TY - JOUR TI - Ranz and Marshall correlations limits on heat flow between a sphere and its surrounding gas at high temperature AU - Aissa Abderrahmane AU - Abdelouahab Mohamed AU - Noureddine Abdelkader AU - El Ganaoui Mohammed AU - Pateyron Bernard JN - Thermal Science PY - 2015 VL - 19 IS - 5 SP - 1521 EP - 1528 PT - Article AB - Direct numerical simulations (DNS) for axisymmetric plasma jet are developed to investigate particle plasma spraying process. In this paper we study the plasma jet and we focus mainly on the plasma-particle ex-changes. Finite element analysis employing COMSOL Multiphysics software is used in this simulation. Finally, comparisons are made with the numerically observed particle Nusselt’s numbers and theoretically predicted Nusselt’s numbers based on the Ranz-Marshall correlation. The results agree well with those obtained previously.