# Bubble Coalescence Simulation - Default Parameters
# Format: key=value (one per line, # for comments)
# This file provides a typical bubble coalescence configuration

# ============================================================
# Case Identification
# ============================================================
# Case number for folder naming (4-digit: 1000-9999)
# Output will be created in simulationCases/<CaseNo>/
CaseNo=2000

# ============================================================
# Physical Parameters (Dimensionless Numbers)
# ============================================================
# Ohnesorge number (outer fluid), based on the small-bubble radius:
# Oh_s = mu/sqrt(rho*sigma*R_s)
# Controls viscous vs surface tension effects
OhOut=1e-2

# Density ratio: rho_inner/rho_outer (bubble in liquid ~ 1e-3)
RhoIn=1e-3

# Radius ratio: R_large/R_small
# In this repo the small bubble is the unit length, so:
#   R_s = 1, R_l = Rr
# Available values (matching DataFiles): 1.00, 1.50, 2.00, 4.00, 8.00
Rr=1.00

# Note: MuRin (viscosity ratio inner/outer) is hardcoded as 1e-2 in the source

# ============================================================
# Numerical Parameters (Mesh Adaptation)
# ============================================================
# Maximum refinement level (2^MAXlevel cells at finest resolution)
# Level 10 -> 1024 cells, Level 12 -> 4096 cells
MAXlevel=12

# ============================================================
# Time Control
# ============================================================
# Maximum simulation time (dimensionless, based on capillary time scale)
tmax=1.5

# ============================================================
# Geometry Configuration
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# Wall position (distance from origin to wall)
# Domain size is computed as: Ldomain = zWall + 2 + 2*Rr + 4.0
zWall=0.05

# ============================================================
# Output Configuration
# ============================================================
# Output directory name (created inside case folder)
output_dir=results

# Snapshot interval (defined in source code as tsnap = 1e-2)
# Log interval (defined in source code as tsnap2 = 1e-4)