Journal ArticleDOI
Expanded analogy between Boltzmann kinetic theory of fluids and turbulence
TLDR
In this article, the effects of turbulent fluctuations have a striking resemblance to those of microscale (thermal) fluctuations in laminar flows, even to higher order in the Knudsen number.Abstract:
We demonstrate that the effects of turbulent fluctuations have a striking resemblance to those of microscale (thermal) fluctuations in laminar flows, even to higher order in the Knudsen number. This suggests that there may be a good basis for understanding turbulence in terms of Boltzmann kinetic theory. If so, turbulence may be better described in terms of ‘mixing times’ rather than the more classical ‘mixing lengths’. Comparisons are made to Reynolds-stress turbulence models.read more
Citations
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From Exterior Wind Noise Loads to Interior Cabin Noise: A Validation Study of a Generic Automotive Vehicle
Barbara Neuhierl,Sivapalan Senthooran,Reinier Toppinga,Anke Jäger,Maarten Brink,Timo Lemke,Philippe Moron,L.A.Raghu Mutnuri +7 more
Proceedings ArticleDOI
Optimization of Aerodynamics and Engine Cooling Performance of a JMC Mid-Size Truck using Simulation
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The new direction of computational fluid dynamics and its application in industry
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References
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Journal ArticleDOI
The numerical computation of turbulent flows
Brian Launder,D. B. Spalding +1 more
TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
Book
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Small amplitude processes in charged and neutral one-component systems
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Journal ArticleDOI
Development of turbulence models for shear flows by a double expansion technique
TL;DR: In this article, a two-equation model and Reynolds stress transport model are developed for turbulent shear flows and tested for homogeneous shear flow and flow over a backward facing step.
Journal ArticleDOI
The Mathematical Theory of Non-Uniform Gases
TL;DR: Chapman and Cowling as mentioned in this paper showed that the ultimate scope of the descendent of the kinetic theory of gases must be the whole field of the properties of matter in bulk, derived from the atomic constitution of matter and from properties of atoms and their interactions.