Physik : Hydrodynamik am Auto

Physik Hydrodynamik am Auto

Aquaplaning ist gefürchtet, weil der Fahrer dabei die Kontrolle über sein Auto verlieren kann. Spannend sind dabei die physikalischen Zusammenhänge dieses Vorgangs.

Dr. Manfred Scholz

01.07.2022

Das Design des Reifenprofils kann für manche Zeitgenossen durchaus ein kaufentscheidender Eyecatcher sein, viel wichtiger aber sind die Eigenschaften des Profils. Denn auf regennasser Straße nehmen die vom Reifen auf die Fahrbahn übertragbaren Kräfte rapide ab. Neben den Gefahren durch Aquaplaning nimmt sich der Übergangsbereich, wenn es zu regnen beginnt: Wasser und Straßenschmutz verbinden sich, nach wochenlanger Trockenheit, zu einer schmierseifenartigen Mischung.

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Vbhajzq Ofdoep p =250 ck

V_kaykj = 90 • 250 • 2 : 3600 12,5 a/b

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