GAS TURBINE Modelling and Simulation using 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.
OVERVIEW
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.
APPLICATIONS
SECONDARY & COOLANT FLOW
Flownex?? includes a comprehensive rotating component library for analysing the secondary 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:
SECONDARY FLOW
BLADE COOLING
By coupling 1D flow Flownex??models with 3D heat transfer models in ANSYS Mechanical or CFX, a detailed turbine blade cooling simulation can be conducted. 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
LUBRICATION SYSTEM
The primary use of Flownex?? in lubrication systems is used 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.
COMBUSTION CHAMBER
Preliminary combustor design requires that an extensive number of geometrical and operational conditions be evaluated and compared. Especially during this phase, Flownex?? is an essential tool for combustor design engineers as 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.
Networks can be easily configured and solved within a few seconds. This result in substantial development cost savings because of the reduction in the number of detailed 3D simulations and rig tests required. A further advantage is the ability to use the Flownex?? results as boundary conditions for subsequent localized 3D models.
EXPERIMENTAL COMPARISON
A comparison to experimental data published by NASA shows good agreement between the Flownex??results and real-world temperatures of the liner wall for a wide range of operating conditions. The full report was presented at the 2016 ASME turbo expo.
SOLUTION TIME < 3 SECONDS WITH A MAXIMUM ERROR < 11%
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INTEGRATED SYSTEM ANALYSIS
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.
TESTIMONIALS
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. FulsAssociate Professor | University of Cape Town
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 KuntzagkLufthansa Technik AG | Performance & Design Engineer
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. FulsAssociate Professor | University of Cape Town
FEATURED VIDEOS
RAPID DESIGN OF COOLING FLOW PATHS FOR TURBOMACHINERY
GAS TURBINE LUBRICATION SYSTEM MODELING
RAPID COMBUSTOR MODELING IN A 1D FLOW NETWORK TOOL
CLIENTS
RESEARCH PAPERS
RAPID PRELIMINARY COMBUSTOR DESIGN USING A FLOW NETWORK APPROACH
– B. du Toit & S. Theron
STUDIES ON PART LOAD CONTROLLED COOLING AIR SUPPLIES IN STATIONARY GAS TURBINES
– D. Woelki, J. Foret & D. Peitsch
For demo and discussion : [email protected] +91 8618908683
Design | Simulation Engineer
11 个月Sounds promising. Especially the ability to see rapidly the effects of design changes in max blade temperature, cooling airflow rate and also, heat transfer correlation for turbine blade features.
Team Lead - Flownex Simulation Support
1 年The 2023 enhancements to Rotor-Rotor and Rotor-Stator cavity modeling is huge for secondary flow modeling!
Director @ DHIO Research & Engineering Pvt Ltd
1 年Flownex? SE
Looks a good simulation tool.