Description of an estimation method of sheet cavitation on a model propeller considering laminar separation of boundary layer. Existence of laminar separation at the leading edge is judged using pressure distribution calculation and two-dimensional boundary layer theory. The sheet cavitation incepts when the pressure reaches below vapour pressure at the separation point. Then cavity extent in chord direction is estimated combining linear cavity theory and lift equivalent method. The estimated cavity extent agrees well with the experiment except when the cavity is at a growing condition in wake. In this case, transient effects of the separated region and cavity bubble formation seem predominant and the observed extent is sometimes much smaller than the calculated result.
An estimation method of cavity extent on a model propeller considering laminar separation
Ein Schaetzverfahren fuer das Ausmass der Kavitaet an einem Modellpropeller unter Beruecksichtigung der laminaren Trennung
Titel japanisch
Journal of the Society of Naval Architects of Japan ; 56 , 150 ; 132-139
1981
8 Seiten, 16 Bilder, 15 Quellen
Article (Journal)
Japanese
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