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<p>Effective thermal management of gun barrels is crucial for enhancing firing performance. This study proposes using nano-enhanced, high-thermal-conductivity cladding on the outer wall of the gun barrel to accelerate heat dissipation. By establishing an axisymmetric transient radial thermoset coupled heat transfer model for a composite gun barrel, the influence of the cladding layer on the inner wall temperature of the barrel and the overall heat transfer is investigated in detail. Results show that, at a fixed thickness, higher material volumetric heat capacity improves cooling efficiency. Under a firing rate of 200 rounds per minute, with 3 mm cladding and 100 % nanoparticle volume fraction, the inner wall temperature drops by 63.74 K, and heat transfer efficiency improves by 48.91 %, allowing 13 more rounds to be fired. This method significantly reduces barrel temperature, shortens firing intervals, and enhances sustained firepower in artillery systems.</p>

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Research on gun barrel heat dissipation method based on graphene/copper nanocomposites

  • 期刊论文

  • 发表日期：

    2026年3月11日

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  • Rongzhen Zhao,
  • Qiang Li,
  • Libo Zou,
  • Zhiqun Sun

摘要

Effective thermal management of gun barrels is crucial for enhancing firing performance. This study proposes using nano-enhanced, high-thermal-conductivity cladding on the outer wall of the gun barrel to accelerate heat dissipation. By establishing an axisymmetric transient radial thermoset coupled heat transfer model for a composite gun barrel, the influence of the cladding layer on the inner wall temperature of the barrel and the overall heat transfer is investigated in detail. Results show that, at a fixed thickness, higher material volumetric heat capacity improves cooling efficiency. Under a firing rate of 200 rounds per minute, with 3 mm cladding and 100 % nanoparticle volume fraction, the inner wall temperature drops by 63.74 K, and heat transfer efficiency improves by 48.91 %, allowing 13 more rounds to be fired. This method significantly reduces barrel temperature, shortens firing intervals, and enhances sustained firepower in artillery systems.