>> Poisson_T6_iso_post NOTE: no point source data supplied. Reset flag? (Echo of msh_remarks.tmp) =================== Begin Application Remarks ============================ Numerical check T6 isoparametric Poisson element via patch test with only interion nodes unknown mesh 4--------7----------3 outer boundary nodes assigned | / | | (2) / | u(x,y) = 1 + 2x + 3y 8 9 6 | / (1) | | / | Which require the answer 1--------5----------2 at node 9 of u = 20 G_x = 2, G_y = 3 Nodal dof: temperature (or potential value) Element type = 1 (a Poisson, everywhere) Element connection: six nodes per element Element properties 6 (columns in msh_properties.tmp): Conductivity (K), Heat generation rate (Q), Thickness (Thick) ==================== End Application Remarks ============================ Read 9 nodes. (Echo node, file msh_bc_xyz.tmp) node, bc_flags, 2 coordinates 1, 1 0 0 2, 1 10 0 3, 1 10 6 4, 1 0 6 5, 1 5 0 6, 1 10 3 7, 1 5 6 8, 1 0 3 9, 0 5 3 Note: expecting 8 displacement BC values. Read 2 elements with type & 6 nodes each. (Echo element number, file msh_typ_nodes.tmp) 1, 1 1 2 3 5 6 9 2, 1 1 3 4 9 7 8 Read 8 EBC data sets with Node, DOF, Value. (Echo of file msh_ebc.tmp) 1 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 1 0 7 1 0 8 1 0 NOTE converted EBC values to standard patch test Constant gradients are G_x=2, G_y=3 (Echoing file msh_properties.tmp) 3 homogeneous material values per type 1000 0 1 NOTE individual element properties echo skipped Resultant input sources: Totals = 0 Computed Solution: Node, 1 results per node 1 1 2 21 3 39 4 19 5 11 6 30 7 29 8 10 9 20 <=== required solution value Reactions at Displacement BCs Node, DOF, Reaction Value 1 1 -7000 2 1 -3000 3 1 7000 4 1 3000 5 1 -20000 6 1 8000 7 1 20000 8 1 -8000 Totals = 3.6380e-12 Element Post-processing: Element number 1 _______________ Point x-, y-coordinates Gradient vector Heat Flux vector 1, 6.66667, 2 1, 2, 3 <=== required constant gradient 1, -2000, -3000 2, 4, 1.2 2, 2, 3 <=== required constant gradient 2, -2000, -3000 3, 8, 3.6 3, 2, 3 <=== required constant gradient 3, -2000, -3000 4, 8, 1.2 4, 2, 3 <=== required constant gradient 4, -2000, -3000 Element number 2 _______________ Point x-, y-coordinates Gradient vector Heat Flux vector 1, 3.33333, 4 1, 2, 3 <=== required constant gradient 1, -2000, -3000 2, 2, 2.4 2, 2, 3 <=== required constant gradient 2, -2000, -3000 3, 2, 4.8 3, 2, 3 <=== required constant gradient 3, -2000, -3000 4, 6, 4.8 4, 2, 3 <=== required constant gradient 4, -2000, -3000 Total solution integral = 1200 Total solution volume = 60 >> quit