Film temperature
Buckingham-Reiner equation (Darcy friction factor for turbulent flow)
Heat transfer rate for a pipe with a fluid flowing inside.
Closed magnetic circuit (magnetic field)
Coefficient Cw(T,P) - used in UNESCO equation
Magnetic flux through a solenoid
Spirograph (X-coordinate of the traiectory of the pen-hole in the inner disk of a Spirograph)
Drag coefficient for a spherical object in creeping flow
Stanton Number
Apsis - Apoapsis minimum speed