7/14/2019 Cfturbo Volutes En

http://slidepdf.com/reader/full/cfturbo-volutes-en 1/2

1. Volute inlet– Impeller definition by manual input or import

from a CFturbo-impeller file

– Adaptation of design flow rate if specified

– Definition of inlet width and inlet diameter of 

the volute

VOLUTES – MAJOR DESIGN STEPS

2. Radial diffuser design– Import and adapt impeller parameters

– Free design of widths and diameter relations

– Conventional or pitch-type non-bladed diffuser

– In-compressible or compressible streamline

– Computation of velocity components

CFturbo® 

3. Volute cross-section shapes– Rectangular, trapezoid or arc

– Various free-form geometries

– Asymmetric or symmetric

VOLUTE DESIGN SOFTWARE FOR PUMPS, VENTILATORS, COMPRESSORS AND TURBINES

7/14/2019 Cfturbo Volutes En

http://slidepdf.com/reader/full/cfturbo-volutes-en 2/2

7. Data export– Export of points, curves and

surfaces

– Neutral formats like IGES, STEP,

DXF supported

– Direct interfaces to major

CAD/CAE/CFD-systems

– Special export formats available

on customer request

4.Pipe diffuser modeling– Tangential or radial direction

– Round or rectangular end cross section

– Free-form modeling

– Diffuser length

6.3D-view– Dynamic 3D-representation

(rotate, move, zoom)

– Partial views

– Cutting plane

– Assembly view

VOLUTE DESIGN SOFTWARE FOR PUMPS, VENTILATORS, COMPRESSORS AND TURBINES

5. Volute shape andcutwater design

– Definition of start angle and

wrap angle

– Design by Pfleiderer, Stepanoff 

or own rules

– Cut-water modeling

      C      F      T_

      E_

      V      O      L_

      E      N_

      0      3   -      2      0      1      0

CFturbo® Software & Engineering GmbH

Unterer Kreuzweg 1 · D- 01097 Dresden, Germany Friedrichstrasse 20 · D- 80801 Munich, Germany www.cfturbo.com

Phone +49 351 - 40 79 04 - 79 Phone +49 89 - 189 41 45 - 0 sales@cfturbo.com

Fax +49 351 - 40 79 04 - 80 Fax +49 89 - 189 41 45 - 20