💨 Air & Wind

Ocean WavesPopularProcedural ocean via GLSL shaders (Gerstner waves). Adjust wind speed and storm intensity in… Air Pollution DispersionNewA simplified Gaussian-plume dispersion model: emission rate, wind speed, stack height and… Aurora Borealis: Solar Wind & Magnetosphere InteractionNewA physically-grounded 3D aurora simulator: solar-wind particles funnel along Earth's dipole… Dust Storm (Haboob) FormationNewInteractive haboob simulation — gravity-current gust fronts, thunderstorm downdrafts and… Iceberg Drift & MeltNewInteractive iceberg drift and melt simulation — Archimedes flotation, ocean current vs wind… Insect Flight AerodynamicsNewA 3D WebGL model of a flapping insect wing pair generating lift through the leading-edge… Mangrove Coastal ProtectionNewMangrove wave attenuation simulator — compare a coastline with a mangrove root fringe… Ozone Hole FormationNewInteractive Antarctic ozone hole simulation — CFC chlorine chemistry, polar stratospheric… Reed Instrument ResonanceNewA clarinet reed is a pressure-controlled valve that self-sustains oscillation by feeding… Solar Wind & MagnetosphereNewSimulate the solar wind slamming into Earth's magnetic field: bow shock formation,… Termite Mound ThermoregulationNewA 3D cutaway of a fungus-farming termite mound where buoyancy-driven convection and wind… Volcanic Ash Dispersal ModelNewSimulate a volcanic ash plume rising from an eruption column and spreading downwind at… Blast Wave — Shockwave & OverpressureNewA point-source blast wave in a uniform atmosphere, modelled with Sedov-Taylor scaling for… Debye-Hückel Limiting Law — Ionic Strength & Activity CoefficientsNewWatch an ion's counter-ion atmosphere thicken and compress as electrolyte concentration… Comet Tail FormationNewWatch a comet's curved dust tail and straight ion tail form and grow as it swings around the… Wind-Driven Seed DispersalNewSamara 'helicopter' seeds and dandelion pappus parachutes drift under turbulent wind;… 3D Curl Noise Flow FieldNewThousands of particles follow a 3D curl noise velocity field rendered on canvas. Curl noise… Cosmic Ray Air Shower — Particle CascadeNewWatch a cosmic ray proton cascade into thousands of secondary particles (pions, muons,… Meteor Entry & AblationNewA meteoroid enters the atmosphere: drag, ablation, and luminous efficiency govern the light… Neurovascular Coupling & BOLD SignalNewNeural activity increases blood flow via nitric oxide. Balloon model: dv/dt = (f_in −… Taylor-Green Vortex DecayNewSimulate the Taylor-Green vortex — a canonical turbulence benchmark. Watch the initial… Rayleigh-Taylor Instability — Heavy Over LightNewWhen a dense fluid sits atop a lighter one, the interface is unstable: perturbations grow… Taylor-Couette Flow — Rotating Cylinder VorticesNewFluid between two rotating cylinders becomes unstable above a critical Taylor number,… Paper AirplaneNewThrow a paper airplane and watch it glide with real aerodynamics. Lift, drag and gravity act… Fluid InstabilityNewSet velocity shear, density ratio and surface tension to watch Rayleigh-Taylor and… Wind ErosionNewSet wind friction velocity, grain size and soil moisture, then watch sand transport erupt… Bernoulli's Principle — Airfoil Lift & FlowNewAirfoil streamlines bend as you raise angle of attack and airspeed — watch the pressure… Exoplanet AtmospheresNewExoplanet transmission spectroscopy, biosignatures, JWST data and habitability zone analysis. Planet AtmospheresNewPlanetary atmospheres: scale height, greenhouse effect, escape velocity comparing Venus,… Projectile Motion — Range, Angle & Air ResistanceNewInteractive projectile motion simulator: vary launch angle, initial speed and drag… Cycling Aerodynamics — Drag, Drafting and PowerNewCalculate aerodynamic drag on a cyclist using CdA. Model drafting behind riders, power… El Niño – Southern OscillationNewWatch the Pacific climate flip between El Niño and La Niña with a delayed-oscillator model.… Supersonic FlowNewWatch the Mach cone (μ=arcsin 1/M) and oblique/bow shocks form around a body as Mach number… Wind FarmNewLay out a turbine array and see how downwind wakes (Jensen/Park model) cut output. Each… Wind TunnelNewPotential-flow streamlines over an aerofoil, cylinder, sphere or flat plate with pressure… Drag CoefficientNewSee how a body's shape and Reynolds number set aerodynamic drag. Watch flow separate behind… Ice Halos & Sun DogsNewMonte-Carlo atmospheric optics: refract sunlight through hexagonal ice crystals and watch… Projectile MotionNewFire a projectile and explore how launch angle, speed, air resistance, and gravity affect… Sand DuneNewBlow wind across a sand bed and watch grains saltate, dunes migrate downwind and vegetation… Fire & SmokeCellular automaton with fire, smoke, ember, ash, wood, water and wall cells. Wind direction,… Lévy FlightSimulate Lévy flights: tune the stability exponent α from Brownian motion (α=2) to rare long… Asteroid DeflectionKinetic impactor planetary defense simulation: apply Δv to an Earth-crossing asteroid and… Laminar to Turbulent TransitionRaise the Reynolds number and watch a dye filament in a pipe go from a clean straight thread… NACA AirfoilNACA 4-digit airfoil generator with thin airfoil theory: Cl, Cd, L/D, Cp distribution and… Ocean AcidificationReal carbonate chemistry — pH, aragonite saturation and coral bleaching as atmospheric CO₂… Jet StreamRossby waves, polar vortex, subtropical jet and atmospheric blocking patterns. Moon LandingApollo-style lunar module descent with real Isp, Tsiolkovsky mass-flow and Moon gravity 1.62… Orbital ManeuversCompute Δv budgets for Hohmann transfers between Earth orbits. Animated spacecraft… Fluid Vorticity & Kelvin–Helmholtz Instability2D vortex sheet dynamics and the Kelvin–Helmholtz instability. N point vortices interact via… Aurora Borealis — Charged Particles in Earth's MagnetosphereFire solar wind particles at Earth's magnetosphere and follow the Lorentz force spiralling… Flight Simulator — Lift, Drag, Thrust & Pitch2D flight simulator with realistic aerodynamics: lift, drag, thrust and gravity. Control… Ion Thruster — Electric Propulsion & Mission ΔVAn ion beam accelerates out the back — compare its thrust and Isp against chemical rockets… Kármán Line — Where Does Space Begin?Interactive simulation of the Kármán Line at 100 km altitude. Explore atmospheric density,… Parachute Physics — Terminal Velocity & DragSimulate parachute descent: freefall, canopy deployment, and terminal velocity. Control… Rocket Engine — de Laval Nozzle & ThrustFuel burns in the chamber and expands through a de Laval nozzle — tune chamber pressure,… Solar Wind & Earth's Magnetosphere — Bow Shock, Magnetopause, AuroraParticle simulation of the solar wind interacting with Earth's magnetic dipole. Bow shock,… Two-Stage Rocket — Tsiolkovsky Equation & Stage SeparationSimulate a two-stage rocket launch. Tune thrust, propellant mass and drag for each stage.… Wind Turbine SimulatorTune wind speed, blade pitch and rotor diameter and watch power output, tip-speed ratio and… Lightning Bolt GeneratorGrow fractal electric discharge paths using the Dielectric Breakdown Model (DBM). Adjust… TessellationsInteractive tessellation explorer. Regular tilings (triangular, square, hexagonal) and… Solar SailSimulate a solar sail spacecraft driven by photon radiation pressure. RK4 orbital… Blood Flow & Vessel MechanicsA pulsatile Poiseuille flow model: adjust vessel radius, stenosis, pressure gradient and… Cyclone & Coriolis Effect2D particle simulation on a rotating frame. Coriolis force deflects particles into CCW… Rayleigh Scattering — Why the Sky is BlueSimulate atmospheric Rayleigh scattering (I ∝ 1/λ⁴). Watch the sky shift from deep blue at… Atmospheric Re-entryCapsule descends from LEO at 7 800 m/s. Entry angle determines survival: too shallow and it… Carbon Cycle4-box carbon cycle: atmosphere ↔ biosphere ↔ ocean surface ↔ deep ocean. Ocean uptake ∝… Magnus Effect — Ball SpinSpinning sports ball with Newton drag + Magnus force (F=Km·ω×v). Three simultaneous… Rocket Launch (Tsiolkovsky)Two-stage rocket simulation with live Tsiolkovsky Δv budget. Adjust specific impulse,… Meteor ShowerWatch a stunning meteor shower with realistic glowing trails, draggable radiant point, and… Random WalkGaussian, Lévy flight and lattice walkers diffuse from the origin — watch the √t… BalloonsColourful helium balloons float upward. Click to pop with confetti. Pop mode, free float or… Rain & PuddlesFalling raindrops, ripple rings on puddles, dynamic clouds and optional rainbow. Four… Fractal TreeChange branch angle, depth and ratio to grow a recursive tree, then hit Wind to sway it in a… Rainbow & OpticsAtmospheric light scattering — rainbow formation, Rayleigh scattering, interactive sun position. Interactive OceanGLSL: foam, moonlight reflection, Fresnel effect. Presets — calm, storm, ripple, tsunami.… Cloth SimulationPhysical cloth on a spring-mass model with wind and sphere collision. Drag points with mouse. Atmospheric Optics — Rainbows & HalosGeometric optics in water droplets and ice crystals producing rainbows and 22°/46° halos. Premixed Flame Front — PropagationA premixed flame front propagating via reaction-diffusion with Arrhenius kinetics. Aerofoil & Lift — NACA Wing AerodynamicsSet angle of attack, camber and thickness on a NACA aerofoil and watch streamlines, pressure… Atmospheric FrontsCold, warm, occluded and stationary fronts on animated synoptic map with vertical… Atmospheric OpticsFour scenes: Rayleigh sky scattering with sunset colours, rainbow arc physics, 22°… Tornado — Vortex SimulationThousands of particles spiral upward in a helical vortex funnel. Control intensity, width,…