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The Zeldovich Number: A Universal Dimensionless Measure for the Electromagnetic Field
Physics, 2023 In this paper we extend the Zeldovich formula, which was originally derived for the free electromagnetic field and was interpreted as the number of photons. We show that our extended formula gives a universal dimensionless measure of the overall strength
Iwo Bialynicki-Birula +1 more
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Measuring the Mach Number of the Universe via the Sunyaev-Zeldovich Effect [PDF]
The Astrophysical Journal, 2004 We introduce a new statistic to measure more accurately the cosmic sound speed of clusters of galaxies at different redshifts. This statistic is evaluated by cross-correlating cosmic microwave background (CMB) fluctuations caused by the Sunyaev-Zel'dovich effect from observed clusters of galaxies with their redshifts.
Atrio--Barandela, F. +2 more
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On the Number Density of Sunyaev-Zeldovich Clusters of Galaxies [PDF]
The Astrophysical Journal, 2000 If the mean properties of clusters of galaxies are well described by the entropy-driven model, the distortion induced by the cluster population on the blackbody spectrum of the Cosmic Microwave Background radiation is proportional to the total amount of intracluster gas while temperature anisotropies are dominated by the contribution of clusters of ...
Hern'andez-Monteagudo, C. +2 more
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Premixed Combustion in Boundary Layers for Moderate Values of the Zeldovich Numbers [PDF]
Combustion Science and Technology, 1986 The classical problem of the ignition and flame generation of combustible premixed gases by a hot flat pJate is analyzed by asymptotic techniques for moderate values of the Zeldovich numbers. For temperatures of the plate smaller than the adiabatic flame temperature it was found that the corrections to the zeroth-order solution (Zeldovich approximation)
Méndez, F. +2 more
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On the calculation of a model of a three-dimensional turbulent diffusion plume
Современные инновации, системы и технологии, 2022 In this paper a three-dimensional model of diffusion combustion is presented in the case of the outflow of a combustible gas mixture from a rectangular nozzle and propagating in a heated (with a passing) air flow.
Safar Khojiev +2 more
doaj +1 more source
An analytical study of the effects of vaporization of twodimensional laminar droplets on a triple flame [PDF]
Journal of the Serbian Chemical Society, 2011 The structure of triple flame propagation in combustion systems, containing uniformly distributed volatile fuel droplet was analyzed. The analysis was established for a one-step irreversible reaction with an asymptotic limit, where the value of the ...
Bidabadi Mehdi +2 more
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Study of The Vapor Thermo-Compressor to Reduce Energy Consumption in the Sugar Production Line using Computational Fluid Dynamics [PDF]
Journal of Agricultural Machinery, 2020 IntroductionLarge industrial factories often discharge significant quantities of low-pressure steam (dead steam) into the atmosphere, which causes energy losses.
A Rezvanivand fanaei +2 more
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Effect of mole weight ratio of reaction on propagation of cellular detonations
AIP Advances, 2022 The propagation of two-dimensional cellular detonations is investigated numerically using a one-step reversible reaction model. The effect of the average mole weight ratio WB/WA of the product and reactant on the one-dimensional Zeldovich–von Neumann ...
Haoyang Li +3 more
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Mechanical Engineering Journal, 2015 We elucidated the diffusive-thermal instability of premixed flames with low unburned-gas temperature under the adiabatic and non-adiabatic conditions.
Thwe Thwe AUNG, Satoshi KADOWAKI
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Journal of Thermal Science and Technology, 2013 The effects of unburned-gas temperature and heat loss on the diffusive-thermal instability of premixed flames were studied by two-dimensional unsteady calculations of reactive flows, based on the diffusive-thermal model equation, under the conditions of ...
Thwe Thwe Aung, Satoshi KADOWAKI
doaj +1 more source