max_depth_simple_shear.1 (2647B)
1 .Dd $Mdocdate$ 2 .Dt MAX_DEPTH_SIMPLE_SHEAR 1 3 .Os 4 .Sh NAME 5 .Nm max_depth_simple_shear 6 .Nd deformation characteristics from fluid perturbation 7 .Sh SYNOPSIS 8 .Nm 9 .Op Fl a Ar fluid-pressure-ampl 10 .Op Fl C Ar fluid-compressibility 11 .Op Fl D Ar fluid-diffusivity 12 .Op Fl g Ar gravity-accel 13 .Op Fl h 14 .Op Fl i Ar fluid-viscosity 15 .Op Fl k Ar fluid-permeability 16 .Op Fl O Ar fluid-pressure-top 17 .Op Fl P Ar grain-compressibility 18 .Op Fl p Ar grain-porosity 19 .Op Fl q Ar fluid-pressure-freq 20 .Op Fl R Ar fluid-density 21 .Op Fl r Ar grain-density 22 .Op Fl v 23 .Sh DESCRIPTION 24 The 25 .Nm 26 utility outputs the maximum expected deformation depth in a sheared 27 granular system with sinusoidal fluid-pressure perturbations from 28 the top. It is assumed that the granular layer has uniform thickness 29 and porosity. 30 .Pp 31 The arguments mirror the sister program 32 .Xr 1d_fd_simple_shear 1 33 and are as follows: 34 .Bl -tag -width Ds 35 .It Fl a Ar fluid-pressure-ampl 36 Amplitude of fluid-pressure perturbations [Pa] (default 0). 37 .It Fl C Ar fluid-compressibility 38 Fluid adiabatic compressibility [Pa^-1] (default 3.9e-10). 39 .It Fl D Ar fluid-diffusivity 40 Fluid diffusion coefficient [m^2/s] (default -1). Overrides fluid 41 permeability (-k), grain compressibility (-P), fluid compressibility 42 (-C), and fluid viscosity (-i). Disabled when set to a negative 43 value. 44 .It Fl g Ar gravity-accel 45 Gravity magnitude [m/s^2] (default 9.81). 46 .It Fl h 47 Show usage information. 48 .It Fl i Ar fluid-viscosity 49 Fluid dynamic viscosity [Pa*s] (1.787e-3). 50 .It Fl k Ar fluid-permeability 51 Darcian intrinsic permeability of granular material [m^2] (default 52 1.9e-15). 53 .It Fl O Ar fluid-pressure-top 54 Fluid pressure applied at the top boundary [Pa] (default 0). 55 .It Fl P Ar grain-compressibility 56 Granular material compressibility [Pa^-1] (default 1e-8). 57 .It Fl p Ar grain-porosity 58 Granular material porosity [-] (default 0.25). 59 .It Fl q Ar fluid-pressure-freq 60 Frequency of fluid-pressure perturbations [s^-1] (default 1). 61 .It Fl R Ar fluid-density 62 Fluid density [kg/m^3] (default 1000). 63 .It Fl r Ar grain-density 64 Granular material density [kg/m^3] (default 2600). 65 .It Fl v 66 Show version information. 67 .El 68 .Pp 69 The result is written to stdout in the following tab-delimited 70 format: 71 .Pp 72 .Bl -enum -compact 73 .It 74 maximum deformation depth [m] 75 .It 76 skin depth [m] 77 .El 78 .Sh EXIT STATUS 79 .Nm 80 exits 0 on succes, and >0 if a runtime error occurs: 81 .Pp 82 .Bl -tag -compact 83 .It 0 84 successful exit 85 .It 1 86 unspecified error 87 .It 2 88 .Xr pledge 2 89 error (OpenBSD only) 90 .It 10 91 skin depth vs. depth error 92 .It 11 93 no stress minima found in search range 94 .Sh SEE ALSO 95 .Xr 1d_fd_simple_shear 1 96 .Xr shear_flux 1 97 .Sh AUTHORS 98 .An Anders Damsgaard Aq Mt anders@adamsgaard.dk