Simulation of Reacting Spray in a Multi-Point Lean Direct Injection Combustor

Dewanji, D.; Rao, Arvind Gangoli; Pourquié, Mathieu; Buijtenen, Jos P. van

doi:10.2514/6.2012-4324

Cited by 6 publications

(2 citation statements)

References 6 publications

(3 reference statements)

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“…Recently, Kim and Menon 9 applied the same approach to study the characteristics of longitudinal combustion instability in an LDI combustor, using the same experimental configuration as in the present article. Dewanji et al 10 conducted the Reynolds-averaged Navier Stokes (RANS) simulation for their multipoint LDI combustor also using the KH breakup model. Our present work covers concurrent experimental and computational studies of an unstable LDI configuration that has been studied at Purdue University since 2011.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fuel Spray Modeling on Combustion Instability Predictions in a Single-Element Lean Direct Injection (LDI) Gas Turbine Combustor

Huang¹,

Gejji²,

Anderson³

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Effects of Fuel Spray Modeling on Combustion Instability Predictions in a Single-Element Lean Direct Injection (LDI) Gas Turbine Combustor

Huang¹,

Gejji²,

Anderson³

et al. 2014

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“…The effects of inlet total temperature, inlet total pressure, and equivalence ratio on the NO X emission were investigated when the inlet temperatures and inlet pressures could reach up to 866 K and 4825 kPa. The spray combustion characteristics of a multi-point LDI combustor was investigated [39]. The RANS code was used to simulate the flow and combustion characteristics in the combustor.…”

Section: Introductionmentioning

confidence: 99%

Simulation Investigation on Combustion Characteristics in a Four-Point Lean Direct Injection Combustor with Hydrogen/Air

Mongia

2017

Applied Sciences

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Abstract:To investigate the combustion characteristics in multi-point lean direct injection (LDI) combustors with hydrogen/air, two swirl-venturi 2 × 2 array four-point LDI combustors were designed. The four-point LDI combustor consists of injector assembly, swirl-venturi array and combustion chamber. The injector, swirler and venturi together govern the rapid mixing of hydrogen and air to form the mixture for combustion. Using clockwise swirlers and anticlockwise swirlers, the co-swirling and count-swirling swirler arrays LDI combustors were achieved. Using Reynolds-Averaged Navier-Stokes (RANS) code for steady-state reacting flow computations, the four-point LDI combustors with hydrogen/air were simulated with an 11 species and 23 lumped reaction steps H 2 /Air reaction mechanism. The axial velocity, turbulence kinetic energy, total pressure drop coefficient, outlet temperature, mass fraction of OH and emission of pollutant NO of four-point LDI combustors, with different equivalence ratios, are here presented and discussed. As the equivalence ratios increased, the total pressure drop coefficient became higher because of increasing heat loss. Increasing equivalence ratios also corresponded with the rise in outlet temperature of the four-point LDI combustors, as well as an increase in the emission index of NO EI NO in the four-point LDI combustors. Along the axial distance, the EI NO always increased and was at maximum at the exit of the dump. Along the chamber, the EI NO gradually increased, maximizing at the exit of chamber. The total temperature of four-point LDI combustors with different equivalence ratios was identical to the theoretical equilibrium temperature. The EI NO was an exponential function of the equivalence ratio.

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N+3 and N+4 Generation Aeropropulsion Engine Combustors: Part 6: Operating Conditions, Target Goals and Lifted Jets

Mongia

2013

49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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Simulation of Reacting Spray in a Multi-Point Lean Direct Injection Combustor

Cited by 6 publications

References 6 publications

Effects of Fuel Spray Modeling on Combustion Instability Predictions in a Single-Element Lean Direct Injection (LDI) Gas Turbine Combustor

Effects of Fuel Spray Modeling on Combustion Instability Predictions in a Single-Element Lean Direct Injection (LDI) Gas Turbine Combustor

Simulation Investigation on Combustion Characteristics in a Four-Point Lean Direct Injection Combustor with Hydrogen/Air

N+3 and N+4 Generation Aeropropulsion Engine Combustors: Part 6: Operating Conditions, Target Goals and Lifted Jets

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