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Simuneer Team März 2026
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NUMECA Ingenieurbüro is now Simuneer

Keeping the same dedication and passion you have known for 29 years.

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Support hotline:
+49 9187 410-310
Support e-mail:
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Simuneer Team März 2026
Click here

NUMECA Ingenieurbüro is now Simuneer

Keeping the same dedication and passion you have known for 29 years.

Read more

Simuneer Team März 2026
Click here

NUMECA Ingenieurbüro is now Simuneer

Keeping the same dedication and passion you have known for 29 years.

Read more

Master Your
Aeroacoustics

  • High accuracy
  • Strong scaling
  • In-situ Post-Processing
  • High accuracy
  • Strong scaling
  • In-situ Post-Processing
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Efficient Acoustic Simulations (CAA)

with Simuneer and Cadence Fidelity® CFD Software

CAA software and workflow for quiet products

Quieter, more efficient, more environmentally friendly — noise predictions are crucial for the competitiveness of your products. With the CAA software tools from Cadence Fidelity®, you can map the generation and propagation of sound as early as the development process, without time-consuming model tests and prototypes.

Our goal: an efficient workflow for aeroacoustic simulation (CAA) for your product development, including post-processing, algorithms for optimization, reports and visualizations.
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LES: The gold standard for predicting noise emissions

Large Eddy Simulation (LES) is the gold standard for determining tonal sound emissions and broadband noise (e.g. due to turbulence, detachment and vortex shedding).

Fidelity CharLES scales excellently on CPUs and GPUs and masters complex geometries using Voronoi meshing. Typical use cases are: Fans and vehicles, propeller and rotor noise or nozzle and jet noise.
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Simulate tonal noise quickly and accurately — with NLH

Nonlinear Harmonic (NLH) is a frequency-based method specially developed for turbomachinery to obtain reliable information on tonal peaks.

The advantage: With NLH you only calculate the relevant frequencies (high calculation efficiency!) and save a lot of time. The ideal method for periodic phenomena such as rotor-stator interactions in fans, compressors or turbines.
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Aeroacoustic Simulations:
Which tools do you need?

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Fidelity CFD Platform

Specialized CAA software for acoustic simulations

Stitch — Voronoi Meshing (LES)

Specially optimized for LES, Stitch generates Voronoi-based volume meshes with isotropic resolution — ideal for the precise resolution of complex turbulent structures.

  • High grid quality thanks to orthogonal cell geometry
  • Flexible topologies: polyhedral or hexadominant cells depending on the background distribution
  • Robust with complex geometry due to decoupled surface and volume length scales
  • Massively scalable for large models and HPC environments
high mesh quality of polyhedral LES-capable meshing with Fidelity® Stitch here NASA CRM airplane wing
Fidelity® Stitch provides a stable meshing workflow for voronoi-based polyhedral or hexadominant volume meshes
Precise mapping of complex geometries, even for automotive exterior aerodynamics and engine compartment flow
Stitch supports high regularity and anisotropy of the boundary layer through organized point distribution for turbomachinery

Fidelity Turbo — Solver (turbo machines)

The fast specialist for turbomachinery: Fidelity Turbo is a structured solver with many customized special modules for the world of turbomachinery.

  • From fans and pumps to compressors and turbines, it delivers reliable results and shortens development cycles
  • No solver is faster on the CPU and on the GPU
  • Frequency-based transient: The NLH (Nonlinear Harmonic) method calculates rotor-stator interactions extremely efficiently – always as a single-passage model and across any number of rows
Faster development cycles of centrifugal compressors with the specialized turbomachinery CFD solver Fidelity Turbo (relative Mach number)
Rodelta optimizes pumps for cavitation-free performance with maximum effect and minimum consumption with Fidelity Turbo

Fidelity Flow — Solver (platform)

As a flexible CFD platform, Open covers everything from day-to-day business to multiphysics.
  • Heat transfer (CHT), combustion, cavitation and particles
  • Mixed-mesh solver for all meshes
  • Automated workflows through Python API and batch mode
Micro gas turbine KJ66 multiphsik total engine simulatio inculsive combustion chamber with Fidelity Flow
Automatic mesh adaptation in Fidelity Flow with Pointwise and Hexpress meshes to increase solver accuracy and performance
Complete axial turbine configuration including inlet manifold, nozzle, rotor and outlet manifold in Fidelity Flow
Honda CRV complete analysis of heat management and air conditioning in the automotive with Fidelity Flow
Acoustic analysis with NLH method of a quad copter drone with multiple rotating axes with static pressure in the near field

Fidelity CharLES — Solver (High-Fidelity)

Fidelity CharLES is a specialized LES flow solver designed for very low numerical dissipation. In combination with high-quality Voronoi-based volume grids from Stitch, this enables precise resolution of turbulent structures at comparatively low cell numbers – ideal for demanding industrial applications.

  • LES for high Reynolds numbers with near-industrial computing times
  • Efficient HPC utilization thanks to excellent scaling on CPU and GPU
  • High accuracy for transition, detachment and rotor-stator interactions
Aeroacoustic analysis of high speed flow for aerospace application with Fidelity LES Simulation

More reasons to choose Fidelity CFD:

  • Modern, intuitive user interface
  • Combine structured and unstructured networks
  • Automatic switching between structured and unstructured algorithms per domain
  • Faster convergence for low velocity flows thanks to pressure-based solver
  • In-situ co-processing and local post-processing
  • Complete automation via the Python API

CFD Software for your industry:

HVAC

Turbomachinery

Navy

Aerospace

Hydroenergy

Automotive

Combustion

Highlights

NASA E3 aerospace combustor — high-precision WMLES with full multi-physics GPU implementations to predict heat transfer and durability of linings and exit temperature profiles. The reactive flows, fluid sprays, conjugate heat transfer and high-fidelity multiphase flows are simulated with Fidelity CharLES.

High-resolution CFD simulation of the crossfire ignition of a gas turbine with Cadence Fidelity CharLES. Visualized are temperature contours through the combustion chambers and the first turbine stage. Video courtesy of GE Vernova.

Radialverdichter im Detail: Wall-modelled LES mit 180 Mio. Zellen – in nur 13 Stunden auf 8 AMD GPUs gerechnet. Hochaufgelöste Strömungs- und Akustikvorhersage bei industriell relevanten Turnaround-Zeiten, inklusive optionaler FW-H-Auswertung.

3, 2, 1 ... Flow!

We go the extra mile for you. That’s why we support you from day 0 of the software launch with tutorials, training and support.

Day 0

Start: Your software license is now active.

Day 0-5

Warm up and get to know the software with
2-3 tutorials

Day 6-7

2-day training course on meshing, simulation and post-processing for your specific application

Day 8-20

You apply the knowledge you have acquired — in close cooperation with our team

Day 21

1-day training for in-depth and special topics

Day 22+

We stay in close contact and are there for you — with professional support and our engineering services

Ready to get started?

Book a call

Or call us directly: +49 9187 410-310

Proven in Practice

Simuneer Team März 2026

NUMECA Ingenieurbüro is now Simuneer

Keeping the same dedication and passion you have known for 29 years.
Musterfirma GmbH

Read case study

Coverphoto by asoggetti on Unsplash

Extending quadcopter drone flight time and range with Fidelity CFD simulation

aerodynamic simulation and optimisation of an industrial quadcopter drone (UAV) in hover mode, the most energy intensive mode of this type of drone.
Musterfirma GmbH

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Distribution of the instantaneous blade surface disturbation pressure giving rise to aerodynamic damping.

Prediction of the unsteady Flow

Developing a workflow for accurate, reliable and affordable prediction of forced response vibrations in radial turbines, taking into account mistuning effects.
Musterfirma GmbH

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High-Fidelity-LES der EGR-gesteuerten Verbrennung in industriellen Gasturbinen

High-Fidelity LES of EGR-Driven Combustion in Industrial Gas Turbines

GPU-accelerated large eddy simulations (LES) of Solar Turbines’ Taurus 60 SoLoNOx combustor using Fidelity CFD.
Musterfirma GmbH

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ZigZag-Manöver ONRT Schiff in Großausführung inklusive beider Propeller und aller Anhänge

Why Fidelity Fine Marine Stands Apart in the CFD World

Discover how a purpose-built marine CFD platform can improve simulation accuracy while reducing turnaround time across propulsion, resistance, and seakeeping studies.
Musterfirma GmbH

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Surface and volume mesh of an impeller solid meshed with Surface to Volume (S2V) method in Fidelity Hexpress

Surface to Volume (S2V) Meshing in Fidelity Hexpress

Are you aware, that we can do unstructured meshing with a surface-to-volume (S2V) algorithm?
Musterfirma GmbH

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Beyond Software

We offer more than powerful software. Discover our simulation skills and services.

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Simulation, optimization or automation? We’ll take care of it.

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Software implementation, order calculation or troubleshooting: Talk to us about your challenges and goals. From professional to professional.

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Or call us directly: +49 9187 410-310