Efficient Fluid-Structure Interaction Method for Conceptual Design of Flexible, Fixed-Wing Micro-Air-Vehicle Wings

Combes, Thomas P.; Malik, Arif; Bramesfeld, Goetz; McQuilling, Mark

doi:10.2514/1.j053125

Cited by 18 publications

(2 citation statements)

References 21 publications

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“…3.3a. To solve this, Combes extended the FreeWake method to model wings using triangular elements [38]. As seen in Fig.…”

Section: Methodsmentioning

confidence: 99%

An Analysis Tool for the Conceptual Design of High-Lift Systems

Bissonnette¹

2021

Preprint

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An aerodynamic analysis tool for the conceptual design of high-lift devices has been developed. The method employs a higher-order potential ow method that uses elements of distributed vorticity. The subsequent numerically robust model allows for strong wake interactions, even when using a relaxed wake. The method predicts lift and induced drag values that compare well with multiple data experiments, and, when implemented in a panel code, maximum lift predictions of a high-lift system are found with an error of 6% from experimental data. This method is used to assess the impact that various wake models have on lift and induced drag predictions. This study shows that significant errors can be introduced when employing a prescribed wake model set to extreme angles. Compared to an approach using CFD, the computational expense of these models is relatively low. A single analysis requires minutes, making these models suitable for the iterative conceptual design phase

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“…3.3a. To solve this, Combes extended the FreeWake method to model wings using triangular elements [38]. As seen in Fig.…”

Section: Methodsmentioning

confidence: 99%

An Analysis Tool for the Conceptual Design of High-Lift Systems

Bissonnette¹

2021

Preprint

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“…Compared to other higher fidelity methods, the computational time required for a single case with the present method is significantly reduced. For a given gust case, approximately 8-9 hours of CPU time is required on a 3.5 GHz processor; coupled CFD-CSD approaches for a similar analysis would require on the order of 36-48 hours [36]. The computational time required is approximately 75% less, while the accuracy of the model is still reasonable when compared to higher fidelity approaches.…”

Section: Aeroelastic Modelmentioning

confidence: 99%

Modeling of Gust Energy Extractions through Aeroelastic Tailoring

Melville¹

2021

Preprint

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A tightly coupled fluid-structure interaction model is presented for studying the performance of flexible wings that encounter atmospheric gusts. The aerodynamic module uses a higher-order potential flow method, that provides numerical robustness and efficiency. The structural dynamics is modelled through an explicit finite difference method of the time-depenedent Euler-Bernoulli equations. Coupled together, these approaches offer numerical accuracy at a fraction of the computational time than is required for higher fidelity approaches. Previous research has suggested energy gains are possible from atmospheric gusts through aeroelastic tailoring. Case studies were performed using the aeroelastic model to investigate the merit of using aeroelastic tailoring as a passive means for performance improvement. Design trends were established that highlight configurations that achieve the best energy extraction from a gust. Reductions in wing drag of between 6.9% and 10.5% were observed, while gains of 0.25% between different aeroelastic configurations were presented. The forward sweeping of the elastic axis was deemed to have the greatest effect on energy extraction capabilities.

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Numerical Study of the Aerodynamic Performance of Two Coaxial Flapping Rotary Wings Under Wake Interaction

CHU

Zhou

2022

Lecture Notes in Electrical Engineering

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Efficient Fluid-Structure Interaction Method for Conceptual Design of Flexible, Fixed-Wing Micro-Air-Vehicle Wings

Cited by 18 publications

References 21 publications

An Analysis Tool for the Conceptual Design of High-Lift Systems

An Analysis Tool for the Conceptual Design of High-Lift Systems

Modeling of Gust Energy Extractions through Aeroelastic Tailoring

Numerical Study of the Aerodynamic Performance of Two Coaxial Flapping Rotary Wings Under Wake Interaction

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