Large eddy simulations of turbulent combustion of kerosene-air in a dual swirl gas turbine model combustor at high pressures

Huang, Dongxin; Xu, Jianguo; Chen, Ruiyan; Meng, Hua

doi:10.1016/j.fuel.2020.118820

Cited by 35 publications

(12 citation statements)

References 49 publications

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“…As it became clear that the Reynolds Averaged Navier Stokes method was difficult to solve the complex turbulent/transitional flow problem, and the computing power rapidly increased, the LES method began to be applied to the CFD simulation of the gas turbine combustor with complex internal flow characteristics. This resulted in raising the level of 3D performance prediction to a new level (Choi et al , 2017; Huang et al , 2020). The challenge in the application of the LES method is that it is computationally expensive and time-consuming, and application studies have not yet been sufficiently conducted.…”

Section: Combustor Design Methodsmentioning

confidence: 99%

Design methodology for combustor in advanced gas turbine engines: a review

Kim,

Jin,

et al. 2024

AEAT

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Purpose A combustor design is a particularly important and difficult task in the development of gas turbine engines. During studies for accurate and easy combustor design, reasonable design methodologies have been established and used in engine development. The purpose of this paper is to review the design methodology for combustor in development of advanced gas turbine engines. The advanced combustor development task can be successfully achieved in less time and at lower cost by adopting new and superior design methodologies. Design/methodology/approach The review considers the main technical problems (combustion, cooling, fuel injection and ignition technology) in the development of modern combustor design and deals with combustor design methods by dividing it into preliminary design, performance evaluation, optimization and experiment. The advanced combustion and cooling technologies mainly used in combustor design are mentioned in detail. In accordance with the modern combustor design method, the design mechanisms are considered and the methods used in every stage of the design are reviewed technically. Findings The improved performances and strict emission limits of gas turbine engines require the application of advanced technologies when designing combustors. The optimized design mechanism and reasonable performance evaluation methods are very important in reducing experiments and increasing the effectiveness of the design. Originality/value This paper provides a comprehensive review of the design methodology for the advanced gas turbine engine combustor.

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Section: Combustor Design Methodsmentioning

confidence: 99%

Design methodology for combustor in advanced gas turbine engines: a review

Kim,

Jin,

et al. 2024

AEAT

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“…Swirling air injection is commonly implemented in a gas turbine engine to enhance fuel-air mixing and flame stability [3]; therefore, the swirler angle exerts a direct impact on fluid flows and flame dynamics in the engine combustor [4][5][6]. Many researchers have investigated the effect of air swirlers on turbulent flow and combustion in gas turbine engines.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the fuel-air mixing and combustion processes are controlled directly by turbulent flows, with large variations of thermophysical properties [11]. A supercritical-pressure turbulent combustion model has recently been introduced for studying swirling flow and combustion in an aero engine model combustor at various chamber pressures and fuel-air equivalence ratios [6].…”

Section: Introductionmentioning

confidence: 99%

Computational Study of the Effect of Dual Air Swirling Injection on Turbulent Combustion of Kerosene–Air at a High Pressure

Huang,

Wang,

et al. 2023

The 4th International Electronic Conference on Applied Sciences

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“…Droplet density was higher at the vicinity of the burner axis, and finer atomization was observed. Huang et al 33 considered co-swirlers for their LES study of kerosene/air combustion for high-pressure conditions up to 5 MPa. The interactions of high-pressure combustion with the high swirl flow patterns are shown in their numerical studies.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Computational Investigation upon Combustion Characteristics of Liquid Fuel in a Novel Combustor with Hybrid Swirl and Recirculation Bowl

et al. 2022

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In the present study, a novel hybrid swirl combustor is designed to reduce the size and complexity of a conventional gas turbine combustor. In this combustor, a dual-swirl pattern is adopted by providing the central vane swirler (45°vane angle) and circumferential tangential injection scheme to achieve higher recirculation of heat and combustion products inside the combustor. Numerical and experimental studies are carried out to understand the flow patterns and combustion characteristics in this high mass−heat interacting environment. Initially, computational studies were carried out to find the optimum geometry for greater recirculation and interaction among the reacting species inside the combustor. Liquid fuel (kerosene) is sprayed into the combustor for two thermal inputs of 25 and 50 kW. Three cases were studied to analyze the effect of bowl recirculation and tangential air inputs in addition to the swirlers. The hybrid swirl, formed by the counter-flow pattern, helps in achieving low and uniform temperature throughout and assists in flame anchoring. The tangential air flow provides a push to the combustion products from the downstream to the central recirculation zone of the combustor. The combined effect of central and tangential swirlers helps in attaining a more distributed combustion. The CO and NO emissions reduced with the use of hybrid swirl.

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Large eddy simulations of turbulent combustion of kerosene-air in a dual swirl gas turbine model combustor at high pressures

Cited by 35 publications

References 49 publications

Design methodology for combustor in advanced gas turbine engines: a review

Design methodology for combustor in advanced gas turbine engines: a review

Computational Study of the Effect of Dual Air Swirling Injection on Turbulent Combustion of Kerosene–Air at a High Pressure

Experimental and Computational Investigation upon Combustion Characteristics of Liquid Fuel in a Novel Combustor with Hybrid Swirl and Recirculation Bowl

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