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‎pyexamples/box2/README

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In Python do:
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execfile("runcase.py")

‎pyexamples/box2/box2_in.py

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###########################################################################
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# DESCRIPTION OF PROBLEM (box2):
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#
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# This is a Python version of the box case from Andreas Holm
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###########################################################################
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#-Geometry
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bbb.mhdgeo=-1 #-set cartesian geometry
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bbb.isfixlb=2 #left boundary as sym. plane; no flux at cut
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grd.radx= 4.e-2 #-outer "radial" wall
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grd.rad0=0.0 #-location of 'radial' separ'x for cylinder or slab
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grd.radm=-1.e-2 #-minimum "radial" position
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grd.za0 = 0. #-poloidal symmetry plane location
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grd.zax=3.0 #-poloidal location of divertor plate
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grd.zaxpt=2.25 #-poloidal location of x-point
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grd.alfyt=-2.0 #radial nonuniformity factor; < 0 => expanding
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grd.alfxt=2.76 #poliodal nonuniformity factor; to make smooth
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#transition to exp. grid, alfxt should satisfy
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#the eqn dzun = (zax-zaxpt+dzun)
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# (1-exp(-alfxt/(nx-ixpt2+1))) /
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# (1-exp(-alfxt))
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#where dzun = (zaxpt-za0)/ixpt2 and
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#ixpt2 = ncore(1,2).
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grd.btfix = 2. #constant total B-field
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grd.bpolfix = .2 #constant poloidal B-field
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#-Grid
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bbb.gengrid=1; #-Note: for slab the grid is not saved in gridue
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bbb.ngrid=1
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com.nycore[0]=2
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com.nysol[0]=4
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com.nxleg[0,1]=3
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com.nxcore[0,1]=3
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#-Boundary conditions
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bbb.isnicore[0]=1 #-same density at all core points
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bbb.ncore=1.1e19 #-density on core boundary
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bbb.iflcore=1 #if=1, specify core power
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bbb.tcoree=25.0 #-used if iflcore=0
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bbb.tcorei=25.0 #-used if iflcore=0
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bbb.pcoree = 2.5e4 #-used if iflcore=1
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bbb.pcorei = 2.5e4 #-used if iflcore=1
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bbb.recycp=0.98 #-recycling coef at plates if ndatlb,rb=0
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bbb.albdsi=0.99 #-albedos at inner gas source locations
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bbb.albdso=0.99 #-albedos at inner gas source locations
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bbb.istepfc=0; bbb.istipfc=0 #-priv. flux has zero temp. deriv.
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bbb.istewc=0; bbb.istiwc=0 #-wall has zero temp. deriv.
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bbb.bcee = 4.; bbb.bcei = 2.5 #-energy transmission coeffs.
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bbb.bcen = 0. #-energy transmission coefficint for neutrals
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bbb.isupss = 0 #-parallel vel sonic
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bbb.isupcore = 0 #-parallel vel =0 on core bndry
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#-Transport coefficients
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bbb.difni=0.5
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bbb.kye=0.7
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bbb.kyi=0.7
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bbb.travis=1.0
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bbb.parvis=1.0
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#-Flux limits
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bbb.flalfe=0.2
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bbb.flalfi=0.2
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bbb.flalfgx=1.e0
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bbb.flalfgy=1.e0
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bbb.flalfgxy=1.e0
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bbb.flalfv=0.5
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# Finite difference algorithms
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bbb.methe=33;bbb.methu=33;bbb.methg=33
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bbb.methn=33;bbb.methi=33
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#-Solver package
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bbb.svrpkg = "nksol" #Newton solver using Krylov method
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bbb.mfnksol=-3
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bbb.epscon1=0.005
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bbb.ftol=1e-10
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bbb.premeth = "ilut" #Solution method for precond. Jacobian matrix
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bbb.runtim=1e-07
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bbb.rlx=0.9
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###bbb.del=1.e-8 #-this one causes syntax error!
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#-Neutral gas propeties
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bbb.tfcx=5.;bbb.tfcy=5. #Franck-Condon temperatures
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bbb.cngfx=1.;bbb.cngfy=1. #turn-on grad(T_g) flux if =1
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bbb.cngflox=1.;bbb.cngfloy=0. #turn-on drift with ions if =1
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bbb.cngmom = 1. #ion-gas momentum transfer
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bbb.eion = 5. #birth energy of ions
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bbb.ediss = 10. #dissoc. energy lost from elecs (eion=2*ediss)
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bbb.isrecmon = 1 #=1 turns on recombination
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bbb.cfupcx=1.0 # factor multipling momentum cx
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bbb.cfticx=1.0 # factor multipling cx terms in ion energy eqn
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#-Parallel neutral momentum equation
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bbb.isupgon[0]=1
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if (bbb.isupgon[0] == 1):
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bbb.isngon=0
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com.ngsp=1
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com.nhsp=2
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###bbb.ziin[com.nhsp-1]=1
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bbb.ziin[0]=1
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bbb.ziin[1]=0
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#-the following are probably default, set them anyway to be sure
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bbb.cngmom=0
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bbb.cmwall=0
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bbb.cngtgx=0
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bbb.cngtgy=0
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bbb.kxn=0
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bbb.kyn=0
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#-Currents and potential parameters
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bbb.isphion=0
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bbb.rsigpl=1.e-8 #anomalous cross-field conductivity
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bbb.cfjhf=0. #turn-on heat flow from current (fqp)
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bbb.jhswitch=0 #Joule Heating switch
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# Atomic physics packages
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#com.istabon=10 #DEGAS rates
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com.istabon=0 #-analytic rates
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#-Misc
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bbb.restart=0

‎pyexamples/box2/plotcontour.py

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import matplotlib
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import matplotlib.gridspec as gridspec
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gs=gridspec.GridSpec(2, 2)
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plt.figure(10)
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plt.subplot(gs[0,0])
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CS = plt.contour(com.zm[:,:,0], com.rm[:,:,0], bbb.te/ev)
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plt.clabel(CS, inline=1, fontsize=10)
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params = {'mathtext.default': 'regular' }
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plt.rcParams.update(params)
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plt.title('T$\mathregular{_e}$ [ev]')
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plt.ylabel('R [m]')
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plt.grid(True)
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plt.subplot(gs[0,1])
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CS = plt.contour(com.zm[:,:,0], com.rm[:,:,0], bbb.ti/ev)
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plt.clabel(CS, inline=1, fontsize=10)
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plt.title('T$\mathregular{_i}$ [ev]')
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plt.grid(True)
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plt.subplot(gs[1,0])
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CS = plt.contour(com.zm[:,:,0], com.rm[:,:,0], bbb.ni[:,:,0]/1e20)
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plt.clabel(CS, inline=1, fontsize=10)
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plt.title('N$\mathregular{_i}$/1e20 [m-3]')
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plt.xlabel('Z [m]')
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plt.ylabel('R [m]')
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plt.grid(True)
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plt.subplot(gs[1,1])
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CS = plt.contour(com.zm[:,:,0], com.rm[:,:,0], bbb.up[:,:,0]/1e3)
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plt.clabel(CS, inline=1, fontsize=10)
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plt.title('U$\mathregular{_p}$/1e3 [m/s]')
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plt.xlabel('Z [m]')
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plt.grid(True)
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plt.show()

‎pyexamples/box2/runcase.py

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#import uedge as ue
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from uedge import *
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#import uefacets
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import matplotlib.pyplot as plt
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import numpy as np
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import os
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##-how to do this better?
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execfile("../pylib/plotmesh.py")
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execfile("../pylib/plotvar.py")
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execfile("../pylib/plotr.py")
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execfile("../pylib/showrange.py")
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execfile("../pylib/paws.py")
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plt.ion()
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#-read UEDGE settings
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execfile("box2_in.py")
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#-do a quick preliminary run to set all internals
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bbb.restart=0; bbb.ftol=1e10; bbb.dtreal = 1e-6; bbb.exmain()
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#-show grid
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plotmesh()
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wait = raw_input("PAUSING, PRESS ENTER TO CONTINUE...")
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#-this should be done in uefacets
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ev=1.6022e-19
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if (0):
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ue.restore("box2.h5")
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bbb.dtreal = 1e20; bbb.exmain()
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else:
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#-set up some initial state
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bbb.ngs=1e14; bbb.ng=1e14
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bbb.nis=1e20; bbb.ni=1e20
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bbb.ups=0.0; bbb.up=0.0
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bbb.tes=ev; bbb.te=ev
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bbb.tis=ev; bbb.ti=ev
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#
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#-Note: if you make a gap here then it will change the logic of if-else!
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#
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#-run to steady state
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bbb.restart=1; bbb.ftol=1e-8;
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bbb.isbcwdt=1
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bbb.dtreal = 1e-14; bbb.itermx=30; bbb.exmain()
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bbb.t_stop=1e0
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bbb.rundt()
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bbb.dtreal=1e20; bbb.isbcwdt=0; bbb.exmain()
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execfile('plotcontour.py')
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paws()
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##-now refine the solution on a larger grid
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#com.nycore[0]=2
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#com.nysol[0]=6
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#com.nxleg[0,1]=8
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#com.nxcore[0,1]=8
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#bbb.restart=1; bbb.newgeo=1; bbb.icntnunk=0
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#bbb.dtreal = 1e-14; bbb.ftol=1e-10;
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#bbb.isbcwdt=1; bbb.itermx=30; bbb.exmain()
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#plotmesh()
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#paws()
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#bbb.t_stop=2e0; bbb.ftol=1e-8; bbb.rundt()
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#bbb.dtreal=1e20; bbb.isbcwdt=0; bbb.exmain()
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#execfile('plotcontour.py')
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#paws()
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#==========================================================================#

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