Variable list

List of ParaGeo Variables

Element Variables

GENERAL  VARIABLES

•Elt_mass - Element mass

•Crit_tim - Element critical time step

•Elt_volu - Element volume

•Elt_dens - Element density

•Elt_pore - Element pore pressure

•Elt_temp - Element temperature

•Porosity - Element Porosity

•Void_rat - Element Void Ratio

•Mat_no - Material  number

•Group_no - Group  number

COUPLING  VARIABLES (GEOMECHANICAL FIELD)

•Por_geoc - Current pore pressure in geomechanical field (Coupled analysis with undrained split only)

•Por_Geot - Pore pressure at t+Dt  in geomechanical field (Coupled analysis with undrained split only)

•Cou_stif - Current Coupling Bulk modulus in geomechanical field (Coupled analysis with undrained split only)

STRESS  VARIABLES

•Strs_xx - Stress in X-direction

•Strs_yy - Stress in Y-direction

•Strs_zz -  Stress in Z-direction

•Strs_xy - Shear Stress in XY-direction

•Strs_yz - Shear Stress in YZ-direction (3-D only)

•Strs_zx - Shear Stress in ZX-direction (3-D only)

•Press / Effmean - Effective mean stress (p')

•Efstrs / Vonmises - Deviatoric effective stress (q)

•Strs_p1 - Principal stress 11 - (most tensile)

•Strs_p2 - Principal stress 22 - (intermediate)

•Strs_p3 - Principal stress 33 - (Most compressive)

STRAIN  VARIABLES

•Strn_xx - Strain in X-direction

•Strn_yy - Strain in Y-direction

•Strn_zz - Strain in Z-direction

•Strn_xy - Shear Strain in XY-direction

•Strn_yz - Shear Strain in YZ-direction (3-D only)

•Strn_zx - Shear Strain in ZX-direction (3-D only)

•Vol_stn - Volumetric strain

•Efstrn - Deviatoric effective strain

•Strn_p1 - Principal strain 11 - (most tensile)

•Strn_p2 - Principal strain 22 - (intermediate)

•Strn_p3 - Principal strain 33 - (Most compressive)

POROUS FLOW  VARIABLES

•Pf_velocx - Fluid flow rate in X direction

•Pf_velocy - Fluid flow rate in Y direction

•Pf_velocz - Fluid flow rate in Z direction (3D only)

•Pf_gradx - Pore pressure gradient components in X direction

•Pf_grady - Pore pressure gradient components in Y direction

•Pf_gradz - Pore pressure gradient components in Z direction (3D only)

THERMAL FLOW  VARIABLES

•Tm_velocx - Thermal flux in X direction

•Tm_velocy - Thermal flux in Y direction

•Tm_velocz - Thermal flux in Z direction (3D only)

•Tm_gradx - Thermal gradient in X direction

•Tm_grady - Thermal gradient in Y direction

•Tm_gradz - Thermal gradient in Z direction (3D only)

Nodal Variables

GENERAL  NODAL VARIABLES

•Disp_x - Displacement in X direction

•Disp_y - Displacement in Y direction

•Disp_z - Displacement in Z direction

•Veloc_x - Velocity in X direction

•Veloc_y - Velocity in X direction

•Veloc_z - Velocity in X direction

•Coord_x - X-coordinate

•Coord_y - Y-coordinate

•Coord_z - Z-coordinate

•Pore_nod - Pore pressure at nodes

•Temp_nod - Temperature at nodes

State Variables

Valid state variables will depend on the models being used.

DECOMPACTION  STATE  VARIABLES

•D_depcur - Decomp. Current Depth

•D_depref - Decomp. Reference Depth (curr)

•D_depprv - Decomp. Depth at previous step

•D_strnv - Decomp. Vol. Strain Increment

•D_porchg - Decomp. Porosity change (presc)

•D_stn11t - Decomp. Vol. Strain 11 Component

•D_stn22t - Decomp. Vol. Strain 22 Component

•D_porprv - Decomp. Porosity (Depth) time t

•D_porstp - Decomp. Porosity change (step)

DIAGENESIS  STATE  VARIABLES

•C_poros - Non-Mechanical Porosity Change

•C_poros1 - Non-Mechanical Porosity Change - Reaction 1

•C_poros2 - Non-Mechanical Porosity Change - Reaction 2

•C_poros3 - Non-Mechanical Porosity Change - Reaction 3

•C_poros4 - Non-Mechanical Porosity Change - Reaction 4

ELASTIC  STATE  VARIABLES

•Young - Young's Modulus

•Poiss - Poisson's Ratio

•Young11 - Youngs Modulus E(11)

•Young22 - Youngs Modulus E(22)

•Young33 - Youngs Modulus E(33)

•Poiss12 - Poissons Ratio v(12)

•Poiss23 - Poissons Ratio v(23)

•Poiss31 - Poissons Ratio v(31)

•Shear12 - Shear Modulus G(12)

•Shear23 - Shear Modulus G(23)

•Shear31 - Shear Modulus G(31)

FRACTURE  STATE  VARIABLES

•F_angle1 - Fracture 1 Angle

•F_state1 - Fracture 1 State (normal)

•F_ft1 - Fracture 1 Strength (normal)

•F_nstrs1 - Fracture 1 Stress (normal)

•F_nstrn1 - Fracture 1 Strain (normal)

•F_time1 - Fracture 1 Initiation time

•F_perm1 - Fracture 1 Permeability

•F_angle2 - Fracture 2 Angle

•F_state2 - Fracture 2 State (normal)

•F_ft2 - Fracture 2 Strength (normal)

•F_nstrs2 - Fracture 2 Stress (normal)

•F_nstrn2 - Fracture 2 Strain (normal)

•F_time2 - Fracture 2 Initiation time

•F_perm2 - Fracture 2 Permeability

HARDENING  STATE  VARIABLES

•H_lambda - Hardening modulus

•H_epvcom - Maximum compressive volume strain

•H_epvten - Maximum tensional volume strain

PLASTIC  STATE  VARIABLES

•P_flag - Plasticity flag

•P_strn - Effective Plastic Strain

•P_strn_r - Effective Plastic Strain Rate

•P_strnv - Plastic Volume Strain

•P_strnxx - Plastic Strain XX

•P_strnyy - Plastic Strain YY

•P_strnzz - Plastic Strain ZZ

•P_strnxy - Plastic Strain XY

•P_strnyz - Plastic Strain YZ

•P_strnzx - Plastic Strain ZX

•P_epvcom - Max. compressive volume strain

•P_epvten - Max. tensile volume strain

•P_conver - Convergence Flag

•P_comc - Pre-Consolidation Pressure

•P_tenc - Tensile Intercept

•P_state - Plastic state

•P_stten - Plastic state - Tension

•P_stshr - Plastic State - Shear

•P_stcap - Plastic State - Cap

•P_strv_r - Plastic Volume strain rate

•P_beta - Friction Angle (Beta)

•P_psi - Dilation Angle (Psi)

•P_d - Intercept (D)

•P_yield - von Mises Yield Stress

•R_ft1 - Rot-Crack Tensile stress 1

•R_ft2 - Rot-Crack Tensile stress 2

•R_ft3 - Rot-Crack Tensile stress 3

•R_epstn1 - Rot-Crack Total strain in 1

•R_epstn2 - Rot-Crack Total strain in 2

•R_epstn3 - Rot-Crack Total strain in 3

•R_edamg1 - Rot-Crack Damaged moduli 1

•R_edamg2 - Rot-Crack Damaged moduli 2

•R_edamg3 - Rot-Crack Damaged moduli 3

•R_damfac - Rot-Crack Damage Factor

•R_psang1 - Rot-Crack Angle 11

•R_psang2 - Rot-Crack Angle 22

•R_psang3 - Rot-Crack Angle 33

•R_state1 - Rot-Crack Fracture state 1

•R_state2 - Rot-Crack Fracture state 2

•R_state3 - Rot-Crack Fracture state 3

•R_elam1 - Rot-Crack Elastic modulus 1

•R_elam2 - Rot-Crack Elastic modulus 2

•R_elam3 - Rot-Crack Elastic modulus 3

•R_strn1 - Rot-Crack Fracture strain 1

•R_strn2 - Rot-Crack Fracture strain 2

•R_strn3 - Rot-Crack Fracture strain 3

•R_peak1 - Rot-Crack Peak tensile stress 1

•R_peak2 - Rot-Crack Peak tensile stress 2

•R_peak3 - Rot-Crack Peak tensile stress 3

•R_strs1 - Rot-Crack Normal Stress 1

•R_strs2 - Rot-Crack Normal Stress 2

•R_strs3 - Rot-Crack Normal Stress 3

•R_esoft1 - Rot-Crack Softening modulus 1

PLASTIC  ANISOTROPY  STATE  VARIABLES

•Pa_alpha - Alpha Rotational Hardening

•Pa_m - m(Alpha) Hardening parameter

•Pa_ad_xx - Alpha(d)XX Rotational hardening

•Pa_ad_yy - Alpha(d)YY Rotational hardening

•Pa_ad_zz - Alpha(d)ZZ Rotational hardening

•Pa_ad_xy - Alpha(d)XY Rotational hardening

•Pa_ad_yz - Alpha(d)YZ Rotational hardening

•Pa_ad_zx - Alpha(d)ZX Rotational hardening

POROELASTIC  STATE  VARIABLES

•E_kappa - Unloading Modulus

POROUS  FLOW  STATE  VARIABLES

•Flu_satu - Fluid saturation

•Biot_con - Biot constant

•Flu_visc - Fluid viscosity

•Flu_dens - Fluid density

•Perm_e - Isotropic permeability

•Perm_x - Permeability in x direction

•Perm_y - Permeability in y direction

•Perm_z - Permeability in z direction

•Storty - Storativity

•Knud_num - Knudsen number

•knud_rar - Knudsen rarefaction coefficient

•Knud_mul - Knudsen permeability multiplier

•Knd_numx - Knudsen number in X direction

•Knud_numy - Knudsen number in Y direction

•Knud_numz - Knudsen number in Z direction

•Knud_rarx - Knudsen rarefaction coefficient in X direction

•Knud_rary - Knudsen rarefaction coefficient in Y direction

•Knud_rarz - Knudsen rarefaction coefficient in Z direction

•Knud_mulx - Knudsen permeability multiplier in X direction

•Knud_muly - Knudsen permeability multiplier in Y direction

•Knud_mulz - Knudsen permeability multiplier in Z direction

THERMAL  STATE  VARIABLES

•Condb - Bulk conductivity

•Condb_x - Bulk conductivity in X

•Condb_y - Bulk conductivity in Y

•Condb_z - Bulk conductivity in Z

•Sheatb - Bulk specific heat

•Condg - Grain conductivity

•Condg_x - Grain conductivity in X

•Condg_y - Grain conductivity in Y

•Condg_z - Grain conductivity in Z

•Sheatg - Grain specific heat

•Condf - Fluid conductivity

•Sheatf - Fluid specific heat

•Peclet - Peclet number

VISCOPLASTIC  STATE  VARIABLES

•V_flag - Viscoplastic state

•V_strn - Viscoplastic Strain

•V_strn_r - Viscoplastic Strain Rate

•V_strnv - Viscoplastic Volume Strain

•V_strnxx - Viscoplastic Strain XX

•V_strnyy - Viscoplastic Strain YY

•V_strnzz - Viscoplastic Strain ZZ

•V_strnxy - Viscoplastic Strain XY

•V_strnyz - Viscoplastic Strain YZ

•V_strnzx - Viscoplastic Strain ZX

•V_strs - Viscoplastic Stress

•V_viscos - Viscoplastic Viscosity