The Delft Sand, Clay & Rock Cutting Model, 2019a

Occurrence of a Wedge, Non-Cavitating.
90
φ=40º, δ=27º, No Cavitation
75
60
45
Angles (º)
30
15
0
Teta
Beta
Delta
Labda
-15
-30
-45
50 60 70 80 90 100 110 120 130 140 150
Blade Angle α (º)
© S.A.M.
Figure P-5: No cavitation, the angles θ, β, δm and λ as a function of
the blade angle α for φ=40º and δ=27º.
15.0
φ=40º, δ=27º, No Cavitation
12.5
10.0
7.5
5.0
Forces (kN)
2.5
0.0
-2.5
-5.0
Fh (Wedge)
Fv (Wedge)
Fh (No wedge)
Fv (No wedge)
-7.5
-10.0
-12.5
-15.0
50 60 70 80 90 100 110 120 130 140 150
Blade Angle α (º)
© S.A.M.
Figure P-6: No cavitation, the cutting forces as a function of
the blade angle α for φ=40º and δ=27º.
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