针对KIVA程序中网格生成不能适用于复杂区域的缺点,对其提出了一种改进算法,该算法采用Laplace椭圆方程,生成计算区域的网格,具有收敛快、适用于复杂区域的特点.该方法只要给定边界点,就可以自动生成内部网格,无需差值形成内部网格.针对几种部同的内燃机燃烧室采用雷诺应力(DSM)模型,计算了压缩、膨胀、进气和排气过程的内流场,计算结果正确给出了缸内的湍流各向异性的特点.
参考文献
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| [2] | B E Launder;G J reece;W Rodi .Progress in the Development of a Reynolds-stress Turbulence Closure[J].Journal of Fluid Mechanics,1975,68:537-566. |
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