| Kelvin's minimum-energy theorem [`kel·vǝnz ¦min·ǝ·mǝm `en·ǝr·jē ´thir·ǝm] FLUID MECHANICS The theorem that the irrotational motion of an incompressible, inviscid fluid occupying a simply connected region has less kinetic energy than any other fluid motion consistent with the boundary condition of zero relative velocity normal to the boundaries of the region. |