Visualization of self-ignition regimes in hydrogen-air mixtures under shock waves focusing

Boris E. Gelfand; Sergei V. Khomik; Sergei P. Medvedev; Hans Groenig; Herbert Olivier

doi:10.1117/12.424343

17 April 2001 Visualization of self-ignition regimes in hydrogen-air mixtures under shock waves focusing

Boris E. Gelfand, Sergei V. Khomik, Sergei P. Medvedev, Hans Groenig, Herbert Olivier

Proceedings Volume 4183, 24th International Congress on High-Speed Photography and Photonics; (2001) https://doi.org/10.1117/12.424343
Event: 24th International Congress on High-Speed Photography and Photonics, 2000, Sendai, Japan

Abstract

The investigation of self-ignition dynamics followed by combustion has an essential significance for the organization of working cycle in internal combustion engines. The parameters of the process are influenced by the geometry of reactive volume, specific features of the generation of heat release centers, as well as gas-dynamics consequences of the propagation of chemical reaction fronts (formation of the pressure and/or shock waves in reactive volume). Registration of explosive processes using pressure transducers does not provide sufficient information on the localization and dynamics of self-ignition centers. Also unacceptable are the standard radiation detectors due to distortions connected with scattering. Two variants of visualization of the phenomena accompanying self-ignition hydrogen-containing combustible mixtures now are used: (1) Cranz - Schardin spark chamber and (2) powerful laser light source and projection of the image to a film located inside the rotating mirror chamber. In the present work the results of the application of two above- mentioned variants of visualization for the self-ignition investigation are presented.

Citation Download Citation

Boris E. Gelfand, Sergei V. Khomik, Sergei P. Medvedev, Hans Groenig, and Herbert Olivier "Visualization of self-ignition regimes in hydrogen-air mixtures under shock waves focusing", Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); https://doi.org/10.1117/12.424343

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