在热等离子体技术的许多实际应用中,颗粒状原料能否在等离子体流中得到适当而有效的加热往往决定工艺过程的成败或优劣,因而引起人们研究高温电离气体、小雷诺数条件下传热的兴趣。目前文献中热等离子体与球的传热关系式虽然不少,但其计算结果间往往有较大差别。[1]中实验对流热流竟低于相应的纯导热理论值。 In many practical applications of thermal plasma technology, whether particulate matter can be properly and effectively heated in the plasma stream often determines the success or failure of the process, leading to the study of high temperature ionized gases at small Reynolds numbers Heat of interest. Although there are quite a few heat transfer relations between the thermal plasma and the ball in the current literature, there are often big differences between the calculated results. Experimental convection heat flow in [1] is actually lower than the corresponding theoretical value of pure thermal conductivity.