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🧪 Fluid Flow Dynamics Simulation

Interactive combined Couette-Poiseuille channel-flow simulator: drag the top plate, tune the pressure gradient and fluid viscosity, and watch the velocity profile morph between linear drag-driven shear and parabolic pressure-driven flow, with live wall shear stress and Reynolds number.

Fluid Dynamics & Aerodynamics2DModerate60 FPS📱 Mobile-adapted💧 Water 💨 Air & Wind

This simulator visualises how a real fluid responds when it is squeezed between two plates and pushed by two different forces at once: a moving wall dragging it along by viscous shear, and a pressure gradient shoving it end to end. Dragging the top-plate-velocity and pressure-gradient sliders morphs the classic linear Couette profile into the classic parabolic Poiseuille profile and every combined shape in between, while thousands of colour-coded tracer particles stream through a 3D channel at exactly the local velocity u(y) the Navier-Stokes solution predicts. Live readouts track the mean velocity, the channel Reynolds number, the wall shear stress at both plates and the volumetric flow rate, and a fluid-preset row lets you feel how honey, motor oil, water and air each reshape the same pressure and drag into very different flows.

⚙ Under the hood

This simulation demonstrates the principles of fluid dynamics, showcasing how fluids like water or air respond to forces and interactions. It illustrates concepts such as pressure gradients, viscosity, and turbulence, fundamental to understanding fluid behavior.

Fluid DynamicsViscosityTurbulence

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install