摘要
该文以简化的斜背式轿车模型为研究对象, 以商用计算流体力学软件STAR-CD为工具, 利用移动边界条件进行三维数值模拟, 计算了加装尾翼前和加装不同剖面形状的尾翼后的车身阻力系数和升力系数, 并通过与试验结果的对比, 验证了数值计算结果的正确性. 计算结果表明, 尾翼的加装可以改善尾流结构, 而选择合理的尾翼剖面形状, 则能使得气动特性得到最佳改善效果.
The aerodynamic characteristics of a simplified notchback car with rear wing were studied with numerical methods of moving ground boundary condition with the CFD code STAR-CD.Compared with the test results of the car without rear wing,the aerodynamic coefficients were desirable and the numerical calculation method used for the simulation had enough accuracy and reliability.The drag and lift coefficients of the car with rear wing of different sectional shapes were calculated.It is confirmed that the rear wing with proper sectional shape could improve the wake structure and aerodynamics characteristics.
出处
《车辆与动力技术》
2005年第1期10-13,共4页
Vehicle & Power Technology
