Details
Original language | English |
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Publication status | Published - Nov 2019 |
Event | International Gas Turbine Congress (IGTC) 2019 - Toranomon Hills Forum, Tokyo, Japan Duration: 17 Nov 2019 → 22 Nov 2019 |
Conference
Conference | International Gas Turbine Congress (IGTC) 2019 |
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Country/Territory | Japan |
Period | 17 Nov 2019 → 22 Nov 2019 |
Abstract
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2019. Paper presented at International Gas Turbine Congress (IGTC) 2019, Japan.
Research output: Contribution to conference › Paper › Research
}
TY - CONF
T1 - Improving Aerothermal and Aeromechanical Turbomachinery Design by Combining High-Fidelity Methods with Multi-Stage Approaches
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
PY - 2019/11
Y1 - 2019/11
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.
M3 - Paper
T2 - International Gas Turbine Congress (IGTC) 2019
Y2 - 17 November 2019 through 22 November 2019
ER -