Partially-averaged Navier-Stokes model for turbulence: A Reynolds-averaged Navier-Stokes to direct numerical simulation bridging method Conference Paper

abstract

• A turbulence bridging method purported for any filter-width or scale resolutionfully averaged to completely resolvedis developed. The method is given the name partially averaged Navier-Stokes (PANS) method. In PANS, the model filter width (extent of partial averaging) is controlled through two parameters: the unresolved-to-total ratios of kinetic energy (fk) and dissipation (f). The PANS closure model is derived formally from the Reynolds-averaged Navier-Stokes (RANS) model equations by addressing the following question: if RANS represents the closure for fully averaged statistics, what is the corresponding closure for partially averaged statistics? The PANS equations vary smoothly from RANS equations to Navier-Stokes (direct numerical simulation) equations, depending on the values of the filter-width control parameters. Preliminary results are very encouraging.

authors

• Girimaji, Sharath

published proceedings

• JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME

altmetric score

• 0.25

author list (cited authors)

• Girimaji, S. S.

citation count

• 361

complete list of authors

• Girimaji, SS

publication date

• May 2006

publisher

• ASME International  Publisher

published in

• Journal of Applied Mechanics, Transactions ASME  Journal

keywords

• 40 Engineering
• 4007 Control Engineering, Mechatronics And Robotics
• 4012 Fluid Mechanics And Thermal Engineering

Digital Object Identifier (DOI)

• 10.1115/1.2151207

start page

• 413

end page

• 421

volume

• 73

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1115%2F1.2151207