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On Velocity-Conditioned Scalar Mixing In Homogeneous Turbulence, Rodney O. Fox
On Velocity-Conditioned Scalar Mixing In Homogeneous Turbulence, Rodney O. Fox
Rodney O. Fox
Scalar mixing models are required to modelturbulent molecular mixing in full probability density function (pdf) simulations of turbulent reacting flows. Despite the existence of direct numerical simulation (DNS) data suggesting the contrary, most scalar mixing models assume that molecular mixing is independent of the instantaneous velocity, i.e., 〈D∇2φ|V,ψ〉=〈D∇2φ|ψ〉. Since in a joint velocity, composition pdf calculation the velocity is known, this assumption is unnecessary and leads to a lack of local isotropy in the scalar field. Moreover, since velocity conditioning offers a numerically tractable approach for including the effects of local anisotropy and mean velocity gradients on scalar mixing, it …
Error In The Calculation Of Synchronized Spontaneous Otoacoustic Emission Frequencies Measured With The Ilo88 System, Jacek Smurzynski, Rudolf Probst
Error In The Calculation Of Synchronized Spontaneous Otoacoustic Emission Frequencies Measured With The Ilo88 System, Jacek Smurzynski, Rudolf Probst
Jacek Smurzynski
No abstract provided.
Xrd, Xps And Sims Investigations On Electrodeposited Nickel-Phosphorous Alloy Coatings
Xrd, Xps And Sims Investigations On Electrodeposited Nickel-Phosphorous Alloy Coatings
A.S. Md Abdul Haseeb
Structural and chemical investigations on electrodeposited nickel-phosphorous alloy coatings by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectroscopy (SIMS) are described. Electrodeposition of nickel-phosphorous coatings has been carried out galvanostatically in a hypophosphite bath at two different current densities, namely 20 and 80 mA cm -2. XRD has shown a broad peak indicating an amorphous structure in both cases. XPS shows the presence of Ni 2P compound. XPS also reveals the amount of phosphorous in both coatings to be around 10.20 wt.%. SIMS has shown that the coating deposited at lower current density (20 mA cm …
Lai - Introduction To Continuum Mechanics ترجمه فارسي کتاب مکانيک محيط پيوسته ويرايش سوم, Dr Alireza Zolfaghari
Lai - Introduction To Continuum Mechanics ترجمه فارسي کتاب مکانيک محيط پيوسته ويرايش سوم, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
A Mixing Model To Improve The Pdf Simulation Of Turbulent Diffusion Flames, A. R. Masri, Shankar Subramaniam, S. B. Pope
A Mixing Model To Improve The Pdf Simulation Of Turbulent Diffusion Flames, A. R. Masri, Shankar Subramaniam, S. B. Pope
Shankar Subramaniam
A new mixing model based on Euclidean minimum spanning trees (EMST), which has been developed by Subramaniam and Pope, is used in the PDF simulation of pilot-stabilized turbulent non-premixed flames. a model equation is solved for the joint PDF of velocity composition and turbulence frequency using a particle mesh method.