Manual

Greens(k, xsource, xfield)

Compute.

allelxs(xyz, conn)

Construct array of all surface panel coordinates.

allnormals(elxs)

Construct array of all surface panel normals.

centroidareanormal!(c, n, x)

Compute triangle centroid and normal and its area.

dGreensdn(xsource, xfield, n)

We are assuming the normal to point INTO THE FLUID!

doublelayer!(A, xyz, conn, ir::IR)  where {IR<:TriRule}

Compute the double-layer matrix contribution.

Arguments

• A = matrix
• xyz = array of coordinates of the nodes
• conn = array of connectivities of the surface elements
• ir = integration rule

The contribution is addedto the matrix A. This matrix is also returned for convenience.

singlelayer!(B, xyz, conn, iroffdiagonal::IR, irdiagonal::IR)  where {IR<:TriRule}

Compute the single-layer matrix contribution.

Arguments

• B = complex matrix
• xyz = array of coordinates of the nodes
• conn = array of connectivities of the surface elements
• iroffdiagonal = integration rule for the off-diagonal terms
• irdiagonal = integration rule for the diagonal terms

The contribution is addedto the matrix B. This matrix is also returned for convenience.

surfnml!(n, J)

Compute the surface normal. A lot of effort has been put into eliminating all allocations, because this function is called in the innermost loop.

tricntr!(c, x)

Compute triangle centroid.

trinml!(n, x)

Compute triangle normal (NOT a unit normal, it has a length of twice the area of the triangle).

triunitnml!(n, x)

Compute the UNIT triangle normal.