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Maschinenbau-Forum • kritische Reynolds-Zahl Kreisring
Seite 1 von 1

kritische Reynolds-Zahl Kreisring

BeitragVerfasst: Do 17. Okt 2013, 10:14
von JoFi85
Hallo,
ich habe ein Rohr mit Kreisring-Querschnitt durch das Öl fließen soll. Das Rohr ist ca. 3m lang.
Ich weiß das die kritische Reynolds-Zahl für kreisrunde Rohre bei 2320 liegt.
Ist das Bei Rohren mir Kreisring-Querschnitt genauso? Ich habe nämlich gelesen das bei Durchflüssen durch konzentrische Spalte die kritische Reynolds-Zahl bei 1100-1200 liegt. Habe auch ein Bild eingefügt, indem man sieht wie der Querschnitt ist.
Bin mir nicht sicher welchen Wert ich annehmen muss.

Vielen Dank
Mit freundlichen Grüßen

JoFi85

Re: kritische Reynolds-Zahl Kreisring

BeitragVerfasst: Mi 3. Dez 2014, 12:53
von alieen
Ist das Bei Rohren mir Kreisring-Querschnitt genauso? Ich habe nämlich gelesen das bei Durchflüssen durch konzentrische Spalte die kritische Reynolds-Zahl bei 1100-1200 liegt. Habe auch ein Bild eingefügt, indem man sieht wie der Querschnitt ist.

Re: kritische Reynolds-Zahl Kreisring

BeitragVerfasst: Mo 4. Jul 2016, 19:12
von tonny
War doch richtig gut