Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches

Research output: Contribution to conferencePaperResearch

Authors

  • Dajan Mimic
  • Christoph Jätz
  • Marcel Oettinger
  • Florian Herbst
  • Hendrik Seehausen
  • Sebastian Kurth
  • Dominik Frieling
  • Mark Zieße
  • Jörg Reinhart Seume
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Details

Original languageEnglish
Publication statusPublished - Nov 2019
EventInternational Gas Turbine Congress (IGTC) 2019 - Toranomon Hills Forum, Tokyo, Japan
Duration: 17 Nov 201922 Nov 2019

Conference

ConferenceInternational Gas Turbine Congress (IGTC) 2019
Country/TerritoryJapan
Period17 Nov 201922 Nov 2019

Abstract

The field of turbomachinery is undergoing a transformation, which favors flexibility, dynamic operation, and off-design performance over mere peak efficiency. In the case of aircraft engines, ever-increasing demands for lower emissions, reduced fuel consumption, and substantially reduced noise drive this trend. As a result, aircraft engines have to perform more efficiently, cleanly and quietly in all phases of flight, i.e., in off-design operation. In the case of stationary gas turbines, power engineers have to face the challenge of highly volatile residual loads on the power grid. Off-design operation, however, yields turbomachine flows characterized by regions of high inhomogeneity and unsteadiness: flow separation, strong secondary flow, and complex turbulent structures interact throughout the stages and cause high aeromechanical loads. Due to the complex flow structures, off-design operating points are usually difficult to predict with conventional Reynolds-averaged Navier–Stokes (RANS) methods and, thus, require high-fidelity computation. Stage interaction requires the proper modeling of multi-stage effects.

Cite this

Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches. / Mimic, Dajan; Jätz, Christoph; Oettinger, Marcel et al.
2019. Paper presented at International Gas Turbine Congress (IGTC) 2019, Japan.

Research output: Contribution to conferencePaperResearch

Mimic, D, Jätz, C, Oettinger, M, Herbst, F, Seehausen, H, Kurth, S, Frieling, D, Zieße, M & Seume, JR 2019, 'Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches', Paper presented at International Gas Turbine Congress (IGTC) 2019, Japan, 17 Nov 2019 - 22 Nov 2019. <https://www.researchgate.net/publication/344567079_Improving_Aerothermal_and_Aeromechanical_Turbomachinery_Design_by_Combining_High-Fidelity_Methods_with_Multi-Stage_Approaches>
Mimic D, Jätz C, Oettinger M, Herbst F, Seehausen H, Kurth S et al.. Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches. 2019. Paper presented at International Gas Turbine Congress (IGTC) 2019, Japan.
Mimic, Dajan ; Jätz, Christoph ; Oettinger, Marcel et al. / Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches. Paper presented at International Gas Turbine Congress (IGTC) 2019, Japan.
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title = "Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches",
abstract = "The field of turbomachinery is undergoing a transformation, which favors flexibility, dynamic operation, and off-design performance over mere peak efficiency. In the case of aircraft engines, ever-increasing demands for lower emissions, reduced fuel consumption, and substantially reduced noise drive this trend. As a result, aircraft engines have to perform more efficiently, cleanly and quietly in all phases of flight, i.e., in off-design operation. In the case of stationary gas turbines, power engineers have to face the challenge of highly volatile residual loads on the power grid. Off-design operation, however, yields turbomachine flows characterized by regions of high inhomogeneity and unsteadiness: flow separation, strong secondary flow, and complex turbulent structures interact throughout the stages and cause high aeromechanical loads. Due to the complex flow structures, off-design operating points are usually difficult to predict with conventional Reynolds-averaged Navier–Stokes (RANS) methods and, thus, require high-fidelity computation. Stage interaction requires the proper modeling of multi-stage effects.",
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AU - Mimic, Dajan

AU - Jätz, Christoph

AU - Oettinger, Marcel

AU - Herbst, Florian

AU - Seehausen, Hendrik

AU - Kurth, Sebastian

AU - Frieling, Dominik

AU - Zieße, Mark

AU - Seume, Jörg Reinhart

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N2 - The field of turbomachinery is undergoing a transformation, which favors flexibility, dynamic operation, and off-design performance over mere peak efficiency. In the case of aircraft engines, ever-increasing demands for lower emissions, reduced fuel consumption, and substantially reduced noise drive this trend. As a result, aircraft engines have to perform more efficiently, cleanly and quietly in all phases of flight, i.e., in off-design operation. In the case of stationary gas turbines, power engineers have to face the challenge of highly volatile residual loads on the power grid. Off-design operation, however, yields turbomachine flows characterized by regions of high inhomogeneity and unsteadiness: flow separation, strong secondary flow, and complex turbulent structures interact throughout the stages and cause high aeromechanical loads. Due to the complex flow structures, off-design operating points are usually difficult to predict with conventional Reynolds-averaged Navier–Stokes (RANS) methods and, thus, require high-fidelity computation. Stage interaction requires the proper modeling of multi-stage effects.

AB - The field of turbomachinery is undergoing a transformation, which favors flexibility, dynamic operation, and off-design performance over mere peak efficiency. In the case of aircraft engines, ever-increasing demands for lower emissions, reduced fuel consumption, and substantially reduced noise drive this trend. As a result, aircraft engines have to perform more efficiently, cleanly and quietly in all phases of flight, i.e., in off-design operation. In the case of stationary gas turbines, power engineers have to face the challenge of highly volatile residual loads on the power grid. Off-design operation, however, yields turbomachine flows characterized by regions of high inhomogeneity and unsteadiness: flow separation, strong secondary flow, and complex turbulent structures interact throughout the stages and cause high aeromechanical loads. Due to the complex flow structures, off-design operating points are usually difficult to predict with conventional Reynolds-averaged Navier–Stokes (RANS) methods and, thus, require high-fidelity computation. Stage interaction requires the proper modeling of multi-stage effects.

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