期刊论文、会议论文

Qing, Defan

中文

IOP Conference Series: Earth and Environmental Science

1755-1307

2018

153

2

77-80

2nd International Workshop on Renewable Energy and Development (IWRED)

IOP Conference Series-Earth and Environmental Science

APR 20-22, 2018

Guilin, PEOPLES R CHINA

[Shu, Mengmei;Qing, Defan;Wang, Hongbing] Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.

DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND

IOP PUBLISHING LTD

10.16576/j.cnki.1007-4414.2018.02.023

本校为第一且通讯机构

分析研究了缩放管内脉动流的传热性能,利用Fluent数值模拟脉动振幅、脉动频率和扩缩比对缩放管传热和沿程阻力的影响。研究结果表明:缩放管内脉动流的传热性能要优于缩放管内流体稳态流动,与缩放管内流体流动为稳态时传热强化了11.4%左右;缩放管内脉动流强化传热同时也增大了沿程阻力;对综合评价指标数的分析得到脉动流条件下缩放管的传热性能显著增强。

The heat transfer performance of the pulsating flow in the convergent-divergent tube is analyzed. The influence of pulsation amplitude, pulsation frequency and divergent segment-convergent segment ratio on heat transfer and resistance of the tube was simulated by numerical simulation. The results show that the heat transfer performance of the pulsating flow in the convergent-divergent tube is better than the fluid steady flow in the tube. The heat transfer is enhanced by about 11.4% compared with the fluid flow in the tube was steady. The pulsating flow in the tube strengthens the heat transfe...