# Bubble Column Tutorial for MultiMorph

## Description

This case is designed to demonstrate the functionality of the
accumulationToContinuous morphology transfer model. The geometry is represented
by a rectangular channel. Initially only continuous air (airC) and water are
present, which share a pronounced interface and therefore form a stagnant
stratification. From the inlet at the bottom, disperse air (airD) is injected.
Disperse air rises through the water phase, passes the continuous airC-water
interface and becomes transformed into continuous air.

## Technical Information

- continuous phases: airC, water
- disperse phase: airD
- 2D
- 25 x 75 cells
- 0.15 m x 0.5 m
- baseline model setup for (airD in water)
- definitePhases blendingMethod
- residualDrag for (airD in airC)
- accumulationToContinuous phase transfer model for (airD in airC)
- baseline turbulence model setup

## Pre-Processing

Phases are initialised with set fields.

## Post-Processing

Vertical line data of pressure, phase volume fraction and velocities are stored
via a singleGraph functionObjectDictionary.

A createGraphs script is available in the validation directory, which is
called by Allrun.
