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Updated: Aug 4, 2026
09:58
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
Published on: February 3, 2014
New directions in fluid dynamics: non-equilibrium aerodynamic and microsystem flows
Jason M Reese1, Michael A Gallis, Duncan A Lockerby
1Department of Mechanical Engineering, University of Strathclyde, Glasgow G1 1XJ, UK.
Summary
Non-equilibrium fluid flows are crucial for advanced engineering but poorly understood. This review covers experimental and simulation methods, highlighting Direct Simulation Monte Carlo and extended hydrodynamics for future applications.
Area of Science:
- Fluid dynamics
- Non-equilibrium phenomena
- Computational physics
Background:
- Non-equilibrium fluid flows are critical for emerging technologies like high-speed aerodynamics and microfluidic devices.
- Current understanding and experimental/simulation capabilities for these flows are limited, hindering technological advancement.
Purpose of the Study:
- To review recent advancements in experimental techniques and modeling methods for non-equilibrium gas flows.
- To present new computational results for hypersonic and microsystem flows.
- To discuss future applications and developments in numerical tools for non-equilibrium flows.
Main Methods:
- Review of experimental techniques for non-equilibrium flows.
- Computational investigations using Direct Simulation Monte Carlo (DSMC) method.
- Computational investigations using extended hydrodynamics.
Main Results:
- DSMC provides excellent results and is widely adopted for non-equilibrium flow simulations.
- Extended hydrodynamics, though less developed, shows promise for complex future simulations.
- New computational results for hypersonic and microsystem flows were obtained.
Conclusions:
- Further development of experimental and simulation methods is essential for advancing technologies reliant on non-equilibrium fluid dynamics.
- Extended hydrodynamics presents a promising avenue for future complex flow simulations.
- The reviewed methods have broad applicability across various scientific and engineering domains.
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