Fluids, heat transfer and mechanical engineering

Conduction and convection fields, vortex dynamics, velocimetry, turbomachinery and the design charts engineers still size equipment from. Vector fields need thinning before they are legible, conjugate heat problems need a colour scale that is honest about sign, and the classical design charts – Moody, pump curves, airfoil polars – are log-log or twin-axis figures by construction.

Steady-state conduction, with isotherms

Steady-state conduction, with isotherms

Heat exchanger tube bundle

Heat exchanger tube bundle

Infrared thermography of a board

Infrared thermography of a board

Vorticity with velocity vectors

Vorticity with velocity vectors

Annular flow on a curvilinear grid

Annular flow on a curvilinear grid

PIV velocity field behind a cylinder

PIV velocity field behind a cylinder

Wind turbine wake deficit

Wind turbine wake deficit

Moody diagram

Moody diagram

Pump curve and system curve

Pump curve and system curve

Boundary-layer profiles in wall units

Boundary-layer profiles in wall units

Airfoil polars at three Reynolds numbers

Airfoil polars at three Reynolds numbers

Stokes’ first problem: viscous diffusion from an impulsively started plate

Stokes' first problem: viscous diffusion from an impulsively started plate

The decaying Taylor-Green vortex: an exact solution, animated

The decaying Taylor-Green vortex: an exact solution, animated