15. Automatic Block Mesh Generation#

This data is required when INPUT_MESH_FILE(10.1) = 0 and is used to automatically generate a mesh for a block. The block analysis region is assumed to contain a block-shaped conductor or magnetic material. Property IDs 1 and 2 are assigned to the conductor (magnetic-material) region and the surrounding air region, respectively.

This feature is mainly for developer debugging, so detailed explanations are omitted.

Input settings#

15_Block_Mesh_Generation JSON key: automatic block mesh generation object

Input format#

Text-format section

Text format#

* AUTOMATIC MESH GENERATOR *
* ELEMENT_TYPE *
    0
* X_AIR_LOWER * X_MAT_LOWER * X_MAT_UPPER * X_AIR_UPPER *
        0              0           0.05           0.25
* Y_AIR_LOWER * Y_MAT_LOWER * Y_MAT_UPPER * Y_AIR_UPPER *
        0              0           0.05           0.25
* Z_AIR_LOWER * Z_MAT_LOWER * Z_MAT_UPPER * Z_AIR_UPPER *
        0              0            0.1           0.25
* XDIV_AIR_LOWER * XDIV_MAT * XDIV_AIR_UPPER *
    0     5   -10
* YDIV_AIR_LOWER * YDIV_MAT * YDIV_AIR_UPPER *
    0     5   -10
* ZDIV_AIR_LOWER * ZDIV_MAT * ZDIV_AIR_UPPER *
    0    10    -5
* DIVISION RATIO *
    0.01           0.01           0.01           0.01           0.01           0.01           0.02           0.03           0.04           0.05
* DIVISION RATIO *
    0.01           0.01           0.01           0.01           0.01           0.01           0.02           0.03           0.04           0.05
* DIVISION RATIO *
    0.01           0.02           0.03           0.04           0.05

JSON format#

JSON format from 2024.11#

"15_Block_Mesh_Generation" :
{
    "ELEMENT_TYPE" : 0,
    "DIVISION_TYPE" : 0,
    "RATIO_TYPE" : 0,
    "HYBRID" : 0,
    "X_AIR_LOWER" : 0.0,
    "X_MAT_LOWER" : 0.0,
    "X_MAT_UPPER" : 0.05,
    "X_AIR_UPPER" : 0.25,
    "Y_AIR_LOWER" : 0.0,
    "Y_MAT_LOWER" : 0.0,
    "Y_MAT_UPPER" : 0.05,
    "Y_AIR_UPPER" : 0.25,
    "Z_AIR_LOWER" : 0.0,
    "Z_MAT_LOWER" : 0.0,
    "Z_MAT_UPPER" : 0.1,
    "Z_AIR_UPPER" : 0.25,
    "XDIV_AIR_LOWER" : 0,
    "XDIV_MAT" : 5,
    "XDIV_AIR_UPPER" : -10,
    "YDIV_AIR_LOWER" : 0,
    "YDIV_MAT" : 5,
    "YDIV_AIR_UPPER" : -10,
    "ZDIV_AIR_LOWER" : 0,
    "ZDIV_MAT" : 10,
    "ZDIV_AIR_UPPER" : -5,
    "XDIV_AIR_UPPER_DIVISION" : [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.02, 0.03, 0.04, 0.05 ],
    "YDIV_AIR_UPPER_DIVISION" : [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.02, 0.03, 0.04, 0.05 ],
    "ZDIV_AIR_UPPER_DIVISION" : [ 0.01, 0.02, 0.03, 0.04, 0.05 ]
},

Brief description#

15_Block_Mesh_Generation#

15_Block_Mesh_Generation#

JSON key:: Automatic block mesh generation object

ELEMENT_TYPE: element type

Element type: = 0: hexahedral element; = 1: triangular-prism element; = 2: tetrahedral element. Element order is determined by NODE_ORDER(4) and EDGE_ORDER(4).

When ELEMENT_TYPE = 2, set NODE_ORDER(4) = 1 and EDGE_ORDER(4) = 1.

DIVISION_TYPE: division type

Effective when ELEMENT_TYPE = 2 (tetrahedral elements). = 0: division A; = 1: division B. Several methods exist for dividing a hexahedron into tetrahedra.

Coordinate settings: the same applies to the Y and Z directions

X_AIR_LOWER: lower coordinate of the air region in the X direction
X_MAT_LOWER: lower coordinate of the conductor (magnetic-material) region in the X direction
X_MAT_UPPER: upper coordinate of the conductor (magnetic-material) region in the X direction
X_AIR_UPPER: upper coordinate of the air region in the X direction

Division-count settings: the same applies to the Y and Z directions

XDIV_AIR_LOWER: number of divisions at the lower side of the air region in the X direction
XDIV_MAT: number of divisions in the conductor (magnetic-material) region in the X direction
XDIV_AIR_UPPER: number of divisions at the upper side of the air region in the X direction

When values such as XDIV_AIR_LOWER are set to negative values, enter nonuniform divisions (RATIO in text format).

XDIV_AIR_UPPER_DIVISION: enter coordinate values for the number of divisions. The first value must equal X_MAT_UPPER and the last must equal X_AIR_UPPER.

15. Automatic Block Mesh Generation

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