000014462 001__ 14462
000014462 005__ 20161115100152.0
000014462 04107 $$aeng
000014462 046__ $$k2016-08-21
000014462 100__ $$aRadulescu, Matei
000014462 24500 $$aDynamics of gaseous detonations with global mass divergence

000014462 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014462 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014462 506__ $$arestricted
000014462 520__ $$2eng$$aThe dynamics of detonation waves in arbitrary geometries can be modeled by the deil-Stewart DSD framework, provided a relation is known relating the shock speed dependence on geometric mass divergence behind the shock. We propose a novel test geometry which permits to establish such a dependence unambiguously for gas phase detonations. It is shown that channels with an exponentially increasing cross-section provide a constant mass divergence and a steady front speed below the CJ value. We find that predictions of the wave speed using the classical ZND model do not agree with experiment, unless much lower effective activation energies are used, consistent with previous observations in regards to the hydrodynamic structure of cellular detonations.

000014462 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014462 653__ $$a

000014462 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014462 720__ $$aRadulescu, Matei
000014462 8560_ $$ffischerc@itam.cas.cz
000014462 8564_ $$s171411$$uhttps://invenio.itam.cas.cz/record/14462/files/TS.FM03-1.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 591, code TS.FM03-1.04
.
000014462 962__ $$r13812
000014462 980__ $$aPAPER