Free Engineering Simulation Tutorial - Opensource Software & Simulation Guides

CFD simulation of a shell and tube heat exchanger lets you see exactly how heat moves between the hot and cold streams and where the design can be improved. In this free tutorial you will simulate a shell and tube heat exchanger with a baffle and multiple inlets and outlets in ANSYS Fluent , across three video parts covering geometry import, solver setup and results post-processing. Table of Contents 1. Introduction and Working Principle 2. Part 1 — Geometry Import and Domain Setup 3. Part 2 — Solver Setup and Boundary Conditions 4. Part 3 — Results and Post-Processing 5. Evaluating Heat Exchanger Performance 6. Frequently Asked Questions Introduction and Working Principle A shell and tube heat exchanger transfers heat between two fluids: one flows through a bundle of tubes (the tube side) while the other flows around those tubes inside a cylindrical shell (the shell side). Heat conducts through the tube walls from the hotter stream to the c...

CFD analysis of a double slope solar still lets you predict freshwater yield before building any hardware. In this free tutorial you will simulate a double slope solar still in ANSYS Fluent using the VOF multiphase model and the solar load model, across four short video parts covering geometry, meshing, physics setup and post-processing. Table of Contents 1. Introduction and Governing Physics 2. Part 1 — Geometry and Domain Setup 3. Part 2 — Meshing and Mesh Quality 4. Part 3 — Physics, VOF and Solar Load Model 5. Part 4 — Solution and Post-Processing 6. Validation and Further Work 7. Frequently Asked Questions Introduction and Governing Physics A double slope solar still is a shallow basin of saline water enclosed by two inclined transparent glass covers in a symmetric gable arrangement. Solar radiation passes through the glass and is absorbed at the blackened basin, heating the water. Vapour rises from the free surface, condenses on the...

OpenFOAM · Solver Processing · 2026 OpenFOAM Solver Processing in 2026 The heart of every simulation: how to configure boundary conditions, mesh motion, physics models, numerical schemes and the right solver application to run an OpenFOAM case correctly. Pre-processing builds the mesh; post-processing shows the results — but processing is where the physics actually gets solved. This is the stage where OpenFOAM turns your case files into a flow field, and it's where the most important decisions live: the boundary conditions , any mesh motion , the physics models , the numerics , and the solver application you run. Get these right and the solver converges to an accurate answer; get them wrong and it diverges. This 2026 guide walks through all five, so you can set up the processing stage with confidence. What This Guide Covers What Is Processing? Boundary Conditions Mesh Motion Models Numerics Solver Applications Proce...