EROSION AND

CAVITATION

DANSIS SeminarGrundfos, Bjerringbro

Wednesday May 22nd 2019, 9.30 - 16.00

09:30 Registration and breakfast

09:55 Welcome

Nicholas Engen Pedersen, Hydraulic Design and Simulations, Grundfos, Denmark

10:05 Experimental investigation of cavitation and erosion at HSVA - the Hamburg Ship Model Basin

Christian Johannsen, Hamburgische Schiffbau-Versuchsanstalt, Germany

10:45 Coffee Break

11:05 Modelling erosion in complex geometries

Alejandro Lopez Garcia, University of Deusto, Spain

11:45 Prediction of erosion for oil and gas well equipment using CFD modelling

Casper Schytte Hemmingsen, Lloyd's Register, Denmark

12:15 Lunch

Erosion and Cavitation

PROGRAM – morning:

Erosion and Cavitation

PROGRAM – afternoon:

12:45

13:10

Group 1: Tour of Grundfos Additive Manufacturing Lab

Group 2: Tour of Grundfos Additive Manufacturing Lab

14:00 Hybrid-Multiphase modelling for solid management and erosion in real world applicationsVirginia Fratalocchi, Siemens Digital Industries

14:30 Coffee Break

14:50 Cavitation simulation on ship propellers with erosion safety indexKeun Woo Shin, MAN Energy Solutions, Denmark

15:20 Unsteady loads due to cavitation in flow systems: Using 1D and 3D CFD to shed light on the phenomenon

Morten Kjeldsen, Flow Design Bureau AS, NorwayLove Håkansson, EDR & Medeso AS, Norway

15:50 Closing remarksDANSIS Chairman Knud Erik Meyer, DTU, Denmark

16.00 End

GRUNDFOS IN BRIEF Company

Founded in 1945 in Denmark

16 million pumps per year

Turnover of EUR 3.0+ billion

18.000+ employees worldwide

8+ development sites

15+ production sites

50+ sales companies

Main products

Circulator pumps

Submersible pumps

Industrial pumps

Waste Water pumps

Sanitary pumps

Disinfection pumps

Mixers and flow makers

Electrical motors

Controls & Monitoring

GRUNDFOS PRODUCT RANGE

03-06-2019

Strictly Confidential

6

03-06-2019

Strictly Confidential

7

Digital Development Movie

Movie Link

Grundfos wants to apply simulations in product

concept phase, in designphase and for verification

of new products in a virtual environment.

SIMULATION DRIVEN DEVELOPMENT

Simulation capabilities at Grundfos

Optimization & Automation

Controls Multiphysics

Fluid Dynamics Structural Mechanics Electronics

Chemistry Production

Electro-magneticsMaterials

Flow simulations for obtaining world-class energy efficiency

Simulation provides accurate insight of flow/velocity, pressure and hydraulic losses.

UNDERSTANDING COMPLEX FLUID-FLOW IN PUMPS

Fully automated design process and high-end optimization techniques ensures world class efficiency and produceability.

ENERGY EFFICIENCY VS MANUFACTURING

Flow simulations for obtaining world-class energy efficiency

Flow simulations are used by the hydraulic designer to predict and reduce forces and vibrations resulting from e.g. one-channel impellers in waste-water pumps

HYDRAULIC FORCES AND VIBRATIONS

Flow simulations for predicting forces and vibrations

Flow simulations for predicting cavitation

Baseline design Improved design

Flow simulations are used in the hydraulic design process to minimize cavitation and enhance low-NPSH performance

CAVITATION PREDICTION

Flow simulations are used to predict sand wear on hydraulic components. This allows the hydraulic designer to optimize the geometry and maximize life time

SAND WEAR PREDICTION

Flow simulations for predicting sand wear in waste-water pumps

Flow simulations are used to predict sand wear on hydraulic components. This allows the hydraulic designer to optimize the geometry and maximize life time

SAND WEAR PREDICTION

Flow simulations for predicting sand wear

Grundfos wants to apply simulations in product

concept phase, in designphase and for verification

of new products in a virtual environment.

SIMULATION DRIVEN DEVELOPMENT

SIMULATION TYPES

Concept Simulations Used to compare and contrast, sometimes radically, different concepts. The simulations can be used to lay out initial requirements and constraints for the design phase.

Design Simulations Used to drive detailed design decisions and ensure that the design conforms to requirements and constraints.

Verification Simulations Used to verify that designs conform to requirements.

Erosion and Cavitation

PROGRAM – afternoon:

12:45

13:10

Group 1: Tour of Grundfos Additive Manufacturing Lab

Group 2: Tour of Grundfos Additive Manufacturing Lab

14:00 Hybrid-Multiphase modelling for solid management and erosion in real world applicationsVirginia Fratalocchi, Siemens Digital Industries

14:30 Coffee Break

14:50 Cavitation simulation on ship propellers with erosion safety indexKeun Woo Shin, MAN Energy Solutions, Denmark

15:20 Unsteady loads due to cavitation in flow systems: Using 1D and 3D CFD to shed light on the phenomenon

Morten Kjeldsen, Flow Design Bureau AS, NorwayLove Håkansson, EDR & Medeso AS, Norway

15:50 Closing remarksDANSIS Chairman Knud Erik Meyer, DTU, Denmark

16.00 End

09:30 Registration and breakfast

09:55 Welcome

Nicholas Engen Pedersen, Hydraulic Design and Simulations, Grundfos, Denmark

10:05 Experimental investigation of cavitation and erosion at HSVA - the Hamburg Ship Model Basin

Christian Johannsen, Hamburgische Schiffbau-Versuchsanstalt, Germany

10:45 Coffee Break

11:05 Modelling erosion in complex geometries

Alejandro Lopez Garcia, University of Deusto, Spain

11:45 Prediction of erosion for oil and gas well equipment using CFD modelling

Casper Schytte Hemmingsen, Lloyd's Register, Denmark

12:15 Lunch

Erosion and Cavitation

PROGRAM – morning:

Erosion and Cavitation

PROGRAM – afternoon:

12:45

13:10

Group 1: Tour of Grundfos Additive Manufacturing Lab

Group 2: Tour of Grundfos Additive Manufacturing Lab

14:00 Hybrid-Multiphase modelling for solid management and erosion in real world applicationsVirginia Fratalocchi, Siemens Digital Industries

14:30 Coffee Break

14:50 Cavitation simulation on ship propellers with erosion safety indexKeun Woo Shin, MAN Energy Solutions, Denmark

15:20 Unsteady loads due to cavitation in flow systems: Using 1D and 3D CFD to shed light on the phenomenon

Morten Kjeldsen, Flow Design Bureau AS, NorwayLove Håkansson, EDR & Medeso AS, Norway

15:50 Closing remarksDANSIS Chairman Knud Erik Meyer, DTU, Denmark

16.00 End