tImprove comments - cngf-pf - continuum model for granular flows with pore-pres… | |
git clone git://src.adamsgaard.dk/cngf-pf | |
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--- | |
commit c1aa4dce15eba37cc67913aa232337e9205feb70 | |
parent 7a535a7e52e53c1d5967573ab4b97a062198c120 | |
Author: Anders Damsgaard <[email protected]> | |
Date: Fri, 5 Apr 2019 08:55:34 +0200 | |
Improve comments | |
Diffstat: | |
M 1d_fd_simple_shear.jl | 42 +++++++++++++++++++----------… | |
1 file changed, 26 insertions(+), 16 deletions(-) | |
--- | |
diff --git a/1d_fd_simple_shear.jl b/1d_fd_simple_shear.jl | |
t@@ -12,43 +12,53 @@ G = 9.81 | |
## Wall parameters | |
+### Effective normal stress exerted by top wall | |
# A larger normal stress deepens the deformational depth | |
P_wall_ = [10, 20, 40, 60, 80, 120] .* 1e3 # normal stress [Pa] | |
-v_x_bot = 0.0 # bottom velocity along x [m/s] | |
-μ_wall = 0.40 # stress ratio at top wall | |
+### bottom velocity along x [m/s] | |
+v_x_bot = 0.0 | |
-## Nodes along z | |
+# stress ratio at top wall | |
+μ_wall = 0.40 | |
+ | |
+### Nodes along z | |
nz = 100 | |
## Material properties | |
+### nonlocal amplitude [-] | |
# lower values of A mean that the velocity curve can have sharper curves, e.g. | |
# at the transition from μ ≈ μ_s | |
-A = 0.48 # nonlocal amplitude [-] | |
- | |
+A = 0.48 # Henann and Kamrin 2016 | |
+### rate dependence beyond yield [-] | |
# lower values of b mean larger shear velocity for a given stress ratio above | |
# yield | |
-b = 0.9377 # rate dependence beyond yield [-] | |
+b = 0.9377 # Henann and Kamrin 2016 | |
-μ_s = 0.3819 # static yield friction coefficient [-] | |
+### bulk and critical state static yield friction coefficient [-] | |
+#μ_s = 0.3819 # Henann and Kamrin 2016 | |
μ_s = atan(deg2rad(22.0)) # Damsgaard et al 2013 | |
-ϕ = 0.38 # porosity [-] | |
+### porosity [-] | |
+#ϕ = 0.38 # Henann and Kamrin 2016 | |
+ϕ = 0.28 # Damsgaard et al 2013 | |
+ | |
+# representative grain size [m] | |
# lower values of d mean that the shear velocity curve can have sharper curves, | |
# e.g. at the transition from μ ≈ μ_s | |
-#const d = 1e-3 # representative grain size [m] | |
-d = 0.04 # representative grain size [m] - Damsgaard et al 2013 | |
+#d = 1e-3 # Henann and Kamrin 2016 | |
+d = 0.04 # Damsgaard et al 2013 | |
-ρ_s = 2.485e3 # grain material density [kg/m^3] | |
+### grain material density [kg/m^3] | |
+#ρ_s = 2.485e3 # Henann and Kamrin 2016 | |
+ρ_s = 2.6e3 # Damsgaard et al 2013 | |
-## Domain size | |
+## Spatial settings | |
origo_z = 0.0 | |
-#const L_z = 20.0*d | |
-L_z = 0.7 | |
- | |
-## Spatial coordiantes | |
+#L_z = 20.0*d # Henann and Kamrin 2016 | |
+L_z = 0.7 # Damsgaard et al 2013 | |
z = collect(range(origo_z, L_z, length=nz)) | |
Δz = z[2] - z[1] | |