Advances in Combustion Science: In Honor of Ya. B. by W. Sirignano, A. Merzhanov, L. De Luca

By W. Sirignano, A. Merzhanov, L. De Luca

Authored through the most prestigious foreign researchers, this ebook comprises 21 papers that tackle 5 common catagories of combustion technology: flame concept, heterogeneous combustion, unsteady and mobile combustion, turbulent combustion, and explosions and detonations. The ebook is devoted to Yakov B. Zel'dovich, an eminent researcher recognized for his theoretical works on combustion and detonation, who served because the first Chairman of the clinical Council of the Academy of Sciences of the USSR. the 1st 5 papers supply a viewpoint of the advancements in flame concept, and the serious position that Zel'dovich performed in them. the second one part examines the problems of heterogeneous combustion and the hot advances within the box. The 3rd part addresses fabric facing unsteady mobile combustion, and the fourth investigates turbulent combustion. the ultimate part treats the topic of detonations and explosions.

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Extra info for Advances in Combustion Science: In Honor of Ya. B. Zel'dovich (Progress in Astronautics and Aeronautics)

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Finally, it should be remarked that progress is being made on reduced chemistry for describing hydrogen and hydrocarbon flame inhibition by halogen-containing species and for predicting production of pollutants such as oxides of nitrogen in flames. A preliminary attempt32 at including the "prompt" mechanisms for NO production in flames (which involves elementary steps such as CH + N2 —>> HCN 4- N and which is now known to be quite important in hydrocarbon diffusion flames) along with the Zel'dovich mechanism, in an effectively one-step reduced-chemistry description of the pollutant formation, is now being corrected, in unpublished work, to provide a firm basis for estimating emission indices of NO in a wide variety of flames.

13 Drozdov, N. , and Zel'dovich, Ya. , "Diffusion Phenomena at the Limit of Flame Propagation: An Experimental Study of the Inhibition of Explosive Mixtures of Carbon Monoxide," Zhurnal Fizicheskoi Khimii, Vol. 17, No. 3, 1943, pp. 134-144. 14 Zel'dovich, Ya. , Theory of Combustion and Detonation of Gases, Izd-vo Akademii Nauk SSSR, Moscow, 1944. 15 Barenblatt, G. , Zel'dovich, Ya. , and Istratov, A. , "On the Diffusional-Thermal Stability of Laminar Flames," Zhurnal Prikladnoi Mekhaniki i Teknischeskoi Fiziki, No.

45, of K. Seshadri and J. Gottgens reported in Ref. 46 and of M. Bui-Pham et al. in Ref. 47, and according to numerical integrations reported in Ref. 46. 866456 COMBUSTION THEORY 27 Rate-ratio asymptotics has now also been applied to premixed methanol-air50 and hydrogen-air51 flames, for example. Corresponding treatments of flames of higher alkanes in air, starting from full detailed chemistry, soon will appear. Most of these studies are first attempts, with improvements expected to follow. There is intensive activity in asymptotic analyses of structures of premixed flames, and many more advances of this topic will occur.

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