EXPERIMENTAL STUDY OF HEAT TRANSFER OF AXISYMMETRIC AIR IMPINGEMENT FROM AN ORIFICE ON A MODIFIED SURFACE. J. eng. sustain. dev. [انترنت]. 1 مارس، 2016 [وثق 18 مايو، 2024];20(2):55-81. موجود في: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/657