Basic Introduction @ Computational Fluid Dynamics (CFD) @ Open Foam part 1

OpenFOAM (Open Source Field Operation and Manipulation) is a popular open-source computational fluid dynamics (CFD) simulation software package used for simulating and solving complex fluid flow and heat transfer problems. It was developed by the OpenFOAM Foundation and is widely used in academia and industry for a wide range of applications, including aerodynamics, automotive design, chemical processing, and environmental modeling.
Here's a basic introduction to OpenFOAM and CFD simulation:
CFD Simulation: Computational Fluid Dynamics (CFD) is a branch of fluid mechanics that uses numerical methods and algorithms to solve and analyze fluid flow and heat transfer problems. CFD simulations are used to predict and visualize the behavior of fluids (liquids and gases) in various physical systems.

OpenFOAM: OpenFOAM is an open-source CFD software package that provides a comprehensive suite of tools for simulating fluid flow and heat transfer. It is written primarily in C++ and is highly customizable and extensible. OpenFOAM is known for its flexibility, as it allows users to define and modify their own equations and boundary conditions.
Key Features:
Open Source: OpenFOAM is distributed under the GNU General Public License (GPL), making it freely available to users. This open-source nature encourages collaboration and the development of a wide range of add-on modules and utilities.
Versatility: OpenFOAM can handle a variety of fluid flow problems, including incompressible and compressible flows, turbulence modeling, multiphase flows, heat transfer, and more.
Customization: Users can customize and extend OpenFOAM to suit their specific simulation needs by creating custom solvers, boundary conditions, and post-processing tools.
Pre-Processing and Post-Processing: OpenFOAM provides tools for mesh generation, simulation setup, and post-processing of results. Users can import geometries, create meshes, and visualize simulation results using built-in or third-party tools.
Parallel Processing: OpenFOAM is capable of parallel computing, allowing users to distribute simulations across multiple processors or clusters for faster computations.
Workflow:
Pre-Processing: This phase involves importing or creating the geometry of the system, generating a mesh that discretizes the geometry into smaller elements, and specifying boundary conditions and initial conditions.