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81.
A diffusion-inertia model for predicting dispersion and deposition of low-inertia particles in turbulent flows 总被引:1,自引:0,他引:1
L.I. Zaichik N.I. Drobyshevsky A.S. Filippov R.V. Mukin V.F. Strizhov 《International Journal of Heat and Mass Transfer》2010,53(1-3):154-162
The objective of the paper is twofold: (i) to present a model (the so-called diffusion-inertia model) for predicting dispersion and deposition of aerosol particles in two-phase turbulent flows and (ii) to examine the performance of this model as applied to the flows in straight ducts and circular bends. The model predictions compare reasonable well with both experimental data and Lagrangian tracking simulations coupled with fluid DNS or LES. 相似文献
82.
Anatoly A. Shatalov Helena Pereira 《Chemical engineering journal (Lausanne, Switzerland : 1996)》2009,155(1-2):380-387
Polyoxometalate (POM) catalyzed ozonation of chemical pulps in organic solvent media was found to be particularly effective and selective environmentally benign bleaching approach providing a way for substantial increase in pulp brightness, viscosity and degree of delignification in comparison with other ozone-based bleaching techniques. A series of tested low-boiling polar aprotic and protic organic solvents showed a well-defined capacity for ozonation improvement in the presence of Keggin-type heteropolyanion [PMo7V5O40]8− (HPA-5). Even moderate solvent proportion of 6% (w/w) in the reaction solution caused additional gain in brightness up to 3.4% ISO with simultaneous increase in pulp viscosity up to 8.8% and lignin removal up to 18.9% after HPA-5 catalyzed ozonation (0.8% O3; 0.5 mM HPA), as compared with the control solvent-free process. An aqueous acetone solution was found to be the preferred reaction medium in terms of pulp brightening and delignification. Under optimized conditions, the POM-catalyzed ozonation of eucalypt kraft pulp in acetone/water solution showed remarkable brightness improvement by 15.1% ISO with additional lignin removal by 39.4% and increase in intrinsic viscosity by 3% in comparison with pulp bleached in water media. 相似文献
83.
Tel'pukhovskii N. A. Khrustalev Yu. P. Kurysheva L. N. Filippov M. I. 《Measurement Techniques》1986,29(2):99-100
Measurement Techniques - 相似文献
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86.
Wedging of an isotropic linear viscoelastic space with crack by a rigid semi-infinite indentor is studied. The wedge is assumed to have growing with time thickness. An analysis is done in the framework of generalised Dugdale model and COD criterion using Volterra's principle. The results for safe wedge growth law as well as for the crack growth are obtained. 相似文献
87.
Sergey N. Gorodsky Lev G. Bruk Alexandra E. Istomina Anatoly V. Kurdiukov Oleg N. Temkin 《Topics in Catalysis》2009,52(6-7):557-562
This article dedicated to study of few oscillating reactions in homogeneous systems. The experimental data and preliminary mechanism are reported. The authors affirm they find new type of oscillating processes—the reactions of carbonylation. 相似文献
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89.
For the example of the simplest two-component model, the mechanism of heat and mass transfer in a saturated porous medium when oscillations are imposed is considered.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 48, No. 2, pp. 224–230, February, 1985. 相似文献
90.