Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Alex Krisman"'
Publikováno v:
Combustion and Flame. 225:349-363
The safe operation of aeronautical engines requires an understanding of flame ignition, propagation and extinction. In this study, direct numerical simulations are performed using a 29 species reduced chemical mechanism for jet fuel surrogate Jet A t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9e818eac2e7b0c4ce382c85b5e82c88
https://doi.org/10.1016/j.combustflame.2020.11.003
https://doi.org/10.1016/j.combustflame.2020.11.003
Publikováno v:
Proceedings of the Combustion Institute. 37:4787-4795
The ignition process in diesel engines is highly complex and incompletely understood. In the present study, two-dimensional direct numerical simulations are performed to investigate the ignition dynamics and their sensitivity to thermochemical and mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a13df614abd91c807247b74eb07efa
https://doi.org/10.1016/j.proci.2018.08.026
https://doi.org/10.1016/j.proci.2018.08.026
Autor:
John B. Bell, Deepak K. Dalakoti, Evatt R. Hawkes, Bruno Savard, Armin Wehrfritz, Alex Krisman, Marc Day, Haiou Wang
Publikováno v:
Proceedings of the Combustion Institute. 37:1961-1969
We investigate the influence of inflow velocity (Vin) and scalar dissipation rate (χ) on the flame structure and stabilisation mechanism of steady, laminar partially premixed n-dodecane edge flames stabilised on a convective mixing layer. Numerical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f6e8c032d7c7b18ac2377761567b22c
https://doi.org/10.1016/j.proci.2018.06.169
https://doi.org/10.1016/j.proci.2018.06.169
Publikováno v:
Combustion and Flame. 195:183-202
We present a direct numerical simulation of a temporal jet between n-dodecane and diluted air undergoing spontaneous ignition at conditions relevant to low-temperature diesel combustion. The jet thermochemical conditions were selected to result in tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24455cd1d7cb5e2e609b4ab40cbfac33
https://doi.org/10.1016/j.combustflame.2018.02.020
https://doi.org/10.1016/j.combustflame.2018.02.020
Publikováno v:
Combustion and Flame. 188:399-411
The laminar flame speed sl is an important reference quantity for characterising and modelling combustion. Experimental measurements of laminar flame speed require the residence time of the fuel/air mixture (τf) to be shorter than the autoignition d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5122b22eef1cadf8404f59c6555afc82
https://doi.org/10.1016/j.combustflame.2017.09.012
https://doi.org/10.1016/j.combustflame.2017.09.012
Publikováno v:
Journal of Fluid Mechanics. 824:5-41
A three-dimensional direct numerical simulation is conducted for a temporally evolving planar jet of n-heptane at a pressure of 40 atmospheres and in a coflow of air at 1100 K. At these conditions, n-heptane exhibits a two-stage ignition due to low-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb1697a87a7b102130ba47887d316988
https://doi.org/10.1017/jfm.2017.282
https://doi.org/10.1017/jfm.2017.282
Publikováno v:
Proceedings of the Combustion Institute. 36:3567-3575
In diesel engines, combustion is initiated by a two-staged autoignition that includes both low- and high-temperature chemistry. The location and timing of both stages of autoignition are important parameters that influence the development and stabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0207d30dee621f94815662b97cd62d22
https://doi.org/10.1016/j.proci.2016.08.043
https://doi.org/10.1016/j.proci.2016.08.043
Publikováno v:
Fire Safety Journal. 120:103089
Large-scale tests were conducted to understand the burning process of thermoplastic high-density polyethylene pallets, a representative commodity in warehouse fire scenarios. Large-scale experiments of two stacks of eight plastic pallets showed that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4584fc45c2b9c78bfad53078a12ca09
https://doi.org/10.1016/j.firesaf.2020.103089
https://doi.org/10.1016/j.firesaf.2020.103089
Publikováno v:
Combustion and Flame. 172:326-341
With the goal of providing a more detailed fundamental understanding of ignition processes in diesel engines, this study reports analysis of a direct numerical simulation (DNS) database. In the DNS, a pseudo turbulent mixing layer of dimethyl ether (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42884a1f36866bc42ea2141117797f02
https://doi.org/10.1016/j.combustflame.2016.06.010
https://doi.org/10.1016/j.combustflame.2016.06.010
Autor:
Raghu Sivaramakrishnan, Alex Krisman, James A. Miller, Jacqueline H. Chen, Christine Mounaïm-Rousselle
Publikováno v:
Proceedings of the Combustion Institute
Proceedings of the Combustion Institute, Elsevier, 2018
Proceedings of the Combustion Institute, Elsevier, 2018
Laminar natural gas flames are investigated at engine-relevant thermochemical conditions where the ignition delay time τ is short due to very high ambient temperatures and pressures. At these conditions, it is not possible to measure or calculate we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b70b68a29b21558a350cab8bbc06ce94
https://hal.archives-ouvertes.fr/hal-01945800
https://hal.archives-ouvertes.fr/hal-01945800
