Inverse Design of and Experimental Measurements in a Double-Passage Transonic Turbine Cascade Model

Laskowski, Gregory M.; Vicharelli, Amanda; Medic, Gorazd; Elkins, Christopher J.; Eaton, John K.; Durbin, Paul A.

doi:10.1115/1.1929810

Cited by 19 publications

(4 citation statements)

References 17 publications

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“…Some researchers [13] indicated that the design of bleed slot was redundancy. And it leaded to serious difficulties in comparing numerical simulation to experiments [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigationg of a turbine guide vane with conjugate heat transfer method

et al. 2022

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Three-dimensional steady-state conjugate heat transfer (CHT) numerical method was utilized to study the flow and heat transfer characteristics of a turbine guide vane. In experiment, a real-sized turbine vane model and corresponding test section were designed. We verified the simulation accuracy of different turbulence models, coupling with transition model and limiter factor in CHT method. Compared with the experimental results, the results indicated that the SST model shows better accuracy and economy than other models studied in this paper.

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“…Some researchers [13] indicated that the design of bleed slot was redundancy. And it leaded to serious difficulties in comparing numerical simulation to experiments [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigationg of a turbine guide vane with conjugate heat transfer method

et al. 2022

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“…Laskowski et al [16] designed a passage for a linear cascade experiment: they used a gradient-based optimization method to obtain an infinite cascade flow condition without the use of suction bleeds. The width of the passage was double-pitch and only a single-cascade blade was installed within the passage.…”

Section: Introductionmentioning

confidence: 99%

One-pitch passage designed inversely with a single blade for cascade experiments

et al. 2010

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A linear cascade experimental apparatus often consists of only a few cascade blades. Advantages to this experimental arrangement are increased by the use of larger cascade blades, a lower mass flow rate, a corresponding decrease in required power, and easier optical access within the cascade passage. However, fewer cascade blades in the cascade row make it difficult to establish periodic flow conditions between blades compared to infinite cascade model experiments. Generally, removing fluid from the cascade walls or adjusting tailboards located downstream of the cascade are common methods to establish periodic flow conditions through the cascade blades. In this study, a passage for cascade experiments is designed to satisfy infinite cascade flow conditions without any flow control or tailboards. A one-pitch at cascade row is adopted as its width and only a single cascade blade is installed within the passage. The surface isentropic Mach number distribution on the blade is chosen for the existence of infinite cascade flow conditions, and 14 geometric design variables related to the passage shape are applied to the design of a one-pitch passage by using a genetic algorithm. Flow structures within a passage designed using a genetic algorithm match with those obtained with the infinite cascade flow condition. Computed results obtained with a single cascade blade show that infinite cascade flow conditions can be obtained by modifying only the passage walls of the cascade experimental apparatus.

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“…A passage for a linear cascade experiment was designed by using a gradient-based optimization method to obtain an infinite cascade flow condition without using suction bleeds (Laskowski et al 2005). The width of the passage is double-pitch and only a single cascade blade is installed within the passage.…”

Section: Introductionmentioning

confidence: 99%

Design of a 160% pitch passage for cascade experiments using optimization methods

Cho

Kim

et al. 2010

Engineering Optimization

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A linear turbine cascade experimental apparatus often consists of only a few cascade blades. Advantages to this arrangement are increased from using larger cascade blades and easier optical access. However, fewer cascade blades in the cascade row make it difficult to establish periodic flow conditions between blades. In this study, a 160% pitch passage for cascade experiments with a single blade is designed to satisfy infinite cascade flow conditions without any flow control or tailboards. Fourteen geometric design variables are applied to the design of a 160% pitch passage by using a gradient-based optimization method and a genetic algorithm. Flow structures within a passage designed with a genetic algorithm are closer to the infinite cascade flow conditions than those obtained with a gradient-based method. The results show that infinite cascade flow conditions can be obtained by modifying only the passage walls of the cascade experimental apparatus.

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Inverse Design of and Experimental Measurements in a Double-Passage Transonic Turbine Cascade Model

Cited by 19 publications

References 17 publications

Numerical and experimental investigationg of a turbine guide vane with conjugate heat transfer method

Numerical and experimental investigationg of a turbine guide vane with conjugate heat transfer method

One-pitch passage designed inversely with a single blade for cascade experiments

Design of a 160% pitch passage for cascade experiments using optimization methods

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