摘要
针对小通道内两相流动摩擦压降的关联式进行了全面分析,描述关联式之间的继承发展关系,并指出不同关联式之间的创新之处.为了评估各种关联式在小通道中的通用性和精度,建立了一个大型摩擦压降数据库,此数据库在蒸发和冷凝/绝热工况下分别有1302和1576个数据点.对26种关联式分工况进行评估分析,并发现Sempértegui-Tapia和Kim关联式分别在蒸发工况、冷凝/绝热工况下具有最佳的预测能力,最后提出了关于关联式改进的建议.
This paper presents a comprehensive analysis of the frictional pressure drop correlations in two-phase flow in mini-channel,describes the relationship of inheritance and development between the correlations,and points out the innovation between different correlations.In order to evaluate the universality and precision of various correlations,it establishes a large frictional pressure drop database,which is specialized for mini-channels.This database includes 1302 and 1576 data points under evaporation and condensation/adiabatic conditions,respectively.Finally,it evaluates and analyzes 26 correlations under different conditions.The results show that the Sempértegui-Tapia and the Kim correlation have the best prediction ability under evaporation conditions and condensation/adiabatic conditions,respectively.This paper provides some advice on the improvement of correlation.
作者
刘勖诚
谷波
曾炜杰
杜仲星
田镇
LIU Xucheng;GU Bo;ZENG Weijie;DU Zhongxing;TIAN Zhen(Institute of Refrigeration and Cryogenics,Shanghai Jiao Tong University,Shanghai 200240,China;Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China)
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2021年第9期1095-1107,共13页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金(51976114)
中国博士后科学基金(2019M650084)资助项目。
关键词
两相流
摩擦压降
关联式
评估
two-phase flow
frictional pressure drop
correlations
evalution