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A quantum-inspired approach to exploit turbulence structures

Abstract:
Understanding turbulence is key to our comprehension of many natural and technological flow processes. At the heart of this phenomenon lies its intricate multiscale nature, describing the coupling between different-sized eddies in space and time. Here we analyze the structure of turbulent flows by quantifying correlations between different length scales using methods inspired from quantum many-body physics. We present the results for interscale correlations of two paradigmatic flow examples, and use these insights along with tensor network theory to design a structure-resolving algorithm for simulating turbulent flows. With this algorithm, we find that the incompressible Navier–Stokes equations can be accurately solved even when reducing the number of parameters required to represent the velocity field by more than one order of magnitude compared to direct numerical simulation. Our quantum-inspired approach provides a pathway towards conducting computational fluid dynamics on quantum computers.
Publication status:
Published
Peer review status:
Peer reviewed

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Files:
Publisher copy:
10.1038/s43588-021-00181-1

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Oxford college:
Keble College
Role:
Author
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Publisher:
Springer Nature
Journal:
Nature Computational Science More from this journal
Volume:
2
Issue:
2022
Pages:
30–37
Publication date:
2022-01-13
Acceptance date:
2021-12-02
DOI:
EISSN:
2662-8457

Language:
English
Keywords:
Pubs id:
1226851
Local pid:
pubs:1226851
Deposit date:
2021-12-26

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