Understanding interMixingFoam in OpenFOAM | 3-Phase Multiphase Flow Solver Explained

Full courses are available at : Udemy :https://www.udemy.com/course/multiphase-openfoam/?referralCode=1FBD349A538D3C5E34DC Our Website: https://learn.navygatetechnologies.com/product/multiphase-101/?v=13b5bfe96f3e In this lecture, we explore interMixingFoam, a powerful multiphase solver available in OpenFOAM for simulating three-phase flows where two fluids are miscible while remaining immiscible with a third phase. The tutorial begins with the physical concept behind the solver and compares it with other OpenFOAM solvers like interFoam and intraIsoFoam. We then dive into the source code structure of interMixingFoam, understand how alpha equations are modified for three phases, and configure a complete simulation case involving air, water, and sludge. Topics covered include: - Difference between interFoam and interMixingFoam - Handling miscible and immiscible phases - Alpha equations and MULES algorithm - Transport properties and diffusion coefficients - Surface tension setup - Boundary conditions for multiphase simulations - setFields configuration for multiple fluids - Debugging solver issues - Running and visualizing the simulation results in ParaView This lecture is ideal for CFD learners, OpenFOAM users, and researchers working on multiphase flow simulations. #OpenFOAM #CFD #MultiphaseFlow #interMixingFoam #ComputationalFluidDynamics #VOF #OpenFOAMTutorial #CFDSimulation #FluidMechanics #Engineering #NumericalMethods #ParaView #CFDLearning #MultiphaseSolver #FiniteVolumeMethod OpenFOAM, interMixingFoam, multiphase flow, CFD tutorial, three phase flow, miscible fluids, immiscible fluids, VOF method, alpha equation, MULES solver, OpenFOAM multiphase solver, CFD simulation, air water sludge simulation, transportProperties, setFieldsDict, ParaView visualization, CFD for beginners, computational fluid dynamics, interface capturing, OpenFOAM training 00:00 - Introduction to interMixingFoam and Multiphase Flow Concepts 01:16 - Exploring the interMixingFoam Source Code in OpenFOAM 01:53 - Understanding Alpha Equations and Three-Phase Modeling 03:13 - Creating the Simulation Case from an Existing Water Column Setup 03:46 - Defining Alpha Fields and Boundary Conditions for Air, Water, and Sludge 05:02 - Configuring Transport Properties, Diffusion, and Surface Tension 06:44 - Solver Settings and Updating controlDict for interMixingFoam 07:12 - Setting Initial Conditions Using setFieldsDict 08:25 - Running blockMesh, setFields, and Debugging Solver Errors