Results 11 to 20 of about 30,233 (313)
Diffusing Diffusivity: A Model for Anomalous, yet Brownian, Diffusion [PDF]
Physical Review Letters, 2014 Wang et al. [Proc. Natl. Acad. Sci. U.S.A. 106, 15160 (2009)] have found that in several systems the linear time dependence of the mean-square displacement (MSD) of diffusing colloidal particles, typical of normal diffusion, is accompanied by a non-Gaussian displacement distribution G(x,t), with roughly exponential tails at short times, a situation ...
Mykyta V, Chubynsky, Gary W, Slater
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Diffusing diffusivity: Rotational diffusion in two and three dimensions [PDF]
The Journal of Chemical Physics, 2017 We consider the problem of calculating the probability distribution function (pdf) of angular displacement for rotational diffusion in a crowded, rearranging medium. We use the diffusing diffusivity model and following our previous work on translational diffusion [R. Jain and K. L. Sebastian, J. Phys. Chem. B 120, 3988 (2016)], we show that the problem
Rohit, Jain, K L, Sebastian
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Diffusion, Self-Diffusion and Cross-Diffusion
Journal of Differential Equations, 1996 The following system, which determines steady-state solutions for a corresponding parabolic system, is considered: \[ \begin{aligned} \Delta[(d_1+\alpha_{11}u_1+\alpha_{12}u_2)u_1] &+u_1(a_1-b_1u_1-c_1u_2)=0,\\ \Delta[(d_2+\alpha_{21}u_1+\alpha_{22}u_2)u_2] &+u_2(a_2-b_2u_1-c_2u_2)=0\quad\text{in }\Omega,\end{aligned} \] \[ {\partial u_1\over\partial ...
Lou, Yuan, Ni, Wei-Ming
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Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump [PDF]
, 2013 Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller
DAZIN, Antoine +4 more
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Upgrading a Shrouded Wind Turbine with a Self-Adaptive Flanged Diffuser
Energies, 2015 In this paper, a self-adaptive flange is proposed for the wind turbine shrouded by a flanged diffuser to reduce the wind loads acting on the flanged diffuser at high wind velocities.
Jun-Feng Hu, Wen-Xue Wang
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РАЗГОН И ТОРМОЖЕНИЕ ГАЗОВОГО ПОТОКА ПРИ РАЗЛИЧНЫХ ВОЗДЕЙСТВИЯХ НА НЕГО
Cifra: Машиностроение, 2023 Рассмотрены воздействия на газовый поток при его движении в элементах конструкции авиационных двигателей летательных аппаратов. Представлены возможные воздействия на поток, среди которых геометрическое, расходное, тепловое, механическое воздействия и ...
Емельянов Д.А. +1 more
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Diffusion curves with diffusion coefficients
Computational Visual Media, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongwei Lin, Jingning Zhang, Chenkai Xu
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A study of off-design performance improvement for a centrifugal refrigerant compressor
Advances in Mechanical Engineering, 2017 This study numerically investigates the effects of changing vaned diffuser angles and vaneless diffuser widths of a two-stage centrifugal refrigerant compressor on the reduction of surge flow rate and the improvement of part-load performance.
Kuo-Shu Hung +3 more
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Applied Computer Systems, 2022 The study aims to develop an information-computing complex for computer design of a centrifugal compressor with parallel calculation of stages and optimization of the geometric parameters of the impellers and the diffusers. The paper presents a universal
Ben Nengjun +6 more
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Diffusion representations [PDF]
Applied and Computational Harmonic Analysis, 2018 Diffusion Maps framework is a kernel based method for manifold learning and data analysis that defines diffusion similarities by imposing a Markovian process on the given dataset. Analysis by this process uncovers the intrinsic geometric structures in the data.
Moshe Salhov +3 more
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