Overview

• specific speed range: nq ~10 ... 120 (Ns ~500 ... 6200)
• Calculation of main dimensions: hub and suction (eye) diameter, impeller diameter, inlet and outlet width
• Shrouded or unshrouded impeller with any leading edge positioning
• Any meridional contour (Bezier splines or straight line+arc) with checking of curvature and cross section progression, static moment
• Blade angle calculation with estimation of decreased output
• Simple 2D (prismatic or circular) or 3D free form blades with checking of blade angle progression
• Blade thickness distribution and rounding of blade leading edge (Bezier splines, ellipse, simple)
• 3D representation

Detailed information

Stepwise impeller design: from input of design point to the 3D model:

 Pump impellers

 Ventilator impellers

Examples of designed pump impellers

(Enlarge by clicking)

nq = 20

nq = 50

nq = 65

nq = 92

Ns = 1000

Ns = 2600

Ns = 3400

Ns = 4700

Examples of designed ventilator impellers

(Enlarge by clicking)

nq = 20

nq = 30

nq = 55

nq = 115

Ns = 1000

Ns = 1500

Ns = 2800

Ns = 5900