CAJ | 학술논문

采用Pro/E软件对闭式机舱淡水海水换热器的三维建模，利用FLUENT软件对该换热器壳程流体的流动与传热进行了数值模拟计算，分别以壳程总压降、总传热率、速度这三个方面作为综合衡量标准，分析具有不同折流板弦高、折流板数目的几种淡水海水换热器模型的速度场、温度场和压力场。结果表明：随着折流板数目的增加，壳程流体的压降逐渐升高，出口温度逐渐减小；随着缺口高度的增加，壳程流体的压降明显下降，出口温度也明显增加。
채용Pro/E연건대폐식궤창담수해수환열기적삼유건모，이용FLUENT연건대해환열기각정류체적류동여전열진행료수치모의계산，분별이각정총압강、총전열솔、속도저삼개방면작위종합형량표준，분석구유불동절류판현고、절류판수목적궤충담수해수환열기모형적속도장、온도장화압력장。결과표명：수착절류판수목적증가，각정류체적압강축점승고，출구온도축점감소；수착결구고도적증가，각정류체적압강명현하강，출구온도야명현증가。
This paper develops a three-dimensional model of the closed engineroom heat exchanger by us-ing the Pro/E software. Based on the obtained numerical model,the shell-side turbulent flow and heat transfer characteristics of the examined heat exchanger is analyzed with the aid of the Computational Fluid Dynamics(CFD)software Fluent. Particularly,by taking the shell-side pressure drop,the total heat trans-fer rate,and the flow rate as three comprehensive indicators,the field of velocity,temperature,and pres-sure of the heat exchanger under different baffle nick heights and numbers are investigated. The results show that as the segmental baffle number increases,the pressure drop at the shell-side rises and the outlet temperature drops;meanwhile,when the baffle nick height increases,the pressure drop decreases and the outlet temperature increases.