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Blade Design

Blade Design

Without any doubt, the blades are the central component of any turbomachine. They transfer energy between a rotating shaft and a fluid, and depending on whether the turbomachine in question is a turbine, a compressor, a pump, a fan, or a propeller, they either extract energy from or impart energy to a continuously moving stream of fluid. Depending on the application, blade designs come in a large variety of shapes, which are typically defined by their cross-section and how it changes in spanwise direction. These properties largely determine the turbomachinery’s performance and can encompass rather large design spaces, which can only reasonably be inspected with automated workflows.

CAESES’ Blade Design Capabilities

CAESES® is a dedicated CAD and automation environment for exploring and optimizing complex and performance-critical geometries (see also this overview on turbomachinery applications). In particular, it brings along several key capabilities for designing state-of-the-art turbomachinery blade geometries:

  • Complete parametric blade modeling capabilities for radial, axial, and mixed flow rotors and stators.
Complete parametric blade modeling
  • Angle and shape preserving transformations for axial machine airfoil modeling.
Airfoil modeling
  • Flexible control of blade, wrap angle and thickness distributions for radial impellers.
Meridional Contours, camber and thickness distributions for blade design with CAESES
  • High level of customization, i.e., no black box models and full freedom to set up user-defined workflows.
  • Control of the blade shape via discrete parametric cross sections, continuous control via radial parameter distribution functions, or customized modeling approaches, e.g., for radially fibered or flank milled blades.
  • High robustness and flexibility of parametric models for automated design studies and optimization.
Flexible turbine blade design variation
  • Comprehensive tuning possibilities of shape details like root fillets, scalloping, leading edges, and blade tips.
  • Consideration of manufacturing constraints (e.g., flank milling, casting, additive manufacturing).
Manufacturing constraints for blade design

Learn More

Impeller Design with CAESES – Do it yourself!

1. Test the online demo model below.

2. Download CAESES®, register for a trial license, and open the impeller sample file downloaded in the previous step.

3. Watch the corresponding video for explanations.

4. Create a geometry from scratch with the impeller modeling tutorial in CAESES®.

CENTRIFUGAL PUMP


This is a demo of a fully-parametric centrifugal pump impeller. The final geometry can be downloaded as a STEP file that includes a flow domain or a solid domain. Also, you can download the CAESES project file.

LIVE PREVIEW

Case Studies and Blog Posts for Blade Design

Centrifugal Water Pump Design
Centrifugal Water Pump Design

Centrifugal pumps are commonly used in industrial and residential applications due to their relatively simple design, manufacturing, and ease-of-maintenance. A centrifugal water pump was designed making full use the capabilities of CAESES in the scope of an internship project.

Centrifugal Water Pump Design
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Centrifugal Water Pump Design
Centrifugal Water Pump Design
Turbine Blade Design with Ansys CFD
Turbine Blade Design with Ansys CFD
Turbocharger Turbine Blade Optimization
Turbocharger Turbine Blade Optimization
Design of a Turbopump Inducer
Design of a Turbopump Inducer
sCO2 Turbine Blade Design
sCO2 Turbine Blade Design
Gas Turbine Blade Design at Siemens
Gas Turbine Blade Design at Siemens
Parametric Impeller Design
Parametric Impeller Design
Blade Design Video
Blade Design Video
Axial Blade Design
Axial Blade Design
Asymmetric Profiles for Impeller Design
Asymmetric Profiles for Impeller Design
GeomTurbo Export for Blade Designs
GeomTurbo Export for Blade Designs
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Questions?

Please do not hesitate to get in touch with us if you have questions in the context of your specific application. We look forward to discussing it together with you!