Kaplan / High-BAR Propeller

Open-water analysis for tip-tilted, high blade-area Kaplan propellers (e.g. Kaplan37) plus a folding NSC energy model.

Inputs

Diameter D (m)

Pitch P (m)

Blade area ratio EAR

Blades Z

Rotation n (rps)

Advance coeff J

Tip-tilted (skew/curl)

Skew root (°)

Skew tip (°)

Rake root (°, +aft)

Rake tip (°, +aft)

Water density (kg/m³)

Folding NSC (sailing)

Pose

Sailing speed V_a (m/s)

Results

K_T

—

K_Q

—

η_o

—

P_D

—

Skew K_T gain

—

NSC pose

—

NSC drag (W)

—

Absorbed flux

—

Skew / rake radial distribution

Skew sensitivity (fixed EAR·Z)

K_T @ J

—

η_o @ J

—

Δη_o (0→45°)

—

Rake sensitivity (fixed EAR·Z)

K_T @ J

—

η_o @ J

—

Δη_o (0→20°)

—

Skew × rake joint sensitivity (η_o)

Max η_o

—

At skew/rake

—

η_o @ J

—

Skew × rake × η_o surface (move to probe)

Skew × rake contour (top view, η_o)