Update fix_wall_stochastic.txt

[Syntax:]

fix ID group-ID wall/stochastic reflectionstyle seed face pos temp velx vely velz accomx accomy accomz ... :pre

fix ID group-ID wall/reflect/stochastic reflectionstyle seed face pos temp velx vely velz accomx accomy accomz ... :pre

ID, group-ID are documented in "fix"_fix.html command :ulb,l

wall/stochastic = style name of this fix command :l

wall/reflect/stochastic = style name of this fix command :l

one or more face/arg pairs may be appended :l

reflectionstyle = diffusive or maxwell or cercignanilampis :l

seed = random seed for stochastic wall (must be less than 900000000) :l

[Examples:]

fix zwalls all wall/stochastic diffusive 23424 zlo EDGE 300 0.1 0.1 0 zhi EDGE 200 0.1 0.1 0

fix ywalls all wall/stochastic maxwell 345533 ylo 5.0 300 0.1 0.0 0.0 0.8 yhi 10.0 300 0.1 0.0 0.0 0.8

fix xwalls all wall/stochastic cercignanilampis 2308 xlo 0.0 300 0.0 0.1 0.9 0.8 0.7 xhi EDGE 300 0.0 0.1 0 0.9 0.8 0.7 units box :pre

fix zwalls all wall/reflect/stochastic diffusive 23424 zlo EDGE 300 0.1 0.1 0 zhi EDGE 200 0.1 0.1 0

fix ywalls all wall/reflect/stochastic maxwell 345533 ylo 5.0 300 0.1 0.0 0.0 0.8 yhi 10.0 300 0.1 0.0 0.0 0.8

fix xwalls all wall/reflect/stochastic cercignanilampis 2308 xlo 0.0 300 0.0 0.1 0.9 0.8 0.7 xhi EDGE 300 0.0 0.1 0 0.9 0.8 0.7 units box :pre

[Description:]