the reverse side on an element.