Fluid Mechanics & CFD Simulators

Calculate Re from velocity, length scale, and viscosity. Visualize laminar/transitional/turbulent zones on a flow map.

Plot boundary layer thickness delta(x) and friction coefficient Cf using Blasius and 1/7-power-law. Includes transition point visualization.

Calculate friction factor f via Colebrook-White iteration. Plot the operating point on the Moody chart in real time.

Calculate the required first-layer mesh height from Reynolds number and turbulence model in real time.

Convert between Mach number and area ratio. Visualize normalized shock position and pressure ratio with graphs.

Calculate Nu and h in real time using the Churchill-Chu correlation. Supports vertical plate, horizontal plate, and cylinder.

Visualize centerline velocity decay and Gaussian radial profile for round and planar jets.

Animate standing wave modes and sound pressure distribution in pipes and rooms. Visualize resonance frequency changes due to temperature and geometry.

Real-time animation of interference and superposition of two sinusoidal waves. Visually experience in-phase, out-of-phase, beats, and standing waves. Discusses applications in ANC and ultrasonic testing.

Compare free-fall velocity and position with and without air resistance. Calculate terminal velocity from mass, drag coefficient, and cross-sectional area. Presets for skydivers, raindrops, golf balls, and more.

Calculate pressure and velocity changes due to cross-section area and height variations using Bernoulli's equation. Includes venturi tube visualization.

Calculate water depth, velocity, and energy loss before and after a hydraulic jump using the Belanger-Krieger equation. Includes flow regime classification by Froude number.

Calculate flow rate, velocity, and depth from Manning's roughness coefficient and channel cross-section. Supports rectangular, trapezoidal, and circular sections.

Iteratively solve flow distribution in multi-loop pipe networks using the Hardy-Cross method. Display flow rate and pressure loss for each pipe.

Calculate drag coefficient CD for various shapes as a function of Reynolds number. Compare drag forces for cylinders, spheres, and streamlined bodies.

Calculate flow field, lift coefficient, and drag coefficient around a cylinder as a function of Re. Visualize potential flow and streamlines.

Calculate dynamic and kinematic viscosity of fluids as a function of temperature using Sutherland's law and the Andrade equation. Compare viscosity-temperature curves for common fluids.

Calculate cooling tower approach temperature, range, and cooling efficiency using the Merkel method. Visualize the heat and water mass balance.

Find the operating point at the intersection of the pump characteristic curve and system resistance curve. Calculate performance changes for series and parallel configurations.

Calculate moist air properties from dry-bulb temperature, wet-bulb temperature, and dew point. Visualize heating, cooling, and humidification processes on the h-x chart.

Calculate buoyancy force, underwater weight, and density of objects submerged in fluid. Verify Archimedes' principle and determine floating/sinking conditions.

Calculate isentropic temperature ratio, pressure ratio, and density ratio from Mach number. Also supports normal shock wave relations.

Calculate surge pressure ΔP due to valve closure using the Joukowsky equation. Visualize pressure wave propagation speed and maximum pressure rise.

Calculate mass transfer, NTU, HTU, and tower height for packed columns using the operating line method. Basic gas absorption design tool.

Calculate the intersection (operating point) of fan P-Q characteristics and system resistance curves. Visualize performance changes for series and parallel operation.

Calculate filter flow rate, pressure drop, and filtration resistance based on Darcy's law. Supports both cake filtration and deep-bed filtration modes.

Calculate flow rate, differential pressure, and discharge coefficient for orifice, Venturi, and nozzle meters. Includes comparison of each geometry.

Analytically calculate the natural period of harbors and inlets for rectangular and trapezoidal sections. Evaluate long-wave resonance frequencies and effects on breakwater design.

Calculate maximum heat transport, vapor velocity, and pressure drop for heat pipes. Evaluate effects of wick structure and working fluid selection on performance.

Calculate required power, mixing time, and impeller Reynolds number for agitated tanks. Supports optimization of agitation performance with impeller shape and speed.

Calculate total pressure drop including straight pipe and local losses (valves, elbows, fittings) using the Darcy-Weisbach equation. Ideal for piping system design.

Calculate available NPSHa and required NPSHr and evaluate cavitation margin. Provides design guidelines for improving suction conditions.

Calculate settling velocity of spherical particles in Stokes, intermediate, and inertial regimes. Visualize sedimentation characteristics as a function of particle size, fluid viscosity, and density difference.

Calculate ship wave-making resistance, viscous resistance, and propulsion power using the Froude method. Evaluate resistance performance from Froude number and principal dimensions.

Calculate ship center of gravity, center of buoyancy, and metacentric height GM. Evaluate static restoring lever GZ curve and initial stability.

Calculate wall functions, boundary conditions, turbulence intensity, and turbulence length scale for k-ε and k-ω models. Supports CFD preprocessing initial values.

Calculate flow coefficient Cv for liquid, gas, and steam to select appropriate valves. Includes cavitation, flashing, and choked flow checks.

Calculate wave diffraction at breakwater openings using Kirchhoff approximation. Visualize harbor wave height and diffraction coefficient as functions of distance and opening width.

Calculate significant wave height, peak period, and spectral shape from JONSWAP and Pierson-Moskowitz spectra. Evaluate statistical properties of design waves.

Compute isentropic relations, normal shock, Rayleigh flow, and Fanno flow from Mach number. For nozzle design and supersonic flow analysis.

Design turbine blades using BEM theory. Interactively compute tip speed ratio, power coefficient Cp, NACA airfoils, and blade geometry.