Document remaining new parameters in case.md

- Update bubble_model description to include 0=Particle choice
- Add new bubble params to section 9.2: drag_model, vel_model, charNz,
  input_path, pressure_force, gravity_force, write_void_evol
- Add interfacial flow IC params to patch section: interface_file,
  normFac, normMag, g0_ic, p0_ic

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: sbryngelson

docs/documentation/case.md

@@ -259,6 +259,16 @@ Setup: Only requires specifying `init_dir` and filename pattern via `zeros_defau
 Implementation: All variables and file handling are managed in `src/common/include/ExtrusionHardcodedIC.fpp` with no manual grid configuration needed.
 Usage: Ideal for initializing simulations from lower-dimensional solutions, enabling users to add perturbations or modifications to the base extruded fields for flow instability studies.
 
+The following parameters support hardcoded initial conditions that read interface data from files:
+
+| Parameter        | Type    | Description                                               |
+| ---:             | :---:   | :---                                                      |
+| `interface_file` | String  | Path to interface geometry data file                      |
+| `normFac`        | Real    | Interface normalization factor                            |
+| `normMag`        | Real    | Interface normal magnitude                                |
+| `g0_ic`          | Real    | Initial gas volume fraction for interfacial IC            |
+| `p0_ic`          | Real    | Initial pressure for interfacial IC                       |
+
 #### Parameter Descriptions
 
 - `num_patches` defines the total number of patches defined in the domain.
@@ -770,7 +780,7 @@ Details of the transducer acoustic source model can be found in \cite Maeda17.
 | ---:               | :----:  |          :---                                  |
 | `bubbles_euler`    | Logical | Ensemble-averaged bubble modeling |
 | `bubbles_lagrange` | Logical | Volume-averaged bubble modeling |
-| `bubble_model`     | Integer | [1] Gilmore; [2] Keller--Miksis; [3] Rayleigh-Plesset |
+| `bubble_model`     | Integer | [0] Particle; [1] Gilmore; [2] Keller--Miksis; [3] Rayleigh-Plesset |
 | `bub_pp%%R0ref`*†‡  | Real    | Reference bubble radius |
 | `bub_pp%%p0ref`*†‡  | Real    | Reference pressure |
 | `bub_pp%%rho0ref`*†‡| Real    | Reference density |
@@ -868,6 +878,13 @@ When ``polytropic = 'F'``, the gas compression is modeled as non-polytropic due
 | `epsilonb`            | Real    | Standard deviation scaling for the gaussian function      |
 | `charwidth`           | Real    | Domain virtual depth (z direction, for 2D simulations)    |
 | `valmaxvoid`          | Real    | Maximum void fraction permitted                           |
+| `drag_model`          | Integer | Drag model for bubble dynamics                            |
+| `vel_model`           | Integer | Velocity model for bubble interface                       |
+| `charNz`              | Integer | Characteristic size parameter                             |
+| `input_path`          | String  | Path to bubble input file (default: `./input`)            |
+| `pressure_force`      | Logical | Enable pressure gradient force                            |
+| `gravity_force`       | Logical | Enable gravitational force                                |
+| `write_void_evol`     | Logical | Write void fraction evolution data                        |
 
 - `nBubs_glb` Total number of bubbles. Their initial conditions need to be specified in the ./input/lag_bubbles.dat file. See the example cases for additional information.