Header menu link for other important links
X
Turbulence modeling from a new perspective
Published in
2010
Volume: 11
   
Issue: 1
Pages: 39 - 54
Abstract
In this work we establish a link between a Reynolds averaged turbulence modeling methodology, containing interactions up to the second order correlations between the velocity fluctuations at various scales, and a multi-objective optimization problem with the constraints expressed in terms of equality and inequality, imposed by the given boundary conditions and the positive semi-definiteness of the Reynolds stress tensor, etc. The information unavailability and uncertainty associated with the boundary conditions for the fluctuation correlations of various orders is delineated, and the information from the Navier-Stokes equations is utilized to the extent allowed by the available input data necessary for simulations; turbulence from the perspective of systems simulation is explored and some objective functions are proposed. Finally, the challenges faced by the formulation and the issues yet to be resolved are discussed. © 2009.
About the journal
JournalNonlinear Analysis: Real World Applications
ISSN14681218
Open AccessNo
Concepts (17)
  •  related image
    Information
  •  related image
    Input datas
  •  related image
    Multi-objective optimization problem
  •  related image
    MULTI-SCALE SIMULATION
  •  related image
    Objective functions
  •  related image
    REYNOLDS AVERAGE
  •  related image
    Reynolds averaged
  •  related image
    REYNOLDS STRESS TENSORS
  •  related image
    Second orders
  •  related image
    SYSTEMS SIMULATION
  •  related image
    Turbulence modeling
  •  related image
    Velocity fluctuations
  •  related image
    Boundary conditions
  •  related image
    Navier stokes equations
  •  related image
    Reynolds number
  •  related image
    Turbulence
  •  related image
    Multiobjective optimization