Computation of transient-temperature profiles in objects exposed to simulated lightning currents

I. A. Metwally, A. A. A-Rahim, F. Heidler, W. Zischank

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper presents a theoretical analysis of transient temperature distribution in metals and composites struck by different lightning currents to simulate objects of interest, especially aircrafts. A computer program based on the finite volume technique is written to compute the transient-temperature distributions in three dimensions due to both high-amplitude impulse currents (IC) and the relatively low-amplitude long-duration currents (LDC). Typical waveform of the discharge current during lightning strikes to objects near/on ground (negative downward flash), at high altitudes (negative upward flash) and in-flight (e.g. aircrafts) are simulated with different amplitudes and durations. The simulation considers the IC as first negative, or superimposed or subsequent return strokes with respect to the LDC. Different types of metals and carbon-fiber composites are also investigated to compare their thermal transient responses. Finally, the theoretical results are verified by using a sophisticated high-speed infrared camera to measure the rear-face temperature profiles of metals as a function of the coordinates and time due to both IC and LDC.

Original languageEnglish
Title of host publication2003 IEEE Bologna PowerTech - Conference Proceedings
Pages194-199
Number of pages6
Volume1
DOIs
Publication statusPublished - 2003
Event2003 IEEE Bologna PowerTech Conference - Bologna, Italy
Duration: Jun 23 2003Jun 26 2003

Other

Other2003 IEEE Bologna PowerTech Conference
CountryItaly
CityBologna
Period6/23/036/26/03

Fingerprint

Lightning
Temperature distribution
Metals
Aircraft
Composite materials
Transient analysis
Temperature
Carbon fibers
Computer program listings
Cameras
Infrared radiation

Keywords

  • Heating effect
  • Lightning currents
  • Metals
  • Rear-face temperature
  • Transient-temperature distribution

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Metwally, I. A., A-Rahim, A. A., Heidler, F., & Zischank, W. (2003). Computation of transient-temperature profiles in objects exposed to simulated lightning currents. In 2003 IEEE Bologna PowerTech - Conference Proceedings (Vol. 1, pp. 194-199). [1304132] https://doi.org/10.1109/PTC.2003.1304132

Computation of transient-temperature profiles in objects exposed to simulated lightning currents. / Metwally, I. A.; A-Rahim, A. A.; Heidler, F.; Zischank, W.

2003 IEEE Bologna PowerTech - Conference Proceedings. Vol. 1 2003. p. 194-199 1304132.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Metwally, IA, A-Rahim, AA, Heidler, F & Zischank, W 2003, Computation of transient-temperature profiles in objects exposed to simulated lightning currents. in 2003 IEEE Bologna PowerTech - Conference Proceedings. vol. 1, 1304132, pp. 194-199, 2003 IEEE Bologna PowerTech Conference, Bologna, Italy, 6/23/03. https://doi.org/10.1109/PTC.2003.1304132
Metwally IA, A-Rahim AA, Heidler F, Zischank W. Computation of transient-temperature profiles in objects exposed to simulated lightning currents. In 2003 IEEE Bologna PowerTech - Conference Proceedings. Vol. 1. 2003. p. 194-199. 1304132 https://doi.org/10.1109/PTC.2003.1304132
Metwally, I. A. ; A-Rahim, A. A. ; Heidler, F. ; Zischank, W. / Computation of transient-temperature profiles in objects exposed to simulated lightning currents. 2003 IEEE Bologna PowerTech - Conference Proceedings. Vol. 1 2003. pp. 194-199
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