“…Therefore, it is difficult to analyze the characteristics of the internal circumferential temperature fields. Besides, in the abovementioned studies, the constant wall temperature thermal boundary condition was used by Mori and Nakayama [11,13], Zapryanov et al [15], Xin and Ebadian [16], Di Piazza and Ciofalo [17], Liberto et al [18], Cvetkovski et al [26], and Pan et al [29]. The constant wall heat flux thermal boundary condition was used by Mori and Nakayama [12], Cheng and Akiyama [14], Kang and Yang [19], Arvanitis et al [20], Wang et al [23], and Safari et al [28].…”