Refinement of turbulent flow velocity characteristics
نویسندگان
چکیده
منابع مشابه
Effect of Surface Roughness on Small-Scale Velocity and Scalar Characteristics in a Turbulent Channel Flow
Using DNS data in a turbulent channel flow, the paper examines the effect of the surface geometry on the vorticity and (passive) scalar gradient vectors at a relatively small Reynolds number and for a molecular Prandtl number of 1. While a strong correlation between these two vector fields is expected close to the wall when the latter is smooth, significant changes occur when the surface is mod...
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چکیده ندارد.
15 صفحه اولCharacteristics of Momentum Sources and Sinks in Turbulent Channel Flow
The wall-normal gradient of Reynolds shear stress, denoted ∂T+/∂y+, may be thought of as a momentum source or sink term (depending on its sign). This quantity represents a critical driver of the dynamics of wall-turbulence that give rise to the mean velocity distribution. While there have been a number of studies concerning the statistics of ∂T+/∂y+, there remains much to discover regarding the...
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ژورنال
عنوان ژورنال: Magazine of Civil Engineering
سال: 2013
ISSN: 2071-4726,2071-0305
DOI: 10.5862/mce.41.4