2006
DOI: 10.1088/0022-3727/39/10/045
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A numerical modelling of an electric arc and its interaction with the anode: part III. Application to the interaction of a lightning strike and an aircraft in flight

Abstract: A numerical model is proposed to describe the arc and its interaction with a composite material in an anodic configuration. After a validation step with experimental results in two dimensions (2D) from the literature, the model is used to quantify the degradation level of the material versus the pulse duration and the current intensity value. The flux components show the importance of the Joule effect in the composite. Then, in order to simulate the aircraft displacement, an external convective force is applie… Show more

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Cited by 51 publications
(31 citation statements)
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“…The model predictions in the vicinity of the second peak and to the right of it cannot be used for quantitative analysis. The pressure profile portrays three distinct regions, which each can be explained with reference to Figures 5,6,7. Consider the pressure after 1sec of laser exposure and move from the heat source on the surface through the bulk of the CFC, the initial region shows an apparent constant pressure.…”
Section: Pressure Effects Of Gas Transportmentioning
confidence: 99%
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“…The model predictions in the vicinity of the second peak and to the right of it cannot be used for quantitative analysis. The pressure profile portrays three distinct regions, which each can be explained with reference to Figures 5,6,7. Consider the pressure after 1sec of laser exposure and move from the heat source on the surface through the bulk of the CFC, the initial region shows an apparent constant pressure.…”
Section: Pressure Effects Of Gas Transportmentioning
confidence: 99%
“…This indicates that the lightning strike damage is somewhere between these two cases, which can be successfully modelled without considering details of the gas filtration through the partially decomposed CFCs [2]. Although previous studies [6] [7] have investigated the damage due to lightning strikes, minimal attention has been given to the filtration of gas production. The latter is primarily important for predictions of the reported cracking and de-lamination, plus it is unclear how much thermal energy is actually transported by the gas and what effects it may have on the extent of damage region.…”
Section: Introductionmentioning
confidence: 99%
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“…It is generally accepted that the heat inputs from a lightning strike fall into two categories: firstly, the Joule (resistive) heating from the large impulse current and secondly via the heat flux from the plasma channel [2,3]. The damage as a result of the rapid heating can occur in two ways: firstly via thermochemical reactions (phase change and polymer pyrolysis) and secondly via direct mechanical fracture due to the difference in the thermal expansion of the CFCs constituents.…”
Section: Model Formulationmentioning
confidence: 99%
“…It is one of the most serious natural disasters released by United Nations [1]. According to some experts, free-burning arc model can be used to simulate the lightning current (C component) [2]. But first its interaction with anode should be figured out.…”
Section: Introductionmentioning
confidence: 99%