fˈɪzɪkli, ðə tˈɜːbjʊləns kᵻnˈɛɾɪk ˈɛnɚdʒi ɪz kˈæɹɪktɚɹˌaɪzd baɪ mˈɛʒɚd ɹˈuːtmˈiːnskwˈɛɹ ˌɑːɹɹˌɛmˈɛs vəlˈɑːsᵻɾi flˌʌktʃuːˈeɪʃənz.
Physically, the turbulence kinetic energy is characterised by measured root-mean-square (RMS) velocity fluctuations.