Search Results - "Gamezo, Vadim N"

Origins of the deflagration-to-detonation transition in gas-phase combustion by Oran, Elaine S., Gamezo, Vadim N.

“…This paper summarizes a 10-year theoretical and numerical effort to understand the deflagration-to-detonation transition (DDT). To simulate DDT from first…”
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Flame acceleration and transition to detonation in an array of square obstacles by Ogawa, Takanobu, Gamezo, Vadim N., Oran, Elaine S.

“…We study flame acceleration and DDT in a two-dimensional staggered array of square obstacles by solving the compressible multidimensional reactive…”
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A unified mechanism for unconfined deflagration-to-detonation transition in terrestrial chemical systems and type Ia supernovae by Poludnenko, Alexei Y, Chambers, Jessica, Ahmed, Kareem, Gamezo, Vadim N, Taylor, Brian D

“…The nature of type Ia supernovae (SNIa)-thermonuclear explosions of white dwarf stars-is an open question in astrophysics. Virtually all existing theoretical…”
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Three-dimensional Delayed-Detonation Model of Type Ia Supernovae by Gamezo, Vadim N, Khokhlov, Alexei M, Oran, Elaine S

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Flame acceleration and DDT in channels with obstacles: Effect of obstacle spacing by Gamezo, Vadim N., Ogawa, Takanobu, Oran, Elaine S.

“…We study flame acceleration and deflagration-to-detonation transition (DDT) in obstructed channels using 2D reactive Navier–Stokes numerical simulations. The…”
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The evolution of pressure gain in turbulent fast flames by Chin, Hardeo M., Chambers, Jessica, Sosa, Jonathan, Poludnenko, Alexei, Gamezo, Vadim N., Ahmed, Kareem A.

“…This research quantifies the evolution of pressure for fast burning regimes characterized by various degrees of compressibility and involving turbulent flames…”
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Formation and evolution of two-dimensional cellular detonations by Gamezo, Vadim N., Desbordes, Daniel, Oran, Elaine S.

“…This paper reports the results of numerical simulations of cellular detonations generated by using numerical noise as a source of initial fluctuations imposed…”
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The influence of shock bifurcations on shock-flame interactions and DDT by GAMEZO, Vadim N, KHOKHLOV, Alexei M, ORAN, Elaine S

“…Time-dependent, multidimensional, reactive Navier-Stokes fluid-dynamics simulations are used to examine the effects of bifurcated shock structures on…”
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Numerical simulations of flame propagation and DDT in obstructed channels filled with hydrogen–air mixture by Gamezo, Vadim N., Ogawa, Takanobu, Oran, Elaine S.

“…We study flame acceleration and deflagration-to-detonation transition (DDT) in channels with obstacles using 2D and 3D reactive Navier–Stokes numerical…”
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Deflagration-to-detonation transition in natural gas–air mixtures by Zipf, Richard K., Gamezo, Vadim N., Mohamed, Khaled M., Oran, Elaine S., Kessler, David A.

“…The gas explosion test facility (GETF) previously used to study detonability of natural gas (NG)–air mixtures was modified for studies of flame acceleration…”
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Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications by Gamezo, Vadim N., Khokhlov, Alexei M., Oran, Elaine S., Chtchelkanova, Almadena Y., Rosenberg, Robert O.

“…Large-scale, three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a…”
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Deflagrations and detonations in thermonuclear supernovae by Gamezo, Vadim N, Khokhlov, Alexei M, Oran, Elaine S

“…We study a type Ia supernova explosion using three-dimensional numerical simulations based on reactive fluid dynamics. We consider a delayed-detonation model…”
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Transverse waves resulting from pulsating instability of two-dimensional flames by Gamezo, Vadim N., Poludnenko, Alexei Y., Oran, Elaine S., Williams, Forman A.

“…We present results of fully compressible Navier–Stokes simulations of pulsating flame instabilities in two dimensions using single-step, first-order Arrhenius…”
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Detonability of natural gas–air mixtures by Gamezo, Vadim N., Zipf, R. Karl, Sapko, Michael J., Marchewka, Walter P., Mohamed, Khaled M., Oran, Elaine S., Kessler, David A., Weiss, Eric S., Addis, James D., Karnack, Frank A., Sellers, Donald D.

“…Direct initiation experiments were carried out in a 105 cm diameter tube to study detonation properties and evaluate the detonability limits for mixtures of…”
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Flame acceleration and DDT in large-scale obstructed channels filled with methane-air mixtures by Gamezo, Vadim N., Bachman, Christian L., Oran, Elaine S.

“…We study the evolution of premixed methane-air flames in large-scale obstructed channels using reactive CFD simulations. We vary the channel height d, the…”
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Compressible turbulent flame speeds of highly turbulent standing flames by Sosa, Jonathan, Chambers, Jessica, Ahmed, Kareem A., Poludnenko, Alexei, Gamezo, Vadim N.

“…In this paper we present the first measurement of turbulent burning velocities of a highly turbulent compressible standing flame induced by shock-driven…”
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Reaction-zone structure of a steady-state detonation wave in a cylindrical charge by Gamezo, Vadim N., Oran, Elaine S.

“…This paper reports numerical simulations of the structure of the reaction zone and adjoining flow of a steady-state two-dimensional detonation wave in an…”
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Three-dimensional delayed-detonation model of type ia supernovae by GAMEZO, Vadim N, KHOKHLOV, Alexei M, ORAN, Elaine S

“…We study a Type Ia supernova explosion using large-scale three-dimensional numerical simulations based on reactive fluid dynamics with a simplified mechanism…”
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Numerical study on flame acceleration and DDT in an inclined array of cylinders using an AMR technique by Ogawa, Takanobu, Oran, Elaine S., Gamezo, Vadim N.

“…► We numerically study flame acceleration and DDT in an inclined array of cylinders. ► A solver for the reactive Navier–Stokes equations is developed using an…”
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A Unified Mechanism for Unconfined Deflagration-to-Detonation Transition in Terrestrial Chemical Systems and Type Ia Supernovae by Poludnenko, Alexei Y, Chambers, Jessica, Ahmed, Kareem, Gamezo, Vadim N, Taylor, Brian D

“…Science, 01 Nov 2019, Vol. 366, Issue 6465, eaau7365 The nature of type Ia supernovae (SNIa) - thermonuclear explosions of white dwarf stars - is an open…”
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