Table 1 Physical quantities and units of the different displacement potential expressions used in SPECFEM2D_GLOBE and SPECFEM3D_GLOBE
Physical quantity | SPECFEM2D_GLOBE + Unit | SPECFEM3D_GLOBE + Unit |
|---|---|---|
Displacement | \({{{\bf{u}}}}_{f}=\frac{1}{{\rho }_{f}}\nabla \varphi \,\,\, {{\mbox{in}}}\,\,\,(m)\) | \({{{\bf{u}}}}_{f}=\frac{1}{{\rho }_{f}}\nabla ({\rho }_{f}\phi )\,\,\, {{\mbox{in}}}\,\,\,(m)\) |
Displacement potential | φ in (kg/m) | ϕ in (m2) |
Pressure | \(P=-\ddot{\varphi }\,\,\, {{\mbox{in}}}\,\,\,(N/{m}^{2})\) | \(P=-{\rho }_{f}\ddot{\phi }\,\,\,{{\mbox{in}}} \,\,\,(N/{m}^{2})\) |
