Effect of operating parameters on application based performance analysis of PDC: A recent review

Debnath, Pinku; Pandey, Krishna Murari

doi:10.1016/j.matpr.2020.12.226

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…A strong turbulence rate of reaction was found for the blockage of 70%. 21 Turbulence induced DDT has been studied by Jessica et al 22 using experimental techniques like OH chemiluminescence, high speed particle image velocimetry, Schileren and pressure measurements. It has been found that the turbulent flame speed calculated was higher than the CJ deflagration speed in the runaway transition regime.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations of a hydrogen-air pre-detonator for detonation engines

Pathangae,

Varadachari

2024

Proceedings of the Institution of Mechanical Engineers, Part G:

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In recent years, heat release associated with the detonation phenomenon is considered a very efficient process. Pressure gain combustors are being developed with detonation waves as the driving force. In this scenario, study of detonation waves has become very important. Deflagration-to-Detonation transition (DDT) is one of the ways used to initiate detonation in the combustors. An attempt has been made in this paper to study the DDT in a tube with obstacles using OPENFOAM. A 2-dimensional rectangular section of a tube containing obstacles filled with stoichiometric hydrogen-air mixtures at different initial conditions have been studied. The effect of changes in the length of the tube, number of obstacles, blockage ratios and initial pressure of the reactants on the detonation wave properties have been studied using numerical simulation based on ddtfoam software. The motivation for this study is to design a pre-detonator for a rotating detonation engine (RDE). In order to make it compatible with the RDE and the test facility, it has been proposed to carry out simulations using shorter lengths of the DDT tube. The number of obstacles has been selected appropriately to obtain detonation at shorter lengths of the tube of the order of 1.5 m, 1.0 m & 0.5 m. As the objective has been to obtain design data for the prototype, the finer details of DDT are not being discussed in this paper.

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Section: Introductionmentioning

confidence: 99%

Numerical simulations of a hydrogen-air pre-detonator for detonation engines

Pathangae,

Varadachari

2024

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…The several pulse detonation combustor geometry and operating conditions can accelerate the deflagration flame. The researchers and scientists have been studied on PDE with research gape and scope of future research work [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulation of detonation wave propagation in modified pulse detonation combustor

Debnath,

Pandey

2023

E3S Web Conf.

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In this paper effect of Schelkin spiral material on thermal load and detonation combustion wave propagation in pulse detonation combustor has been simulated. As detonation combustion is supersonic combustion process and energy release rate is very high. In this regards present researches are focusing on flame acceleration process to reduce the DDT run up length. Hence the Schelkin spiral is inserted in detonation tube, which creates a bluff body and enhanced the turbulence of flame propagation. During simulation three turbulence models are used to carry out the reliable and repeatable detonation wave in pulse detonation combustor near thin boundary layer of helical shape Shchelkin spiral. The computational fluid dynamics (CFD) simulation has been performed using Ansys fluent platform. The Large Eddy Simulation (LES), detached eddy simulation with realizable k-ε turbulence model and detached eddy simulation with SST k-ω turbulence model are used for reacting flow simulation. From this simulation the LES turbulence model shows better turbulence initiation of detonation wave with velocity magnitude of 3040 m/s in detonation tube compared to other two turbulence models. This velocity is higher than C-J velocity of 1800 m/s. Further computational result shows that deflagration to detonation transition take place at several waves traveling region, in presence of Shchelkin spiral in detonation tube.

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Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

Debnath,

Pandey

2024

Arab J Sci Eng

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Effect of operating parameters on application based performance analysis of PDC: A recent review

Cited by 6 publications

References 38 publications

Numerical simulations of a hydrogen-air pre-detonator for detonation engines

Numerical simulations of a hydrogen-air pre-detonator for detonation engines

Computational fluid dynamics simulation of detonation wave propagation in modified pulse detonation combustor

Exergetic and Thermal Performance Analysis of Liquid and Gaseous Fuel–Air Mixture in PDC Using Computational Fluid Dynamics

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