Cooled Gas Turbine Simulation Coupling AxSTREAM NET & STAR-CCM+

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State-of-the-art gas turbine engines usually work under extremely high temperatures. A critical part of the design process for a new or improved engine involves decreasing thermal stresses by ensuring that components like the nozzles, blades, stator and rotor disks, are effectively cooled. Typically, bleed air can be taken from various areas in the compressor for cooling purposes. On the other hand, gas turbine engines need to be designed with maximum possible efficiency; which means limiting the amount of air bled from the compressor. Estimating how much air needs to be diverted from the flowpath for cooling purposes is difficult, and engineers often encounter challenges that include:

• Time and cost associated with physical testing
• Iterating the problem and solution numerous times to optimize the process
• Identifying emergent problems with the cooling system during the design process

To address this challenge, modern software tools such as AxSTREAM NET, developed by SoftInway, and STAR-CCM+ are used by engineers for secondary flow and thermal analysis. By utilizing a 1D solver such as AxSTREAM NET coupled with STAR-CCM+, engineers can predict the gas turbine engine secondary cooling flow path using a 1D evaluation with 3D estimations.

For over 2 decades, SoftInWay Inc. has been supporting companies both small and large, research organizations, and universities  in the turbomachinery space, with its software and engineering services. Recently, SoftInWay has partnered with Siemens Digital Industries to offer STAR-CCM+ along with AxSTREAM NET as an integrated solution for secondary flow and gas turbine cooling design and analysis. This multidisciplinary toolset covers topics ranging from flowpath development, to thermal-fluid network performance analysis, to advanced thermal and structural calculations, covering all aspects of turbomachinery system projects.

In this webinar, we will discuss the integrated solution for predicting gas turbine secondary and cooling flows using our 1D solver AxSTREAM NET alongside STAR-CCM+ for estimation of the turbine’s cooling measures’ performance quickly. Doing so will enable us to estimate the amount of bleed-air required for optimal blade cooling, while minimizing efficiency losses.

The webinar session will include:

• Overview of the 1D interval approach for secondary flow path modeling in AxSTREAM NET™
• Blade cooling estimations using STAR CCM +
• Integrating the tools used in this approach for modeling the entire secondary flow path and blade cooling through AxSTREAM ION™

Who should attend?

• Engineers involved in secondary flow modeling for turbomachinery and other machines.
• Engineering students looking for hydraulic and thermal calculation examples to deepen their understanding of real world engineering problems, using industry-standard software.
• Engineers and technicians looking to improve current process-efficiency for thermal network and secondary flow calculations.

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