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DNS of hydrogen impinging jets at different nozzle-plate distances

DNS of hydrogen impinging jets at different nozzle-plate distances
DNS of hydrogen impinging jets at different nozzle-plate distances
Hydrogen nonpremixed impinging jets at difference nozzle-plate distances were examined using results obtained from direct numerical simulation (DNS) with flamelet generated manifold (FGM) chemistry. The Reynolds number used was Re=2000. The results presented were obtained for two different nozzle-plate distances of 4 and 8 jet nozzle diameters. The three-dimensional simulations clearly show the effects of nozzle-plate distances on flame temperature and thus wall heat transfer, which is critical for the design of combustors for hydrogen combustion. Results reported here also indicate that the preferential diffusion affects flame temperature and species mass fraction distributions. Moreover, the unsteady fluctuations of species profiles in the wall jet region characterise the complexity of the distributions of compositional structures in the near-wall region.
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Luo, K.H.
1c9be6c6-e956-4b12-af13-32ea855c69f3
Jiang, X
69bfa956-bad2-4c93-b007-7c2392ffbbdc
van Oijen, J.A
57e7e907-4a20-4c77-be43-b3722516ea7f
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Luo, K.H.
1c9be6c6-e956-4b12-af13-32ea855c69f3
Jiang, X
69bfa956-bad2-4c93-b007-7c2392ffbbdc
van Oijen, J.A
57e7e907-4a20-4c77-be43-b3722516ea7f

Ranga Dinesh, K.K.J., Luo, K.H., Jiang, X and van Oijen, J.A (2013) DNS of hydrogen impinging jets at different nozzle-plate distances. 6th European Combustion Meeting (ECM 2013), Lund, Sweden. 24 - 27 Jun 2013. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Hydrogen nonpremixed impinging jets at difference nozzle-plate distances were examined using results obtained from direct numerical simulation (DNS) with flamelet generated manifold (FGM) chemistry. The Reynolds number used was Re=2000. The results presented were obtained for two different nozzle-plate distances of 4 and 8 jet nozzle diameters. The three-dimensional simulations clearly show the effects of nozzle-plate distances on flame temperature and thus wall heat transfer, which is critical for the design of combustors for hydrogen combustion. Results reported here also indicate that the preferential diffusion affects flame temperature and species mass fraction distributions. Moreover, the unsteady fluctuations of species profiles in the wall jet region characterise the complexity of the distributions of compositional structures in the near-wall region.

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Published date: 25 June 2013
Venue - Dates: 6th European Combustion Meeting (ECM 2013), Lund, Sweden, 2013-06-24 - 2013-06-27
Organisations: Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 369784
URI: http://eprints.soton.ac.uk/id/eprint/369784
PURE UUID: f9854fe3-aa23-4744-b93e-a0d38b0bd4cc
ORCID for K.K.J. Ranga Dinesh: ORCID iD orcid.org/0000-0001-9176-6834

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Date deposited: 07 Oct 2014 14:22
Last modified: 11 Jul 2020 00:34

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Contributors

Author: K.H. Luo
Author: X Jiang
Author: J.A van Oijen

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