Prediction of axial compressor blade excitation by using a two-way staggered fluid-structure interaction model

Brandsen, Jacobus D; Spuy, Sybrand J. van der; Venter, Gerhard

doi:10.1177/0954410017694056

Cited by 2 publications

(6 citation statements)

References 6 publications

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“…To verify the accuracy of the decoupling method in predicting the compressor blade vibration, the vibration of a compressor blade [36,37] excited by the pulsating jet hole is calculated in this paper, as shown in Figure 7. In the references, the 660 Hz pulsating air flow of the jet hole excites the head rotor blade, which contains 15 jet holes and 43 rotor blades.…”

Section: Methods Verificationmentioning

confidence: 99%

“…In the references, the 660 Hz pulsating air flow of the jet hole excites the head rotor blade, which contains 15 jet holes and 43 rotor blades. The rotor blade is excited by the 660 Hz pulsating air flow and by the 720 Hz excitation caused by the rotor-stator interference between the jet hole and the rotor blade Brandsen [37] carried out a bidirectional coupling calculation. To reduce the calculation cost, the numbers of jet holes and rotor blades were, respectively, changed to 14 and 42, and 1/14 channel was used for calculation without modifying the relevant geometry At this time, the excitation frequency caused by the rotor-jet hole interaction was changed to 672 Hz.…”

Section: Methods Verificationmentioning

confidence: 99%

Section: Methods Verificationmentioning

confidence: 99%

“…The rotor blade is excited by the 660 Hz pulsating air flow and by the 720 Hz excitation caused by the rotor-stator interference between the jet hole and the rotor blade. Brandsen [37] carried out a bidirectional coupling calculation. To reduce the calculation cost, the numbers of jet holes and rotor blades were, respectively, changed to 14 and 42, and 1/14 channel was used for calculation without modifying the relevant geometry.…”

Section: Methods Verificationmentioning

confidence: 99%

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Influence of Position of Intake Struts on Unsteady Load and Vibration of First-Stage Rotor

Peng

Ren²,

Li³

et al. 2022

Machines

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To investigate the influence law and mechanism of the relative circumferential position of intake struts on the unsteady load and vibration of the first stage rotor, the first 1.5-stage of a heavy-duty gas turbine compressor with intake struts was numerically simulated. The analysis of the flow field and vibration of the rotor blade reveals that the circumferential position of intake struts has little effect on aerodynamic performance but obviously changes the unsteady load and vibration level of the rotor blade. When strut and inlet guide vane wakes coincide, they are strengthened, resulting in the overall enhancement of the unsteady load and vibration on the rotor blade. The circumferential position of struts changes the combined effect of strut wakes and the first stage stator potential flow on the rotor blade, which has an obvious influence on the unsteady load and vibration in the middle chord length but has little influence on the unsteady load near the leading and trailing edges. Research results provide reference and guidance for the installation of struts.

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Section: Methods Verificationmentioning

confidence: 99%

Section: Methods Verificationmentioning

confidence: 99%

Section: Methods Verificationmentioning

confidence: 99%

Section: Methods Verificationmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Position of Intake Struts on Unsteady Load and Vibration of First-Stage Rotor

Peng

Ren²,

Li³

et al. 2022

Machines

View full text Add to dashboard Cite

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“…The no-slip condition that exists at the wetted boundary is imposed in the fluid dynamics model through Dirichlet boundary conditions. DB methods have been used to investigate FSI in a wide variety of applications such as the vibration of wind turbines (Bazilevs et al, 2011) and axial compressor rotors (Brandsen et al, 2018), the deployment of spacecraft parachutes (Gao et al, 2016) and the response of submersible hulls to underwater explosions (Gong, 2019). The second group, called immersed boundary methods, are the focus of this article.…”

Section: Introductionmentioning

confidence: 99%

A comparative analysis of Lagrange multiplier and penalty approaches for modelling fluid-structure interaction

Brandsen

Viré

Turteltaub

et al. 2020

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Purpose When simulating fluid-structure interaction (FSI), it is often essential that the no-slip condition is accurately enforced at the wetted boundary of the structure. This paper aims to evaluate the relative strengths and limitations of the penalty and Lagrange multiplier methods, within the context of modelling FSI, through a comparative analysis. Design/methodology/approach In the immersed boundary method, the no-slip condition is typically imposed by augmenting the governing equations of the fluid with an artificial body force. The relative accuracy and computational time of the penalty and Lagrange multiplier formulations of this body force are evaluated by using each to solve three test problems, namely, flow through a channel, the harmonic motion of a cylinder through a stationary fluid and the vortex-induced vibration (VIV) of a cylinder. Findings The Lagrange multiplier formulation provided an accurate solution, especially when enforcing the no-slip condition, and was robust as it did not require “tuning” of problem specific parameters. However, these benefits came at a higher computational cost relative to the penalty formulation. The penalty formulation achieved similar levels of accuracy to the Lagrange multiplier formulation, but only if the appropriate penalty factor was selected, which was difficult to determine a priori. Originality/value Both the Lagrange multiplier and penalty formulations of the immersed boundary method are prominent in the literature. A systematic quantitative comparison of these two methods is presented within the same computational environment. A novel application of the Lagrange multiplier method to the modelling of VIV is also provided.

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Prediction of axial compressor blade excitation by using a two-way staggered fluid-structure interaction model

Cited by 2 publications

References 6 publications

Influence of Position of Intake Struts on Unsteady Load and Vibration of First-Stage Rotor

Influence of Position of Intake Struts on Unsteady Load and Vibration of First-Stage Rotor

A comparative analysis of Lagrange multiplier and penalty approaches for modelling fluid-structure interaction

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