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Metamaterials for Laminar Flow Control on a Wing

Objective

Achieving extensive laminar flow can reduce aircraft drag by up to 15%, offering breakthrough potential for curbing polluting emissions in aviation and other energy-intensive sectors. To achieve this, wave-like flow instabilities growing in laminar boundary layers need to be controlled and attenuated, to delay transition from laminar to turbulent flow. However, their complex, multi-scale, and broadband nature makes these instabilities extremely challenging to control.

In MetaWing I propose a new disruptive concept for flow control, first born in classical wave physics: Metamaterials. These are engineered composite structures, invoking dispersive wave phenomena to gain exotic properties that go beyond what is considered possible in Nature. The main such property I want to explore is the bandgap, a range in which waves are suppressed when interacting with the Metamaterial. My team and I have recently found key evidence of dispersive wave suppression in boundary layers. However, wave-like flow instabilities have key differences from classical waves, forming a new regime of dispersive wave interactions. Thus, the nature of bandgaps in boundary layer flows remains unclear and unexplored.

I aim to reveal and understand the formation of bandgaps in transitional fluid flows and use them to suppress wave-like boundary layer instabilities, thus delaying laminar-turbulent transition. To achieve this, I propose the first holistic intersection of Metamaterials and Laminar Flow Control using theory, numerical simulations, novel fabrication methods and state-of-art experimental measurements.

The combined results will uncover the complex dynamic behaviour of flow instabilities under dispersive interaction with Metamaterials and will help us understand and fully exploit bandgap mechanisms in transitional flows. MetaWing will create a new class of Metamaterials for flow control and pave the way to ultra-low drag wings for the next generation of emission-free aviation.

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Keywords

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Programme(s)

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Topic(s)

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Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) ERC-2023-COG

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Host institution

TECHNISCHE UNIVERSITEIT DELFT
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 2 374 014,00
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 2 374 014,00

Beneficiaries (1)

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