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Practical calculators, technical guides, prompts, and references for CFD, aerodynamics, hydrodynamics, and engineering computation.
Popular Calculators
y+ and First Cell Height Calculator
Estimate the first cell height for viscous sublayer resolution in CFD.
Reynolds Number Calculator
Calculate flow regime and turbulence onset using SI inputs for engineering flow-regime estimates.
Courant Number Calculator
Calculate Courant number from SI inputs (velocity, time step, cell size) for CFD stability estimates.
Latest Guides
Discover how to safely use AI and Machine Learning in CFD and engineering simulation. Learn where LLMs excel (scripting) and where they fail (physics).
Understanding why monitoring residuals alone can lead to false convergence conclusions.
A guide for CFD engineers on how to structure AI prompts for setting up simulations, defining physics, evaluating boundary conditions, and catching missing assumptions.
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Engineering Disclaimer: All tools and guides are for educational and estimation purposes. They do not replace professional engineering judgment or certified solvers.