Numerical Study of Natural Convection from Two Parallel Horizontal Cylinders Enclosed by Circular Cylinder . Tikrit j. eng. sci. [انترنت]. 31 مارس، 2008 [وثق 9 نوفمبر، 2026];15(1):51-69. موجود في: https://tj-es.com/ojs/index.php/tjes/article/view/635