17.10 Equipotential-Surface Electric-Field Source

17.10 Equipotential-Surface Electric-Field Source#

An equipotential-surface electric-field source used for static electric-field (STATIC(2) = 2) and steady-current-field (STATIC(2) = 3) analysis.

Input settings#

EPOTSUF(17.10) JSON key: equipotential-surface electric-field source object

SERIES_ID(17.10) Series ID

SURFACE_MAT_ID(17.10) Surface-element property ID

POT_OR_CHARGE(17.10) Specifies potential or charge

TIME_ID(17.10) Time-data ID

UNIT_TYPE(17.10) Specifies the input unit

Input format#

Text-format section
Type:

Fixed parameter set 1

Number of rows:

1

Number of parameters:

6

Text format#
* EPOTSUF * SERIES_NO * SURFACE_MAT_ID * POT_OR_CHARGE * TIME_ID * UNIT_TYPE *
EPOTSUF         I            I             I               I         I

JSON format#

JSON format from 2024.11#
"17_Field_Source" :
[
    {
        "EPOTSUF" :
        {
            "SERIES_ID" : I,
            "SMAT_ID" : I,
            "POT_OR_CHARGE" : I,
            "TIME_ID" : I,
            "UNIT_TYPE" : I
        }
    }
]

Detailed description#

An equipotential-surface electric-field source is defined as a surface element.

EPOTSUF#

EPOTSUF(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 1]
Type=S

Specifies the equipotential-surface electric-field source EPOTSUF.

SERIES_ID#

SERIES_ID(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 2]
Data type:

Integer (I)

Description:

Source-term identifier.

SURFACE_MAT_ID#

SURFACE_MAT_ID(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 3]
Type=I

Property ID of the surface elements forming the equipotential surface.

POT_OR_CHARGE#

POT_OR_CHARGE(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 4]
Type=I(0,1)

<When STATIC = 2>

  • = 0: Specifies the total surface charge (C) within the equipotential surface on a conductor surface. Potential is unknown. When total charge (C) is given to a dielectric surface, surface potential is unknown.

  • = 1: Specifies potential (V). Total charge is unknown.

<When STATIC = 3>

  • = 0: Specifies the total current (A) passing through the equipotential surface. Potential is unknown.

  • = 1: Specifies potential (V). Total current is unknown.

TIME_ID#

TIME_ID(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 5]
Type=I

Data ID specifying the time variation TIME_ID(18).

Specifies the time variation of charge (current) or potential according to POT_OR_CHARGE.

UNIT_TYPE#

UNIT_TYPE(17.10)#
Text-format section
Fixed parameter set 1#
[row, col] = [1, 6]
Type=I(0,1)

<When STATIC = 2>

Specifies the input unit for the total surface charge when POT_OR_CHARGE = 0

  • = 0: (C)

  • = 1: (C/m²)