CAJ | 학술논문

借助STAR-CCM+软件，分析了某型车SCR后处理系统在额定工况下的压力场和速度场分布，以及不同尾气流量下排气背压的变化，得到排气背压随着尾气流量的变化，规律，最后利用最小二乘法，得到尾气流量与排气背压的关系式。该方法为SCR系统的设计提供了有效的理论依据。
차조STAR-CCM+연건，분석료모형차SCR후처리계통재액정공황하적압력장화속도장분포，이급불동미기류량하배기배압적변화，득도배기배압수착미기류량적변화，규률，최후이용최소이승법，득도미기류량여배기배압적관계식。해방법위SCR계통적설계제공료유효적이론의거。
With the help of the software STAR-CCM+, the pressure field and velocity field distribution of the SCR processing system for a vehicle are analyzed under the rated condition, and the variety of the exhaust back pressure in different exhaust flow is analyzed . The relationship between the exhaust flow and the exhaust back pressure is obtained. The method provides a theoretical basis for the design of SCR system.