Inverse design of fluid flow structure with Turing pattern

TL;DR

This paper introduces a gradient-based optimization method that leverages reaction-diffusion equations to generate space-filling Turing pattern microchannel structures, enabling precise control of fluid flow in complex microreactors.

Contribution

It presents a novel, efficient approach to design large-scale microchannel networks using reaction-diffusion systems linked with porous media modeling.

Findings

Effective microchannel flow control demonstrated across hundreds of channels.

The method outperforms traditional intuition-based and rule-based design strategies.

Broad applicability to complex microfluidic systems.

Abstract

Microchannel reactors are critical in biological plus energy-related applications and require meticulous design of hundreds-to-thousands of fluid flow channels. Such systems commonly comprise intricate space-filling microstructures to control the fluid flow distribution for the reaction process. Traditional flow channel design schemes are intuition-based or utilize analytical rule-based optimization strategies that are oversimplified for large-scale domains of arbitrary geometry. Here, a gradient-based optimization method is proposed, where effective porous media and fluid velocity vector design information is exploited and linked to explicit microchannel parameterizations. Reaction-diffusion equations are then utilized to generate space-filling Turing pattern microchannel flow structures from the porous media field. With this computationally efficient and broadly applicable technique, precise control of fluid flow distribution is demonstrated across large numbers (on the order of hundreds) of microchannels.