中国石油大学学报（自然科学版）2025，Vol.49Issue(3)：187-195,9.DOI:10.3969/j.issn.1673-5005.2025.03.020
基于完全和不完全填充肋片微通道的多核芯片热管理
Thermal management for multi-core chips through microchannels completely or incompletely filled with ribs
摘要
Abstract
Microchannels have attracted significant attention in the thermal management of integrated circuits due to their small size and high heat transfer efficiency.Motivated by further improving the thermal management capacity of microchan-nels in multi-core chips with a lower pressure drop penalty,a comparative investigation on four different configurations was conducted through numerical simulation for the Reynolds number(Re)ranging from 200 to 800 to analyze the comprehensive effects of filling mode and rib arrangement on the flow and heat transfer characteristics,including microchannel completely filled with aligned ribs(MCFAR),microchannel incompletely filled with aligned ribs(MIFAR),microchannel completely filled with staggered ribs(MCFSR)and microchannel incompletely filled with staggered ribs(MIFSR).Moreover,the en-tropy generation rate was used to estimate the irreversibility of flow and heat transfer based on the second law of thermodynam-ics.The performance evaluation criteria(PEC)was adopted to estimate the overall performance.The results show that the flow patterns in the MIFAR and the MIFSR are different from those in the MCFAR and the MCFSR due to the incomplete fill-ing mode,which could induce more dramatic disturbance and further break the downstream boundary layer,thus the heat transfer could be enhanced under a lower pressure drop penalty.The entropy generated by heat transfer contributes the major-ity of the total entropy generation,thus enhancing the heat transfer is a more important and effective approach in reducing the irreversibility.Among the four configurations,the microchannel MIFAR shows the best overall performance(PEC=1.76)when Re=400.关键词
微通道/肋片/传热/压降/数值模拟Key words
microchannel/ribs/heat transfer/pressure drop/numerical simulation分类
能源科技引用本文复制引用
黄秉欢,米创,朱传勇..基于完全和不完全填充肋片微通道的多核芯片热管理[J].中国石油大学学报（自然科学版）,2025,49(3):187-195,9.基金项目
国家自然科学基金项目(52206127) （52206127）
中央高校基本科研业务费专项(21CX06052A) （21CX06052A）
