Turkish Hartmann sayısı Cited by user Simple-engineer on 25 May 2024 Hartmann sayısı (Ha), ilk olarak Danimarkalı Julius Hartmann (1881 – 1951) tarafından tanıtılan, elektromanyetik kuvvetin viskoz kuvvete oranıdır.
German Hartmann-Zahl Cited by user Leyo on 20 Oct 2023 {{Infobox Physikalische Kennzahl * Name = * Formelzeichen = ) ist eine dimensionslose Kennzahl von Fluiden, das heißt von Gasen oder Flüssigkeiten.
English Hartmann number Cited by user TheTechnician27 on 17 May 2020 The Hartmann number (Ha) is the ratio of electromagnetic force to the viscous force first introduced by Julius Hartmann.