Constructor function for the tdsops_t class.
'n', 'delta', 'operation', and 'scheme' are necessary arguments. Number of points 'n', distance between two points 'delta', the 'operation' the tridiagonal system defines, and the 'scheme' that specifies the exact scheme we choose to apply for the operation. The remaining arguments are optional. 'from_to' is necessary for interpolation and staggared derivative, and it can be 'v2p' or 'p2v'. If the specific region the instance is operating is not a boundary region, then 'bc_start' and 'bc_end' are either 'null' or not defined. 'sym' is relevant when the boundary condition is free-slip. If sym is .true. then it means the field we operate on is assumed to be an even function (symmetric) accross the boundary. If it is .false. it means that the field is assumed to be an odd function (anti-symmetric). 'c_nu', 'nu0_nu' are relevant when operation is second order derivative and scheme is compact6-hyperviscous.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | tds_n | |||
| real(kind=dp), | intent(in) | :: | delta | |||
| character(len=*), | intent(in) | :: | operation | |||
| character(len=*), | intent(in) | :: | scheme | |||
| integer, | intent(in), | optional | :: | n_halo |
Number of halo cells |
|
| character(len=*), | intent(in), | optional | :: | from_to |
'v2p' or 'p2v' |
|
| character(len=*), | intent(in), | optional | :: | bc_start |
Boundary Cond. |
|
| character(len=*), | intent(in), | optional | :: | bc_end |
Boundary Cond. |
|
| logical, | intent(in), | optional | :: | sym |
(==npaire), only for Neumann BCs |
|
| real(kind=dp), | intent(in), | optional | :: | c_nu |
params for hypervisc. |
|
| real(kind=dp), | intent(in), | optional | :: | nu0_nu |
params for hypervisc. |
return value of the function