Airfoil Diffusion: Denoising Diffusion Model For Conditional Airfoil Generation

TL;DR

This paper presents a diffusion model-based data-driven approach for generating and optimizing airfoil shapes conditioned on aerodynamic and geometric criteria, enabling efficient and innovative aerodynamic design.

Contribution

It introduces a novel diffusion model for airfoil generation conditioned on performance metrics, expanding design possibilities beyond traditional methods.

Findings

Successfully generates realistic airfoil shapes with desired aerodynamic properties.

Enhances design efficiency and flexibility in airfoil synthesis.

Facilitates discovery of innovative aerodynamic shapes.

Abstract

The design of aerodynamic shapes, such as airfoils, has traditionally required significant computational resources and relied on predefined design parameters, which limit the potential for novel shape synthesis. In this work, we introduce a data-driven methodology for airfoil generation using a diffusion model. Trained on a dataset of preexisting airfoils, our model can generate an arbitrary number of new airfoils from random vectors, which can be conditioned on specific aerodynamic performance metrics such as lift and drag, or geometric criteria. Our results demonstrate that the diffusion model effectively produces airfoil shapes with realistic aerodynamic properties, offering substantial improvements in efficiency, flexibility, and the potential for discovering innovative airfoil designs. This approach significantly expands the design space, facilitating the synthesis of high-performance aerodynamic shapes that transcend the limitations of traditional methods.