CAJ | 학술논문

通过数值模拟计算研究了4块弓形折流板管壳式折流板开孔换热器在高粘度流质下的强化换热性能。模拟结果表明，在高粘度流质中折流板开后换热器压力分布比未开孔前分布均匀些，温度分布同样遵循相似规律，未开孔折流板背根部会产生滞留区，并且滞留区随着速度的增大而增大，折流板开孔后会对流体产生扰动作用，从而改善滞留区，有助于强化传热。
통과수치모의계산연구료4괴궁형절류판관각식절류판개공환열기재고점도류질하적강화환열성능。모의결과표명，재고점도류질중절류판개후환열기압력분포비미개공전분포균균사，온도분포동양준순상사규률，미개공절류판배근부회산생체류구，병차체류구수착속도적증대이증대，절류판개공후회대류체산생우동작용，종이개선체류구，유조우강화전열。
The performance of heat exchanger with 4 baffles and 4 perforated baffles in high viscosity fluid was studied by numerical simulation. The results show that the pressure distribution of the heat exchanger with perforated baffles is more uniformity than that with non-perforated baffles, and so does the temperature distribution; there exists a stagnant zone at the back of the baffles, and the stagnant zone increases with the increase of the velocity. There will be an effect of disturbance when the baffle is perforated, which can improve the stagnant zone to enhance the heat transfer.