TwinMesh for Reliable CFD Analysis of Scroll Compressors and Scroll Expanders

Combining TwinMesh and ANSYS CFD offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal simulation (cfd) of scroll compressors, expanders and scroll-typed superchargers

Developers of Scroll Compressors and Expanders Have to:

  • Analyse the impact of varying operation requirements (e.g. impact of external temperatures, rotation speed).
  • Get well knowledge of their machine behaviour in detail (e.g. cooling, clearance flow, etc.)
  • Be able to answer specific customer demands (e.g. operating range, noise reduction) and
  • Produce fast and reliable answers.

Thanks to our novel software TwinMesh virtual product development is now available for scroll compressors, expanders and scroll-typed superchargers! TwinMesh and ANSYS CFD together allow efficient and reliable CFD analysis of scroll compressors and expanders.

2D view of rotor and stator meshes for scroll compressors
3D view of rotor and stator meshes for scroll compressors

No More Numerical Limits

Common limitations of CFD software packages such as limited physics, insufficient mesh resolution or numerical errors due to bad mesh quality and mesh interpolation errors or due to numerical limits of overlapping mesh methods are redundant for the TwinMesh approach.

Using structured grids from the TwinMesh software users get access to the full capability of CFD modelling available in ANSYS CFD. The high quality meshes from TwinMesh result in reliable and stable CFD simulations at moderate model sizes and moderate calculation times for transient analysis. Even for multiphase simulation such like oil-injectes or water-cooled scroll compressors and expanders.

Reliable CFD Analysis of Scroll Compressors and Expanders

CFD simulation results of scroll compressor and expanders designs generated with TwinMesh and ANSYS CFD software provide design engineers with essential information such as:

  • Velocity, pressure, and temperature fields within the working chambers and in axial and radial clearances
  • Flow rates and mass flow at different operation points
  • Torques, moments, forces and machine efficiency (CoP)
  • Leakage and losses
  • Pulsation behaviour of the machine
  • Mechanical wear, lubrication and cooling
  • Duration and magnitude of acoustic sources (emission)

TwinMesh and ANSYS CFD together make a reliable, modern, and state-of-the-art engineering tool, which allows for fast, reliable and efficient analysis and optimization of scroll compressors and scroll expanders.

Vizualisation of velocity distribution in scroll compressors

Better Designs

Increase machine performance, efficiency, and durability by a better understanding of complex phenomena inside your machine.


Speed & Flexibility

Reduce your time-to-market and fasten your response time to changing demands significantly by massive use of virtual prototyping.

Drive Innovation

Drive real innovation by getting deeper insight into the details of your products and their interaction with connected systems.

Reduced Costs

Reduce development and manufacturing costs by massive use of virtual product development instead of time consuming measurements on physical prototypes.

CFD Results of Scroll Compressors and Scroll Expanders Simulations

Animations of Scroll Compressor Simulations

CFD simulation of variable thickness scroll compressor

Massless particles in scroll compressor

Related blog entries

TwinMesh™ 2023 released

TwinMesh™ 2023 released

We are pleased to announce the new release of TwinMesh™ 2023. We added many new features like adding deformation to the rotors and the casing. This gives you an even more realistic flow behaviour inside the machine. Read further for getting information about enhancements and new features in TwinMesh™ 2023.

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