Educational illustration comparing continuous fluid flow with smooth, colorful waves and discretised fluid flow with a grid of arrows.

An educational, high-clarity illustration showing the concept of CFD discretisation. The left side depicts a realistic continuous fluid — flowing water or coloured smoke with smooth streamlines and gradients showing velocity or density. The right side shows the same fluid discretised into a 2D or 3D grid of cells or nodes, each with small arrows indicating local velocities. Include a clear visual boundary between left and right, emphasising “Continuous Fluid” vs “Discretised Grid”. Use subtle colour gradients to indicate velocity or density magnitude. Style: clean, scientific, realistic fluid on the left, minimalistic but clear on the right, suitable for educational material. Include labels: “Continuous Fluid” (left) and “Discretised Fluid” (right). See more