flux
measure of the flow of something through a surface, in some cases per surface area
flux
surface integral or line integral in a vector field
radiation stress
depth-integrated excess momentum flux caused by the presence of the surface gravity waves, which is exerted on the mean flow
energy current
flow of energy defined by the Poynting vector (E×H), analogous to electric current (flow of electric charge)
magnetic flux
surface integral of the magnetic flux density
electric flux
surface integral of the electric flux density; measured in coulombs
energy flux
rate of transfer of energy through a surface