Geometrical Parametric Studies of Inter Turbine Burner (ITB) for Improved Performance

Thornburg, Hugh; Sekar, Balu; Zelina, Joseph; Greenwood, Roger; Afb, Wright-Patterson; Skudarnov, P. V.

doi:10.2514/6.2007-5099

Cited by 5 publications

(4 citation statements)

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“…Contoured and angled cavities were present in the combustor where fuel is injected. Similar geometry was explored by Thornburg et al (2007). A modification to radial guide vane in the form of 120-degree fan shaped structure was adopted in the work of R.C.…”

Section: Evolution Of Trapped Vortex Combustor Geometrymentioning

confidence: 99%

“…The geometry of the work by Kumar and Mishra (2016) has two cavities, namely, inner and outer located along the walls of the annular combustor. The combustor design of Guang-qi LUO (2017) is similar to that of Thornburg et al (2007) which are designed as an UCC (shorter length). The various geometries of TVC used in numerical studies are illustrated in Figure 1.…”

Section: Evolution Of Trapped Vortex Combustor Geometrymentioning

confidence: 99%

“…From the study, it was observed that the increasing number of structures of cavities in the cavity help in enhancing the circumferential cavity of the fuel and air mixing and burning, promote the combustion mixture to the mainstream radial transport capacity and improve combustion efficiency and uniformity of exit temperature field. The combustion efficiency under various operating range was investigated (Thornburg et al , 2007) from the temperature distribution plots. The study identifies the crucial role of circumferential cavity in mixing of hot products with main flow in the combustor.…”

Section: Computational Studies On Trapped Vortex Combustorsmentioning

confidence: 99%

“…For the reactive cases, two-step chemistry with dddy dissipation concept (EDC) model was used. In case of ITB (Thornburg et al, 2007, Luo et al, 2017, numerical simulations based on Reactive Slot in the middle of aftbody and its effect on length of back flow and total pressure loss implicit formulations with Green Gauss node-based gradient evaluations was used to study the influence of number of structures in cavities of ITB on mixing and transport capacity (Luo et al, 2017). From the study, it was observed that the increasing number of structures of cavities in the cavity help in enhancing the circumferential cavity of the fuel and air mixing and burning, promote the combustion mixture to the mainstream radial transport capacity and improve combustion efficiency and uniformity of exit temperature field.…”

Section: Numerical Studies On Trapped Vortex Combustor: Annular/ultra...mentioning

confidence: 99%

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A review of computational studies on trapped vortex combustors for gas turbine applications

Narayanan

K.M.²

2022

AEAT

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Purpose The purpose of this paper is to comprehensively evaluate the progress in the development of trapped vortex combustors (TVCs) in the past three decades. The review aims to identify the needs, predict the scope and discuss the challenges of numerical simulations in TVCs applied to gas turbines. Design/methodology/approach TVC is an emerging combustion technology for achieving low emissions in gas turbine combustors. The overall operation of such TVCs can be on very lean mixture ratio and hence it helps in achieving high combustion efficiency and low overall emission levels. This review introduces the TVC concept and the evolution of this technology in the past three decades. Various geometries that were explored in TVC research are listed and their operating principles are explained. The review then categorically arranges the progress in computational studies applied to TVCs. Findings Analyzing extensive literature on TVCs the review discusses results of numerical simulations of various TVC geometries. Numerical simulations that were used to optimize TVC geometry and to enhance mixing are discussed. Reactive flow studies to comprehend flame stability and emission characteristics are then listed for different TVC geometries. Originality/value To the best of the authors’ knowledge, this review is the first of its kind to discuss extensively the computational progress in TVC development specific to gas turbine engines. Earlier review on TVC covers a wide variety of applications including land-based gas turbines, supersonic Ramjets, incinerators and hence compromise on the depth of analysis given to gas turbine engine applications. This review also comprehensively group the numerical studies based on geometry, flow and operating conditions.

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Section: Evolution Of Trapped Vortex Combustor Geometrymentioning

confidence: 99%

Section: Evolution Of Trapped Vortex Combustor Geometrymentioning

confidence: 99%

Section: Computational Studies On Trapped Vortex Combustorsmentioning

confidence: 99%