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title: Download ADT Publication | Optimization of 6.2:1 Pressure Ratio Centrifugal Compressor Impeller
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Free Publication

# Optimization of 6.2:1 Pressure Ratio Centrifugal Compressor Impeller by 3D Inverse Design

Written by Prof. M. Zangeneh, N. Amarel, K. Daneshkhah (Advance Design Technology) and H. Krain (DLR, Köln).

## **What's inside?**

In this work, the redesign of a centrifugal transonic compressor impeller with splitter blades by means of the three-dimensional inverse design code **TURBOdesign1** is presented. It is shown that the inverse design method could be effectively used to control the position and strength of the shock waves, eliminate flow separation and hence obtain a more uniform impeller exit flow in order to improve the aerodynamic performance. In addition, some results are presented on the comparison of stress and vibration in both impellers.

> The basic design methodology for impellers with splitter blades is outlined and is applied in a systematic way **to improve the aero/mechanical performance of a transonic 6.2:1 pressure ratio centrifugal compressor impeller**.

![Optimization of Pressure Ratio Centrifugal Compressor Impeller Cover-min](https://info.adtechnology.com/hs-fs/hubfs/Collateral%20Planning/2021/Publications/Optimization%20of%206.2%201%20Pressure%20Ratio%20Centrifugal%20Compressor%20Impeller/Optimization%20of%20Pressure%20Ratio%20Centrifugal%20Compressor%20Impeller%20Cover-min.png?width=700&name=Optimization%20of%20Pressure%20Ratio%20Centrifugal%20Compressor%20Impeller%20Cover-min.png)

### In this publication, you will:

1. **Discover** the design technics to achieve a more uniform exit flow for the inverse impeller.
2. **See** an efficient alternative for designing high performance impeller which is much stiffer with 1st natural frequency being 29% higher than the corresponding value for conventional impeller.
3. **Understand** the advantage of using a 3D Inverse Design method in this project (improvements in stage efficiency, pressure ratio...).

![download](https://info.adtechnology.com/hubfs/ADT%20Live%20Asset%20-%20Hub/images/adt-image.svg)

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