CAJ | 학술논문

采用CFD软件对蜂窝板在不同板片间距、凹坑直径、凹坑深度、凹坑横向间距下进行了数值模拟研究．结果表明，在一定范围内，随着Re的增大，努塞尔数Nu和阻力增大因子．f／fo成指数倍增大，范宁摩擦系数f、传热增强因子Nu／Nu。和综合传热性能增强因子η成指数倍减小；流道高度日对其各性能基本无影响；Nu／Nu。和．f／fo随着凹坑间距P的增大而减小，随着凹坑投影直径d的增大而增大，随着凹坑深度Hd。的增大而先增大后减小；η随着P和d的增大而稍微增大，随着巩的增大而减小．通过正交设计综合考虑各结构参数的影响，拟合得到凹坑蜂窝板结构的传热性能与阻力综合准则性能关系式．
채용CFD연건대봉와판재불동판편간거、요갱직경、요갱심도、요갱횡향간거하진행료수치모의연구．결과표명，재일정범위내，수착Re적증대，노새이수Nu화조력증대인자．f／fo성지수배증대，범저마찰계수f、전열증강인자Nu／Nu。화종합전열성능증강인자η성지수배감소；류도고도일대기각성능기본무영향；Nu／Nu。화．f／fo수착요갱간거P적증대이감소，수착요갱투영직경d적증대이증대，수착요갱심도Hd。적증대이선증대후감소；η수착P화d적증대이초미증대，수착공적증대이감소．통과정교설계종합고필각결구삼수적영향，의합득도요갱봉와판결구적전열성능여조력종합준칙성능관계식．
Using CFD software, it was compared the performance of honeycomb on different plate pitch, dimple diameter, dimple depth and dimple horizontal pitch. It indicoded that, with the increase of Re, Nu was exponentially increased, f, Nu/Nuo , η were exponentially decreased, and f/fo was slightly decreased overall within a certain range. The flow channel height had rarely effect on various performance. Nu/Nuo and f/fo were decreased with the increase of dimple pitch P, and were increased with the increase of dimple print diameter d ; the increase of dimple depth Ha brought the firstly increase and following decrease of Nu/Nuo and f/fo; η is slightly increased with the increase of P and d, and the increase of dimple depth Hd brought the decrease of η. By means of orthogonal, it fitted a flow and heat transfer performance relationship for the structure of honeycombed plate with dimpled surface.