【摘要】：為了提升散熱器綜合性能,保持車輛工作性能穩(wěn)定,根據(jù)生產(chǎn)商提供的幾何參數(shù),應(yīng)用計(jì)算流體力學(xué)對(duì)管片式散熱器單元性能進(jìn)行數(shù)值計(jì)算,將結(jié)果與試驗(yàn)數(shù)據(jù)對(duì)比,以驗(yàn)證仿真模型的準(zhǔn)確性.以盡量保持散熱面積為前提,提出以NACA0018翼型作為熱管特征,計(jì)算并對(duì)比兩者的JF因子,進(jìn)一步討論其與NACA0012,NACA0021間的換熱系數(shù)和壓力損失差異.仿真結(jié)果表明:通過對(duì)散熱器單元體的數(shù)值模擬,可在一定誤差范圍內(nèi)獲取散熱器冷側(cè)換熱系數(shù)和壓力損失;與扁平管翅片結(jié)構(gòu)相比,仿真區(qū)間內(nèi)翼型熱管翅片的JF因子略高,當(dāng)流速達(dá)到12m/s時(shí),JF評(píng)價(jià)因子高出約15.97%;與NACA0018相比,NACA0021具有較高的換熱系數(shù)和壓力損失,設(shè)計(jì)時(shí)應(yīng)根據(jù)相對(duì)厚度酌情選擇.
[Abstract]:In order to improve the comprehensive performance of the radiator and keep the working performance of the vehicle stable, according to the geometric parameters provided by the manufacturer, the performance of the tubular radiator unit was calculated numerically by computational fluid dynamics, and the results were compared with the experimental data. To verify the accuracy of the simulation model. On the premise of keeping the heat dissipation area as far as possible, the NACA0018 airfoil is used as the heat pipe feature to calculate and compare their JF factors, and the difference of heat transfer coefficient and pressure loss between them and NACA0012,NACA0021 is further discussed. The simulation results show that the heat transfer coefficient and pressure loss of the cooling side of the radiator can be obtained within a certain error range by numerical simulation of the radiator unit, and the JF factor of the fin of the airfoil is slightly higher than that of the flat tube fin structure. When the flow rate reaches 12m/s, the evaluation factor of JF is about 15.97 higher than that of NACA0018. Compared with NACA0018, NACA0021 has higher heat transfer coefficient and pressure loss, and should be selected according to the relative thickness.
【作者單位】： 華中科技大學(xué)能源與動(dòng)力工程學(xué)院;華北理工大學(xué)機(jī)械工程學(xué)院;吉林大學(xué)機(jī)械科學(xué)與工程學(xué)院;
【基金】：湖北省技術(shù)創(chuàng)新專項(xiàng)基金資助項(xiàng)目(2016AAA045) 國(guó)家科技支撐計(jì)劃資助項(xiàng)目(2013BAF07B04)
【分類號(hào)】：TU603;TK172

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 劉佳鑫;蔣炎坤;秦四成;劉成強(qiáng);;基于CFD與ε-NTU法的工程車輛散熱性能預(yù)估[J];華中科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2016年08期

2 顧程鵬;劉佳鑫;秦四成;;動(dòng)力艙不同出口特征下車輛散熱模塊性能分析[J];筑路機(jī)械與施工機(jī)械化;2015年07期

3 劉佳鑫;秦四成;徐振元;張奧;習(xí)羽;張學(xué)林;;虛擬風(fēng)洞下的車輛散熱器模塊性能改進(jìn)[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2014年02期

4 劉佳鑫;秦四成;徐振元;張奧;習(xí)羽;張學(xué)林;;工程車輛散熱器模塊散熱性能數(shù)值仿真[J];西南交通大學(xué)學(xué)報(bào);2012年04期

5 劉佳鑫;秦四成;徐振元;張奧;習(xí)羽;張學(xué)林;;基于CFD仿真的車輛散熱器模塊傳熱性能對(duì)比分析[J];華南理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年05期

6 肖寶蘭;俞小莉;韓松;陸國(guó)棟;夏立峰;;散熱帶翅片參數(shù)對(duì)車用水箱散熱器流動(dòng)傳熱性能的影響[J];內(nèi)燃機(jī)工程;2010年03期

7 王飛;秦四成;趙克利;;裝載機(jī)管片式散熱器流動(dòng)與傳熱特性數(shù)值分析[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2009年S1期

相關(guān)博士學(xué)位論文 前1條

1 劉佳鑫;工程機(jī)械散熱模塊傳熱性能研究[D];吉林大學(xué);2013年

【共引文獻(xiàn)】

相關(guān)期刊論文 前1條

1 許子杰;任光亮;;基于馬氏距離的相位噪聲抑制算法[J];華中科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2017年04期

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