Products | Design

Meanline & detailed turbomachinery design

The strong partnership between NUMECA International, with its Flow Integrated Numerical Environment, and CONCEPTS NREC with its Agile Engineering Design System, gave rise to the fastest and most accurate CFD suite for Turbomachinery design on the market today.

Concepts NREC’s Computer-Aided Engineering (CAE) modules enable engineers to perform meanline design optimisation for all types of rotating machinery.

These modules each have a unique Design Wizard that leads the user through all the necessary steps for design, analysis and data reduction. The meanline design can then easily be sent to AxCent® for further blade design and fluid dynamic analysis.

Application-specific modules for radial compressors, axial turbines & compressors, pumps, and radial turbines offer a variety of features, including:

  • Modeling – Two-Elements-in-Series (TEIS) rotor diffusion modeling, two-zone loss modeling, single-zone rotor loss modeling, disk friction, exit mixing, etc.
  • Integrated Performance Map Plotting
  • Axial View with Velocity Triangles
  • Multistage Capability
  • Calculation of real fluid thermodynamics
  • Object Linking and Embedding (OLE) automation

Preliminary design module for multistage axial compressors and turbines

Key Features

  • Estimate of hub and tip flow parameters
  • Evaluation of compressor stall and choking conditions for both compressors and turbines
  • Design analysis of multiple choked and stalled components, along with mass flow, pressure ratio and power
  • Setup of an arbitrary sequence of stage elements (rotor, stator, duct, IGV, EGV, etc.)
  • Loss models for turbines (Ainley-Mathieson; Dunham-Came; Kacker-Okapuu; Moustapha-Kacker)
  • Loss models for compressors (Koch & Smith; Wright & Miller)

Applications

Preliminary design module for radial and mixed-flow compressors

Key Features

  • Inlet guide vanes
  • Open or closed impellers
  • 2D or 3D impellers
  • Front and rear seals (multiple)
  • Diffuser types, including: Arbitrary vaned, Vaneless, Wedge/channel, Cascade, Conical, 90/180 degree bends
  • Exit elements, including: Collector, Volute, Return channel, Deswirl, Continuous Crossover
  • Various leakage paths
  • Multistage compressors

Applications

Preliminary design module for centrifugal, mixed-flow, and axial pumps

Key Features

  • Inlet guide vanes
  • Open or closed impellers
  • 2D or 3D impellers
  • Front and rear seals (multiple)
  • Diffuser types, including: Arbitrary vaned, Vaneless, Wedge/channel, Cascade, Conical, 90/180 degree bends
  • Exit elements, including: Collector, Volute, Return channel
  • Various leakage paths
  • Multistage pumps

Applications

Preliminary design module for radial and mixed-flow turbines

Key Features

  • Inlet volutes
  • Nozzles
  • Rotors
  • Exhaust diffusers

Applications

Detailed 3D design and rapid 2D flow analysis module for turbomachinery

Description

AxCent® is used for detailed 3D geometric design and employs powerful features for axial, mixed-flow and radial geometries that can be combined to design almost any type of turbomachinery. AxCent® directly integrates with COMPAL®, AXIAL®, PUMPAL® and RITAL®.

Key Features

  • Complex blade geometries
  • Options for real-time interactive flow analysis
  • Stress analysis integration with Concepts NREC’s FEA stress analysis program, Pushbutton FEA™
  • Compatibility with many commercial and open source software packages

Application