Blade Row Interaction


Blade row interaction effects can extract a heavy toll on turbomachinery performance and durability.  As a turbomachinery designer, you know that these effects are only going to become more pronounced as you drive towards smaller, more efficient designs.  

This demands CFD that's up to the task.  CFD that allows you to peer into the fourth dimension—time—to characterize and counter adverse secondary flow between blade rows.  CFD that allows you to do so across a wide range of geometries and flow regimes with high fidelity. And CFD that allows you to conduct these studies inside tight design windows.

Here's how we can help:

Time resolved capture of blade row interaction effects

Tighter axial gaps produce stronger blade row interactions that can lead to high cycle fatigue.  The ADS solver Leo allows you to gain time resolved flow insights through multistage unsteady analysis to understand and counter these effects.  Conduct sector, scaled sector or full wheel unsteady calculations to achieve the proper balance of accuracy and turnaround time. 

Structured/unstructured mesh support for maximum analysis flexibility

Rooted in decades of aerospace-class turbomachinery application, the ADS solver Leo provides maximum analysis flexibility by supporting both structured and unstructured mesh input.  For most applications, leverage the ADS structured mesh generator Wand to generate a quality mesh for multistage analysis.  Supplement it with cavity, bleed or cooling flow models supported in Code Leo.  

Design time application

ADS makes multistage unsteady analysis practical, delivering order of magnitude speedups that allow you to better anticipate and counter adverse blade row interaction effects during design. 

Easy integration into design optimization loop

Converge quickly to a final design candidate by integrating these capabilities into a design optimization loop.  All ADS CFD components can be easily integrated into your design system through the use of text-based setup files and command line executables. 

Makes sense.  Now what?

It's easy--take us for a test drive and see for yourself.  Or if you need more information, check out some of our resources below:

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A technical paper describing how impeller-diffuser interaction effects were studied using ADS CFD to improve centrifugal compressor performance
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An article on how unsteady analysis is being deployed during design for improved performance and durability
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An article on scaling blade row passages for multistage unsteady analysis
A tutorial on setting up a multistage unsteady simulation in ADS CFD