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Kármán Vortex Streetمقبول2D Lattice Boltzmann (D2Q9, BGK) simulation of vortex shedding behind a cylinder. Adjustable… Aerofoil & Lift — NACA Wing AerodynamicsSet angle of attack, camber and thickness on a NACA aerofoil and watch streamlines, pressure… Lattice-Boltzmann FlowInteractive Lattice-Boltzmann D2Q9 fluid dynamics simulator. Draw obstacles, watch vortices… Bernoulli PrincipleNewInteractive Venturi tube: watch fluid speed up through a constriction as pressure drops.… Real-Time Fluid Simulation — Navier–Stokes SolverInject vortex, shear or plume presets into Jos Stam's stable-fluids solver and tune… Fluid Vorticity & Kelvin–Helmholtz Instability2D vortex sheet dynamics and the Kelvin–Helmholtz instability. N point vortices interact via… Pipe Flow ProfilesSet viscosity, pressure gradient and pipe radius to see the parabolic Hagen-Poiseuille… Laminar to Turbulent TransitionRaise the Reynolds number and watch a dye filament in a pipe go from a clean straight thread… Blasius Boundary LayerSlide along a flat plate to watch the Blasius laminar boundary layer thicken, and read the… SPH Dam BreakSimulate a dam break using Smoothed Particle Hydrodynamics (SPH). Watch a column of water… Shallow Water EquationsSimulate dam-break, sloshing and tidal waves with a 1D shallow-water solver — watch the… Ripple TankNewA 2D ripple tank solving the wave equation ∂²h/∂t²=c²∇²h: point and plane sources,… Bernoulli's Principle — Airfoil Lift & FlowNewAirfoil streamlines bend as you raise angle of attack and airspeed — watch the pressure… Fluid Pressure — Pascal's Law & HydrostaticsNewAdjust fluid density and container geometry to see pressure grow with depth (P = ρgh),… Fluid Lattice-BoltzmannNewLattice Boltzmann method (D2Q9) simulating Karman vortex street and computational fluid… Stokes FlowNewDrag a sphere through creeping flow at low Reynolds number and watch Stokes-flow… Drag CoefficientNewSee how a body's shape and Reynolds number set aerodynamic drag. Watch flow separate behind… Capillary ActionNewSurface tension pulls liquid up narrow tubes by Jurin's law h = 2γcosθ/(ρgr). Watch the… Ocean CurrentNewDrag temperature and salinity sliders to set polar-vs-tropical density contrast and watch… Fluid InstabilityNewSet velocity shear, density ratio and surface tension to watch Rayleigh-Taylor and… Foam Drainage — Plateau Borders & Laplace PressureNewLiquid drains from foam through Plateau border channels. Laplace pressure differences drive… Rayleigh-Bénard Convection — Thermal CellsNewHeat a fluid layer from below: above a critical Rayleigh number, ordered convection rolls… Taylor-Couette Flow — Rotating Cylinder VorticesNewFluid between two rotating cylinders becomes unstable above a critical Taylor number,… Rayleigh-Taylor Instability — Heavy Over LightNewWhen a dense fluid sits atop a lighter one, the interface is unstable: perturbations grow… Saffman-Taylor — Viscous FingeringNewInject a low-viscosity fluid into a high-viscosity one in a Hele-Shaw cell: the interface… Vortex Ring DynamicsNewWatch a vortex ring self-propel through fluid. Biot-Savart law governs the induced velocity… Taylor-Green Vortex DecayNewSimulate the Taylor-Green vortex — a canonical turbulence benchmark. Watch the initial… Rising Bubble in Viscous FluidNewA gas bubble rises through a viscous liquid driven by buoyancy. Stokes drag, Morton number,… Kelvin Ship Wake — Wave InterferenceDrag ship speed and wave-source count to build a Kelvin wake — transverse and diverging…