| 1 |
ksteube |
1147 |
# Import the necessary modules. |
| 2 |
|
|
from esys.escript import * |
| 3 |
|
|
from esys.escript.linearPDEs import LinearPDE |
| 4 |
|
|
from esys.finley import Brick |
| 5 |
|
|
from esys.pyvisi import Scene, DataCollector, Velocity, Camera |
| 6 |
|
|
from esys.pyvisi.constant import * |
| 7 |
|
|
|
| 8 |
|
|
PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images/" |
| 9 |
|
|
X_SIZE = 400 |
| 10 |
|
|
Y_SIZE = 400 |
| 11 |
|
|
JPG_RENDERER = Renderer.ONLINE_JPG |
| 12 |
|
|
|
| 13 |
|
|
#... set some parameters ... |
| 14 |
|
|
lam=1. |
| 15 |
|
|
mu=0.1 |
| 16 |
|
|
alpha=1.e-6 |
| 17 |
|
|
xc=[0.3,0.3,1.] |
| 18 |
|
|
beta=8. |
| 19 |
|
|
T_ref=0. |
| 20 |
|
|
T_0=1. |
| 21 |
|
|
#... generate domain ... |
| 22 |
|
|
mydomain = Brick(l0=1.,l1=1., l2=1.,n0=10, n1=10, n2=10) |
| 23 |
|
|
x=mydomain.getX() |
| 24 |
|
|
#... set temperature ... |
| 25 |
|
|
T=T_0*exp(-beta*length(x-xc)) |
| 26 |
|
|
#... open symmetric PDE ... |
| 27 |
|
|
mypde=LinearPDE(mydomain) |
| 28 |
|
|
mypde.setSymmetryOn() |
| 29 |
|
|
#... set coefficients ... |
| 30 |
|
|
C=Tensor4(0.,Function(mydomain)) |
| 31 |
|
|
for i in range(mydomain.getDim()): |
| 32 |
|
|
for j in range(mydomain.getDim()): |
| 33 |
|
|
C[i,i,j,j]+=lam |
| 34 |
|
|
C[j,i,j,i]+=mu |
| 35 |
|
|
C[j,i,i,j]+=mu |
| 36 |
|
|
msk=whereZero(x[0])*[1.,0.,0.] \ |
| 37 |
|
|
+whereZero(x[1])*[0.,1.,0.] \ |
| 38 |
|
|
+whereZero(x[2])*[0.,0.,1.] |
| 39 |
|
|
sigma0=(lam+2./3.*mu)*alpha*(T-T_ref)*kronecker(mydomain) |
| 40 |
|
|
mypde.setValue(A=C,X=sigma0,q=msk) |
| 41 |
|
|
#... solve pde ... |
| 42 |
|
|
u=mypde.getSolution() |
| 43 |
|
|
#... calculate von-Misses |
| 44 |
|
|
g=grad(u) |
| 45 |
|
|
sigma=mu*(g+transpose(g))+lam*trace(g)*kronecker(mydomain)-sigma0 |
| 46 |
|
|
sigma_mises=sqrt(((sigma[0,0]-sigma[1,1])**2+(sigma[1,1]-sigma[2,2])**2+ \ |
| 47 |
|
|
(sigma[2,2]-sigma[0,0])**2)/6. \ |
| 48 |
|
|
+sigma[0,1]**2 + sigma[1,2]**2 + sigma[2,0]**2) |
| 49 |
|
|
|
| 50 |
|
|
# Create a Scene. |
| 51 |
|
|
s = Scene(renderer = JPG_RENDERER, x_size = X_SIZE, y_size = Y_SIZE) |
| 52 |
|
|
|
| 53 |
|
|
# Create a DataCollector reading directly from an escript object. |
| 54 |
|
|
dc = DataCollector(source = Source.ESCRIPT) |
| 55 |
|
|
dc.setData(disp = u,stress = sigma_mises) |
| 56 |
|
|
|
| 57 |
|
|
# Create a Velocity. |
| 58 |
|
|
v = Velocity(scene = s, data_collector = dc, viewport = Viewport.SOUTH_WEST, |
| 59 |
|
|
arrow = Arrow.THREE_D, color_mode = ColorMode.SCALAR, |
| 60 |
|
|
lut = Lut.COLOR, cell_to_point = True, outline = True) |
| 61 |
|
|
v.setScaleFactor(scale_factor = 0.3) |
| 62 |
|
|
|
| 63 |
|
|
# Create a Camera. |
| 64 |
|
|
c = Camera(scene = s, data_collector = dc, viewport = Viewport.SOUTH_WEST) |
| 65 |
|
|
c.isometricView() |
| 66 |
|
|
|
| 67 |
|
|
# Render the object. |
| 68 |
|
|
s.render(image_name = PYVISI_EXAMPLE_IMAGES_PATH + "heatedblock.jpg") |
| 69 |
|
|
|
Parent Directory
| 
Revision Log