000013861 001__ 13861
000013861 005__ 20161115094003.0
000013861 04107 $$aeng
000013861 046__ $$k2016-08-21
000013861 100__ $$aTeng, Honghui
000013861 24500 $$aInitiation characteristics of oblique detonation waves in hydrogen-air mixture

000013861 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013861 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013861 506__ $$arestricted
000013861 520__ $$2eng$$aThe initiation features of two-dimensional, oblique detonations from a wedge in a stoichiometric hydrogen-air mixture are investigated via numerical simulations using the reactive Euler equations with detailed chemistry. A parametric study is performed to analyze the effect of inflow pressure P0, and Mach number M0 on the initiation structure and length. Quantitatively the initiation length decreases with increasing M0, primarily due to the increase of post-shock temperature. The effect of M0 on initiation length is independent of P0, but given the same M0, the length is found to be inversely proportional to P0. Theoretical analysis based on the constant volume combustion (CVC) theory is also performed, which are close to the numerical simulations in the case of high M0 regardless of P0, demonstrating that temperature is the key parameter affecting the initiation. Decreasing M0, the CVC theory breaks down, suggesting a switch from chemical kinetics-controlled to a wave-controlled gasdynamic process.

000013861 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013861 653__ $$a

000013861 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013861 720__ $$aTeng, Honghui
000013861 8560_ $$ffischerc@itam.cas.cz
000013861 8564_ $$s130253$$uhttps://invenio.itam.cas.cz/record/13861/files/PO.FM03-2.06.6.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 643, code PO.FM03-2.06.6).
000013861 962__ $$r13812
000013861 980__ $$aPAPER