/// <summary>
/// ヘルムホルツ方程式に対する有限要素マトリクス作成
/// </summary>
/// <param name="waveLength">波長</param>
/// <param name="toSorted">ソートされた節点インデックス（ 2D節点番号→ソート済みリストインデックスのマップ）</param>
/// <param name="element">有限要素</param>
/// <param name="Nodes">節点リスト</param>
/// <param name="Medias">媒質リスト</param>
/// <param name="ForceNodeNumberH">強制境界節点ハッシュ</param>
/// <param name="WGStructureDv">導波路構造区分</param>
/// <param name="WaveModeDv">計算する波のモード区分</param>
/// <param name="waveguideWidthForEPlane">導波路幅(E面解析用)</param>
/// <param name="mat">マージされる全体行列</param>
public static void AddElementMat(double waveLength,
Dictionary <int, int> toSorted,
FemElement element,
IList <FemNode> Nodes,
MediaInfo[] Medias,
Dictionary <int, bool> ForceNodeNumberH,
FemSolver.WGStructureDV WGStructureDv,
FemSolver.WaveModeDV WaveModeDv,
double waveguideWidthForEPlane,
ref MyComplexMatrix mat)
{
// 定数
const double pi = Constants.pi;
const double c0 = Constants.c0;
// 波数
double k0 = 2.0 * pi / waveLength;
// 角周波数
double omega = k0 * c0;
// 要素頂点数
const int vertexCnt = Constants.TriVertexCnt; //3;
// 要素内節点数
const int nno = Constants.TriNodeCnt_SecondOrder; //6; // 2次三角形要素
// 座標次元数
const int ndim = Constants.CoordDim2D; //2;
int[] nodeNumbers = element.NodeNumbers;
int[] no_c = new int[nno];
MediaInfo media = Medias[element.MediaIndex]; // ver1.1.0.0 媒質情報の取得
double[,] media_P = null;
double[,] media_Q = null;
// ヘルムホルツ方程式のパラメータP,Qを取得する
FemSolver.GetHelmholtzMediaPQ(
k0,
media,
WGStructureDv,
WaveModeDv,
waveguideWidthForEPlane,
out media_P,
out media_Q);
// 節点座標(IFの都合上配列の配列形式の2次元配列を作成)
double[][] pp = new double[nno][];
for (int ino = 0; ino < nno; ino++)
{
int nodeNumber = nodeNumbers[ino];
int nodeIndex = nodeNumber - 1;
FemNode node = Nodes[nodeIndex];
no_c[ino] = nodeNumber;
pp[ino] = new double[ndim];
for (int n = 0; n < ndim; n++)
{
pp[ino][n] = node.Coord[n];
}
}
// 面積を求める
double area = KerEMatTri.TriArea(pp[0], pp[1], pp[2]);
//System.Diagnostics.Debug.WriteLine("Elem No {0} area: {1}", element.No, area);
System.Diagnostics.Debug.Assert(area >= 0.0);
// 面積座標の微分を求める
// dldx[k, n] k面積座標Lkのn方向微分
double[,] dldx = null;
double[] const_term = null;
KerEMatTri.TriDlDx(out dldx, out const_term, pp[0], pp[1], pp[2]);
// 形状関数の微分の係数を求める
// dndxC[ino,n,k] ino節点のn方向微分のLk(k面積座標)の係数
// dNino/dn = dndxC[ino, n, 0] * L0 + dndxC[ino, n, 1] * L1 + dndxC[ino, n, 2] * L2 + dndxC[ino, n, 3]
double[, ,] dndxC = new double[nno, ndim, vertexCnt + 1]
{
{
{ 4.0 * dldx[0, 0], 0.0, 0.0, -1.0 * dldx[0, 0] },
{ 4.0 * dldx[0, 1], 0.0, 0.0, -1.0 * dldx[0, 1] },
},
{
{ 0.0, 4.0 * dldx[1, 0], 0.0, -1.0 * dldx[1, 0] },
{ 0.0, 4.0 * dldx[1, 1], 0.0, -1.0 * dldx[1, 1] },
},
{
{ 0.0, 0.0, 4.0 * dldx[2, 0], -1.0 * dldx[2, 0] },
{ 0.0, 0.0, 4.0 * dldx[2, 1], -1.0 * dldx[2, 1] },
},
{
{ 4.0 * dldx[1, 0], 4.0 * dldx[0, 0], 0.0, 0.0 },
{ 4.0 * dldx[1, 1], 4.0 * dldx[0, 1], 0.0, 0.0 },
},
{
{ 0.0, 4.0 * dldx[2, 0], 4.0 * dldx[1, 0], 0.0 },
{ 0.0, 4.0 * dldx[2, 1], 4.0 * dldx[1, 1], 0.0 },
},
{
{ 4.0 * dldx[2, 0], 0.0, 4.0 * dldx[0, 0], 0.0 },
{ 4.0 * dldx[2, 1], 0.0, 4.0 * dldx[0, 1], 0.0 },
},
};
// ∫dN/dndN/dn dxdy
// integralDNDX[n, ino, jno] n = 0 --> ∫dN/dxdN/dx dxdy
// n = 1 --> ∫dN/dydN/dy dxdy
double[, ,] integralDNDX = new double[ndim, nno, nno];
for (int n = 0; n < ndim; n++)
{
for (int ino = 0; ino < nno; ino++)
{
for (int jno = 0; jno < nno; jno++)
{
integralDNDX[n, ino, jno]
= area / 6.0 * (dndxC[ino, n, 0] * dndxC[jno, n, 0] + dndxC[ino, n, 1] * dndxC[jno, n, 1] + dndxC[ino, n, 2] * dndxC[jno, n, 2])
+ area / 12.0 * (dndxC[ino, n, 0] * dndxC[jno, n, 1] + dndxC[ino, n, 0] * dndxC[jno, n, 2]
+ dndxC[ino, n, 1] * dndxC[jno, n, 0] + dndxC[ino, n, 1] * dndxC[jno, n, 2]
+ dndxC[ino, n, 2] * dndxC[jno, n, 0] + dndxC[ino, n, 2] * dndxC[jno, n, 1])
+ area / 3.0 * (dndxC[ino, n, 0] * dndxC[jno, n, 3] + dndxC[ino, n, 1] * dndxC[jno, n, 3]
+ dndxC[ino, n, 2] * dndxC[jno, n, 3]
+ dndxC[ino, n, 3] * dndxC[jno, n, 0] + dndxC[ino, n, 3] * dndxC[jno, n, 1]
+ dndxC[ino, n, 3] * dndxC[jno, n, 2])
+ area * dndxC[ino, n, 3] * dndxC[jno, n, 3];
}
}
}
// ∫N N dxdy
double[,] integralN = new double[nno, nno]
{
{ 6.0 * area / 180.0, -1.0 * area / 180.0, -1.0 * area / 180.0, 0.0, -4.0 * area / 180.0, 0.0 },
{ -1.0 * area / 180.0, 6.0 * area / 180.0, -1.0 * area / 180.0, 0.0, 0.0, -4.0 * area / 180.0 },
{ -1.0 * area / 180.0, -1.0 * area / 180.0, 6.0 * area / 180.0, -4.0 * area / 180.0, 0.0, 0.0 },
{ 0.0, 0.0, -4.0 * area / 180.0, 32.0 * area / 180.0, 16.0 * area / 180.0, 16.0 * area / 180.0 },
{ -4.0 * area / 180.0, 0.0, 0.0, 16.0 * area / 180.0, 32.0 * area / 180.0, 16.0 * area / 180.0 },
{ 0.0, -4.0 * area / 180.0, 0.0, 16.0 * area / 180.0, 16.0 * area / 180.0, 32.0 * area / 180.0 },
};
// 要素剛性行列を作る
double[,] emat = new double[nno, nno];
for (int ino = 0; ino < nno; ino++)
{
for (int jno = 0; jno < nno; jno++)
{
emat[ino, jno] = media_P[0, 0] * integralDNDX[1, ino, jno] + media_P[1, 1] * integralDNDX[0, ino, jno]
- k0 * k0 * media_Q[2, 2] * integralN[ino, jno];
}
}
// 要素剛性行列にマージする
for (int ino = 0; ino < nno; ino++)
{
int iNodeNumber = no_c[ino];
if (ForceNodeNumberH.ContainsKey(iNodeNumber))
{
continue;
}
int inoGlobal = toSorted[iNodeNumber];
for (int jno = 0; jno < nno; jno++)
{
int jNodeNumber = no_c[jno];
if (ForceNodeNumberH.ContainsKey(jNodeNumber))
{
continue;
}
int jnoGlobal = toSorted[jNodeNumber];
//mat[inoGlobal, jnoGlobal] += emat[ino, jno];
//mat._body[inoGlobal + jnoGlobal * mat.RowSize] += emat[ino, jno];
// 実数部に加算する
//mat._body[inoGlobal + jnoGlobal * mat.RowSize].Real += emat[ino, jno];
// バンドマトリクス対応
mat._body[mat.GetBufferIndex(inoGlobal, jnoGlobal)].Real += emat[ino, jno];
}
}
}
/// <summary>
/// フィールドの回転を取得する
/// </summary>
/// <param name="rotXFValues"></param>
/// <param name="rotYFValues"></param>
protected override void calcRotField(out Complex[] rotXFValues, out Complex[] rotYFValues)
{
base.calcRotField(out rotXFValues, out rotYFValues);
rotXFValues = new Complex[NodeNumbers.Length];
rotYFValues = new Complex[NodeNumbers.Length];
const int ndim = Constants.CoordDim2D; //2; // 座標の次元数
const int vertexCnt = Constants.TriVertexCnt; //3; // 三角形の頂点の数(2次要素でも同じ)
//const int nodeCnt = Constants.TriNodeCnt_SecondOrder; //6; // 三角形2次要素
int nodeCnt = NodeNumbers.Length;
if (nodeCnt != Constants.TriNodeCnt_SecondOrder && nodeCnt != Constants.TriNodeCnt_FirstOrder)
{
return;
}
// 三角形の頂点を取得
double[][] pp = new double[vertexCnt][];
for (int ino = 0; ino < pp.GetLength(0); ino++)
{
FemNode node = _Nodes[ino];
System.Diagnostics.Debug.Assert(node.Coord.Length == ndim);
pp[ino] = new double[ndim];
pp[ino][0] = node.Coord[0];
pp[ino][1] = node.Coord[1];
}
// 面積座標の微分を求める
// dldx[k, n] k面積座標Lkのn方向微分
double[,] dldx = null;
double[] const_term = null;
KerEMatTri.TriDlDx(out dldx, out const_term, pp[0], pp[1], pp[2]);
// 形状関数の微分の係数を求める
// dndxC[ino,n,k] ino節点のn方向微分のLk(k面積座標)の係数
// dNino/dn = dndxC[ino, n, 0] * L0 + dndxC[ino, n, 1] * L1 + dndxC[ino, n, 2] * L2 + dndxC[ino, n, 3]
double[, ,] dndxC = null;
if (nodeCnt == Constants.TriNodeCnt_FirstOrder)
{
dndxC = new double[Constants.TriNodeCnt_FirstOrder, ndim, vertexCnt + 1]
{
{
{ 0.0, 0.0, 0.0, dldx[0, 0] },
{ 0.0, 0.0, 0.0, dldx[0, 1] },
},
{
{ 0.0, 0.0, 0.0, dldx[1, 0] },
{ 0.0, 0.0, 0.0, dldx[1, 1] },
},
{
{ 0.0, 0.0, 0.0, dldx[2, 0] },
{ 0.0, 0.0, 0.0, dldx[2, 1] },
},
};
}
else
{
dndxC = new double[Constants.TriNodeCnt_SecondOrder, ndim, vertexCnt + 1]
{
{
{ 4.0 * dldx[0, 0], 0.0, 0.0, -1.0 * dldx[0, 0] },
{ 4.0 * dldx[0, 1], 0.0, 0.0, -1.0 * dldx[0, 1] },
},
{
{ 0.0, 4.0 * dldx[1, 0], 0.0, -1.0 * dldx[1, 0] },
{ 0.0, 4.0 * dldx[1, 1], 0.0, -1.0 * dldx[1, 1] },
},
{
{ 0.0, 0.0, 4.0 * dldx[2, 0], -1.0 * dldx[2, 0] },
{ 0.0, 0.0, 4.0 * dldx[2, 1], -1.0 * dldx[2, 1] },
},
{
{ 4.0 * dldx[1, 0], 4.0 * dldx[0, 0], 0.0, 0.0 },
{ 4.0 * dldx[1, 1], 4.0 * dldx[0, 1], 0.0, 0.0 },
},
{
{ 0.0, 4.0 * dldx[2, 0], 4.0 * dldx[1, 0], 0.0 },
{ 0.0, 4.0 * dldx[2, 1], 4.0 * dldx[1, 1], 0.0 },
},
{
{ 4.0 * dldx[2, 0], 0.0, 4.0 * dldx[0, 0], 0.0 },
{ 4.0 * dldx[2, 1], 0.0, 4.0 * dldx[0, 1], 0.0 },
},
};
}
// 節点の面積座標
double[][] n_pts = null;
if (nodeCnt == Constants.TriNodeCnt_FirstOrder)
{
n_pts = new double[Constants.TriNodeCnt_FirstOrder][]
{
new double[vertexCnt] {
1.0, 0.0, 0.0
},
new double[vertexCnt] {
0.0, 1.0, 0.0
},
new double[vertexCnt] {
0.0, 0.0, 1.0
},
};
}
else
{
n_pts = new double[Constants.TriNodeCnt_SecondOrder][]
{
new double[vertexCnt] {
1.0, 0.0, 0.0
},
new double[vertexCnt] {
0.0, 1.0, 0.0
},
new double[vertexCnt] {
0.0, 0.0, 1.0
},
new double[vertexCnt] {
0.5, 0.5, 0.0
},
new double[vertexCnt] {
0.0, 0.5, 0.5
},
new double[vertexCnt] {
0.5, 0.0, 0.5
},
};
}
for (int ino = 0; ino < nodeCnt; ino++)
{
double[] L = n_pts[ino];
double[] dNdx = new double[nodeCnt];
double[] dNdy = new double[nodeCnt];
for (int k = 0; k < nodeCnt; k++)
{
int direction;
direction = 0;
dNdx[k] = dndxC[k, direction, 0] * L[0] + dndxC[k, direction, 1] * L[1] + dndxC[k, direction, 2] * L[2] + dndxC[k, direction, 3];
direction = 1;
dNdy[k] = dndxC[k, direction, 0] * L[0] + dndxC[k, direction, 1] * L[1] + dndxC[k, direction, 2] * L[2] + dndxC[k, direction, 3];
}
rotXFValues[ino] = new Complex();
rotYFValues[ino] = new Complex();
for (int k = 0; k < nodeCnt; k++)
{
// (rot(Ez)x = dEz/dy
rotXFValues[ino] += _FValues[k] * dNdy[k];
// (rot(Ez)y = - dEz/dx
rotYFValues[ino] += -1.0 * _FValues[k] * dNdx[k];
}
// rot(Ez)を磁界の値に変換する
rotXFValues[ino] *= _FactorForRot / _media_Q[0, 0];
rotYFValues[ino] *= _FactorForRot / _media_Q[1, 1];
}
}