Example #1
0
// get_porous_parameters extracts parameters based on region data
func get_porous_parameters(mdb *inp.MatDb, reg *inp.Region, ctag int) (RhoS0, nf0 float64, err error) {
	edat := reg.Etag2data(ctag)
	mat := mdb.Get(edat.Mat)
	if mat.Model != "group" {
		err = chk.Err("geost: material type describing layer must be 'group' with porous data")
		return
	}
	if matname, found := io.Keycode(mat.Extra, "p"); found {
		m := mdb.Get(matname)
		for _, p := range m.Prms {
			switch p.N {
			case "RhoS0":
				RhoS0 = p.V
			case "nf0":
				nf0 = p.V
			}
		}
	}
	if RhoS0 < 1e-7 {
		err = chk.Err("geost: initial density of solids RhoS0=%g is incorrect", RhoS0)
		return
	}
	if nf0 < 1e-7 {
		err = chk.Err("geost: initial porosity nf0=%g is incorrect", nf0)
	}
	return
}
Example #2
0
// GetElemInfo returns information about elements/formulations
//  cellType -- e.g. "qua8"
//  elemType -- e.g. "u"
func GetElemInfo(cell *inp.Cell, reg *inp.Region, sim *inp.Simulation) (info *Info, inactive bool, err error) {
	edat := reg.Etag2data(cell.Tag)
	if edat == nil {
		err = chk.Err("cannot get data for element {tag=%d, id=%d}", cell.Tag, cell.Id)
		return
	}
	inactive = edat.Inact
	infogetter, ok := infogetters[edat.Type]
	if !ok {
		err = chk.Err("cannot get info for element {type=%q, tag=%d, id=%d}", edat.Type, cell.Tag, cell.Id)
		return
	}
	info = infogetter(sim, cell, edat)
	if info == nil {
		err = chk.Err("info for element {type=%q, tag=%d, id=%d} is not available", edat.Type, cell.Tag, cell.Id)
	}
	return
}
Example #3
0
// NewElem returns a new element from its type; e.g. "p", "u" or "up"
func NewElem(cell *inp.Cell, reg *inp.Region, sim *inp.Simulation) (ele Elem, err error) {
	edat := reg.Etag2data(cell.Tag)
	if edat == nil {
		err = chk.Err("cannot get data for element {tag=%d, id=%d}", cell.Tag, cell.Id)
		return
	}
	allocator, ok := eallocators[edat.Type]
	if !ok {
		err = chk.Err("cannot get allocator for element {type=%q, tag=%d, id=%d}", edat.Type, cell.Tag, cell.Id)
		return
	}
	x := BuildCoordsMatrix(cell, reg.Msh)
	ele = allocator(sim, cell, edat, x)
	if ele == nil {
		err = chk.Err("element {type=%q, tag=%d, id=%d} is not available", edat.Type, cell.Tag, cell.Id)
	}
	return
}