Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Diffusivities of transferable quantities in turbulent flow with mean velocity distribution
View through CrossRef
The relation between turbulent diffusivities for transferable quantities and the Lagrangian displacement of fluid particles in a flow field with a mean velocity distribution is derived on the assumption of a gradient transport. The turbulent diffusivities in a plane jet and in two interacting plane parallel jets are calculated by using Lagrangian trajectories that have been computed based on a simple model. The results indicate that the mean velocity distribution affects the turbulent transport, and that neglect of this factor can give a fivefold overestimation of the diffusivity in interacting jets.
Title: Diffusivities of transferable quantities in turbulent flow with mean velocity distribution
Description:
The relation between turbulent diffusivities for transferable quantities and the Lagrangian displacement of fluid particles in a flow field with a mean velocity distribution is derived on the assumption of a gradient transport.
The turbulent diffusivities in a plane jet and in two interacting plane parallel jets are calculated by using Lagrangian trajectories that have been computed based on a simple model.
The results indicate that the mean velocity distribution affects the turbulent transport, and that neglect of this factor can give a fivefold overestimation of the diffusivity in interacting jets.
Related Results
Transcranial Doppler Study Among Children with Sickle Cell Anaemia Vs Normal Children
Transcranial Doppler Study Among Children with Sickle Cell Anaemia Vs Normal Children
Introduction: Role of transcranial Doppler in prevention of stroke in sickle cell children has been well appreciated. Studies are being done to develop the protocol in children. Si...
Anisotropic turbulent diffusivities and rotating magnetoconvection problems
Anisotropic turbulent diffusivities and rotating magnetoconvection problems
<p>Earth&#8217;s core Physics inspires the magnetoconvection models. Turbulent state of the core can increase the viscosity, the thermal diffusivity and also ...
Active Flow Control of Separated Turbulent Flow Over a Hump Using RANS, DES, and LES
Active Flow Control of Separated Turbulent Flow Over a Hump Using RANS, DES, and LES
Most practical flows in engineering applications are turbulent, and exhibit separation. Losses due to separation are undesirable because they generally have adverse effects on perf...
Computational study of diffusivities in diamond Ge-Si alloys
Computational study of diffusivities in diamond Ge-Si alloys
A variety of diffusivities in Ge-Si alloys available in the literature were
critically reviewed. On the basis of the critically reviewed literature data,
the diffusion parame...
Diffusion of Corrosion Products of Iron in Compacted Bentonite.
Diffusion of Corrosion Products of Iron in Compacted Bentonite.
ABSTRACTCarbon steel is one of the candidate overpack materials for high-level waste disposal. The corrosion rate of carbon steel is reduced by the presence of buffer materials suc...
Large Eddy Simulations on Fan Shaped Film Cooling Hole With Various Inlet Turbulence Generation Methods
Large Eddy Simulations on Fan Shaped Film Cooling Hole With Various Inlet Turbulence Generation Methods
Abstract
Large eddy simulations on well-known 7-7-7 fan shaped cooling hole have been carried out. Film cooling methods are generally applied to high pressure turbin...
Entropy-based depth-averaged velocity assessment from surface flow velocity
Entropy-based depth-averaged velocity assessment from surface flow velocity
Discharge estimation at a river site depends on local hydraulic conditions identified by recording water levels. In fact, stage monitoring is straightforward and relatively inexpen...
Dynamics of fluid mixing in separated flows
Dynamics of fluid mixing in separated flows
Separated flows at high Re (>103) are highly turbulent. In some situations the turbulence generation and mixing processes associated with flow separation are desirable, e.g....