Learn more about Flownex:
Optimize the preliminary design process by obtaining fast and accurate design results. Flownex Simulation Environment is the perfect tool to model turbine secondary flow systems, combustion, flow and heat transfer.
Flownex SE provides turbomachinery engineers with an easy to use, off-the-shelf tool for modelling combustion chambers, secondary air systems, blade cooling flows, lubrication systems with oil-air mixtures, as well as overall cycle integration and operation. Ease of use, parameterization, customization, and advanced models make it ideal as a replacmeent for an existing gas turbine toolset or as a new platform to design more efficient and robust rotating power systems.
Flownex includes a comprehensive rotating component library for analysing the secondary flow air system of a gas turbine engine. This enables engineers to quantify the bleed air consumption and flow distribution through the entire system. Furthermore, coupling Flownex with Ansys Mechanical enables engineers to perform detailed thermal studies of critical rotating components. Flownex includes:
Preliminary combustor design requires that an extensive number of geometrical and operational conditions be evaluated and compared. Flownex is an essential tool for combustor design engineers during this early design phase. It accurately captures important parameters such as the mass flow rate distribution through air admission holes, associated pressure losses as well as liner wall temperatures.
Specific capabilities include:
Networks can be easily configured and solved within a few seconds. This result in substantial development cost savings because of the reduced number of detailed 3D simulations and rig tests required. A further advantage is using the Flownex results as boundary conditions for subsequent localized 3D models.
A detailed turbine blade cooling simulation can be conducted by coupling 1D flow Flownex models with 3D heat transfer models in ANSYS Mechanical or Ansys CFD. Flownex contains industry-standard pressure drop and heat transfer correlations for typical turbine blade features such as turbulator strips and pedestals. This allows designers to rapidly see the effects of their design changes on the maximum blade temperatures and cooling airflow rate.
Preliminary combustor design requires that an extensive number of geometrical and operational conditions be evaluated and compared. Flownex is an essential tool for combustor design engineers during this early design phase. It accurately captures important parameters such as the mass flow rate distribution through air admission holes, associated pressure losses as well as liner wall temperatures.
Specific capabilities include:
Networks can be easily configured and solved within a few seconds. This result in substantial development cost savings because of the reduced number of detailed 3D simulations and rig tests required. A further advantage is using the Flownex results as boundary conditions for subsequent localized 3D models.
The primary use of Flownex in lubrication systems for rotating machinery is to determine optimum drain line sizes given the limited space inside the engine. This requires two-phase pressure drop calculations in lines with oil-air mixtures. In parallel with this, engineers can determine whether or not scavenge pumps are required for fluid transportation in the drain lines and, if so, what the pumping requirement will be.
Common Flownex components used in lubrication systems simulation are:
Flownex allows engineers to couple all turbine models (combustor, secondary flow, and lubrication) with the main flow path to understand the performance of the entire engine.
Beyond component-level models, Flownex supports several system-level representations of key turbomachinery assemblies:
“Flownex is able to accurately predict flow and heat transfer in secondary air systems, whilst reducing model setup and execution time substantially compared to 3D CFD.”
– Stefan Kuntzagk
Performance & Design Engineer
Lufthansa Technik AG
“Flownex is an ideal tool to develop reduced-order models of complex thermo-fluid networks. I have used it extensively to model steam turbines, and because it simply does not take any shortcuts w.r.t. the fundamentals of thermodynamics, I can trust the overall system result.”
– W. F. Fuls
Associate Professor
University of Cape Town
PADT has been supporting gas turbine companies, and using Flownex for consulting for gas turbines, since we started as a reseller for the product. We speak your language and understand your technical needs.
If you are ready to make Flownex part of your simulation workflow, reach out today at info@padtinc.com
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