Home > Research > Publications & Outputs > Direct numerical simulation of nonpremixed syng...

Associated organisational unit

View graph of relations

Direct numerical simulation of nonpremixed syngas burning with detailed chemistry

Research output: Contribution to journalJournal articlepeer-review

Published

Standard

Direct numerical simulation of nonpremixed syngas burning with detailed chemistry. / Ranga Dinesh, K.K.J.; Jiang, Xi; van Oijen, J. A.

In: Fuel, Vol. 107, 05.2013, p. 343-355.

Research output: Contribution to journalJournal articlepeer-review

Harvard

APA

Vancouver

Author

Ranga Dinesh, K.K.J. ; Jiang, Xi ; van Oijen, J. A. / Direct numerical simulation of nonpremixed syngas burning with detailed chemistry. In: Fuel. 2013 ; Vol. 107. pp. 343-355.

Bibtex

@article{9c056146621b4137ad0b07f63814a4a6,
title = "Direct numerical simulation of nonpremixed syngas burning with detailed chemistry",
abstract = "H2/CO syngas non-premixed impinging jet flames were studied using three-dimensional direct numerical simulation (DNS) and flamelet generated manifolds (FGMs) based on detailed chemical kinetics. The computational domain employed has a size of four jet nozzle diameters in the streamwise direction and 12 jet nozzle diameters in the cross-streamwise direction. The results presented in this study were performed using a uniform Cartesian grid with 200 × 600 × 600 points. The Reynolds number used was Re = 2000, based on the reference quantities. The spatial discretisation was carried out using a sixth-order accurate compact finite difference scheme and the discretised equations were time-advanced using a third-order accurate fully explicit compact-storage Runge–Kutta scheme. Results show that the ratio of H2 and CO in the syngas mixture significantly affects the flame characteristics including the near-wall flame structure. The high diffusivity of H2-rich syngas flame leads to form weaker vortices and a thicker flame. In contrast, CO-rich syngas flame leads to form a thinner flame with strong wrinkles. Moreover, the DNS results suggest that the preferential diffusion influences the local flame structure for the simulated low Reynolds number H2 flame.",
keywords = "Syngas combustion, Preferential diffusion , Impinging jet , DNS , FGM",
author = "{Ranga Dinesh}, K.K.J. and Xi Jiang and {van Oijen}, {J. A.}",
year = "2013",
month = may,
doi = "10.1016/j.fuel.2013.01.014",
language = "English",
volume = "107",
pages = "343--355",
journal = "Fuel",
issn = "0016-2361",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Direct numerical simulation of nonpremixed syngas burning with detailed chemistry

AU - Ranga Dinesh, K.K.J.

AU - Jiang, Xi

AU - van Oijen, J. A.

PY - 2013/5

Y1 - 2013/5

N2 - H2/CO syngas non-premixed impinging jet flames were studied using three-dimensional direct numerical simulation (DNS) and flamelet generated manifolds (FGMs) based on detailed chemical kinetics. The computational domain employed has a size of four jet nozzle diameters in the streamwise direction and 12 jet nozzle diameters in the cross-streamwise direction. The results presented in this study were performed using a uniform Cartesian grid with 200 × 600 × 600 points. The Reynolds number used was Re = 2000, based on the reference quantities. The spatial discretisation was carried out using a sixth-order accurate compact finite difference scheme and the discretised equations were time-advanced using a third-order accurate fully explicit compact-storage Runge–Kutta scheme. Results show that the ratio of H2 and CO in the syngas mixture significantly affects the flame characteristics including the near-wall flame structure. The high diffusivity of H2-rich syngas flame leads to form weaker vortices and a thicker flame. In contrast, CO-rich syngas flame leads to form a thinner flame with strong wrinkles. Moreover, the DNS results suggest that the preferential diffusion influences the local flame structure for the simulated low Reynolds number H2 flame.

AB - H2/CO syngas non-premixed impinging jet flames were studied using three-dimensional direct numerical simulation (DNS) and flamelet generated manifolds (FGMs) based on detailed chemical kinetics. The computational domain employed has a size of four jet nozzle diameters in the streamwise direction and 12 jet nozzle diameters in the cross-streamwise direction. The results presented in this study were performed using a uniform Cartesian grid with 200 × 600 × 600 points. The Reynolds number used was Re = 2000, based on the reference quantities. The spatial discretisation was carried out using a sixth-order accurate compact finite difference scheme and the discretised equations were time-advanced using a third-order accurate fully explicit compact-storage Runge–Kutta scheme. Results show that the ratio of H2 and CO in the syngas mixture significantly affects the flame characteristics including the near-wall flame structure. The high diffusivity of H2-rich syngas flame leads to form weaker vortices and a thicker flame. In contrast, CO-rich syngas flame leads to form a thinner flame with strong wrinkles. Moreover, the DNS results suggest that the preferential diffusion influences the local flame structure for the simulated low Reynolds number H2 flame.

KW - Syngas combustion

KW - Preferential diffusion

KW - Impinging jet

KW - DNS

KW - FGM

U2 - 10.1016/j.fuel.2013.01.014

DO - 10.1016/j.fuel.2013.01.014

M3 - Journal article

VL - 107

SP - 343

EP - 355

JO - Fuel

JF - Fuel

SN - 0016-2361

ER -