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March 27, 2026Journal of Fluids Engineering

Is DNS Ready for Prime Time?: The State of ANSYS Fluent DNS in 2025

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Authors

RPReid PrichardWSWayne StrasserKWKeith Walters

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Overview

Tests ANSYS Fluent's ability to perform DNS in fluid dynamics, indicating partial readiness for industry application.

Key Points

  • This research aims to determine the feasibility of using ANSYS Fluent for Direct Numerical Simulation in industrial applications.
  • Utilized ANSYS Fluent to simulate low-Reynolds number channel flow
  • Compared momentum discretization schemes on six distinct grids
  • Evaluated accuracy of velocity profiles and turbulent kinetic energy budgets
  • Assessed solution speed improvements with GPU acceleration
  • Predicted velocity profiles showed moderate error
  • Wall-normal profiles of turbulent kinetic energy exhibited significant error
  • Notable spectral pileup was observed in solutions
  • ANSYS Fluent is concluded to be only partially ready for DNS applications

Cite This Study

Prichard et al. (2026) studied this question.

synapsesocial.com/papers/69c61ff615a0a509bde1862chttps://doi.org/10.1115/1.4071474
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