热传递 增强可控制的尺寸比率 碎形频道
1State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, China.
Micromachines
|September 28, 2023
概括
一种新的可控制面积比分频道 (CARFC) 散热器可以改善高端设备的热管理. 这种设计提高了散热效率,降低了峰值温度和对更轻,高性能设备的冷却剂需求.
科学领域:
- 热力工程是热力工程中的一个.
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 高端设备面临着重大的热管理挑战.
- 对高效散热器的需求不断增加,需要先进的冷却解决方案.
- 分形几何学在紧的设计中提供了优化热传递的潜力.
研究的目的:
- 提出和评估可控制的面积比分频道 (CARFC) 散热器,以提高热性能.
- 为了研究面积比变化对分形通道散热器效率的影响.
- 为了展示CARFC在热管理中的优势,而不是传统的设计.
主要方法:
- 开发了使用控制点和分叉点对CARFCs进行参数化建模方法.
- 建立了数学关系,以定义基于尺寸比的通道几何.
- 在恒定的热量流下使用数值模拟来分析性能.
- 研究了每一个分数级 (k0,k1) 的入口面积比和面积比的影响.
主要成果:
- 输入面积比率显著影响碎形通道性能.
- 个别通道的面积比 (特别是k0和k1) 极大地影响CARFC的热性能.
- 与只有调整入口面积比的设计相比,CARFC表现出优异的性能.
- 在峰值温度下降了9.62%,温度差异降低了26.57%.
结论:
- 卡夫克的设计提供了卓越的热管理能力.
- 在碎形频道中优化图形比率会带来显著的性能提升.
- 对于开发需要高效散热和减少冷却剂使用的轻量级设备,CARFC技术至关重要.
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