Flow Fundamentals Simulators

Calculate wind speed at any height. Compare log law vs power law profiles for any terrain and reference wind speed. Visualize with interactive terrain sketch.

Adjust upstream velocity, pipe diameter, and fluid density to visualize pressure distribution in a Venturi tube with diameter-ratio sensitivity and device comparison acr…

A tool for computing the cavitation number sigma, a dimensionless index of how close a flowing liquid is to vaporising.

Vary the Rayleigh number (Ra) and watch convection cell formation, development, and turbulent transition in real time

For steady laminar flow between parallel plates (top plate at speed U, bottom plate static), vary speed, gap, viscosity, and pressure gradient to see wall shear stress, …

Visualize viscosity curves & Couette flow for Newtonian and non-Newtonian fluids in real time. Explore rheology with temperature effects.

Analyze hydrodynamic journal bearings with a simulator using the Reynolds equation. Compute pressure, film thickness, and the Sommerfeld number for bearing design.

Calculate viscosity, shear stress, and Reynolds number for Newtonian and non-Newtonian fluids (power-law, Bingham plastic) in real time. Compare temperature dependence a…

Explore free vortex, forced vortex, and Rankine vortex flows. Adjust circulation Γ, core radius, and angular velocity to visualize velocity profiles, pressure distributi…

Jet Mixing links flow rate, pressure loss, and hydraulic margin in a compact simulator page, helping users choose the next calculation from the same engineering cluster.

Compute the mean free path lambda and the Knudsen number Kn = lambda / L in real time from temperature, pressure, molecular diameter and characteristic length, and autom…

Watch thermally buoyant blobs rise when heated and sink when cooled — a hypnotic, physics-accurate simulation of Archimedes' principle, thermal expansion, and natural co…

Experience SPH-based particle fluid in real time. Adjust gravity, viscosity, and container shape to intuitively explore fluid dynamics.

Calculate mass, volume & molar concentration for 2–3 fluid mixtures. Get dilution factors, flow rates, and target concentrations instantly.

Visualize 2D potential flow around a cylinder. Explore streamlines, pressure maps, and the Magnus effect with interactive simulations and Cp plots.

Real-time evaluation of the Ostwald-de Waele power law $\\tau = K\\,\\dot{\\gamma}^{n}$ for the shear stress $\\tau$, apparent viscosity $\\mu_{\\text{app}}$ and pipe-fl…

Interactive Reynolds number calculator with real-time flow regime map. Adjust velocity, characteristic length, and fluid properties to determine laminar, transitional, o…

Perform control volume analysis for converging nozzles, 90° pipe bends, and expanding ducts. Calculate flow rate, velocity, pressure, and reaction force from continuity,…

Richardson number simulator: real-time Ri = g B dT L / V^2 for stratified flow. Brunt-Vaisala frequency, mixing-limit velocity, and stability regions at Ri = 0.25 and 1.

Tank Drain Time Simulator focuses on flow rate, pressure loss, and hydraulic margin, giving a compact read on the current case and the trend that matters next.

Compute the Weber number We = rho V^2 L / gamma in real time from density rho, velocity V, characteristic length L and surface tension gamma.