A numerical investigation of evaporation characteristics of a fuel droplet suspended from a thermocouple

作者：Harada Takuji; Watanabe Hirotatsu; Suzuki Yoshiyuki^*; Kamata Haruyuki; Matsushita Yohsuke; Aoki Hideyuki; Miura Takatoshi

来源：International Journal of Heat and Mass Transfer, 2011, 54(1-3): 649-655.

DOI：10.1016/j.ijheatmasstransfer.2010.08.021

• Thermocouple
• Evaporation
• Numerical simulation
• Spray combustion

Numerical simulations of combined natural convection-conduction in a droplet of n-dodecane suspended from a thermocouple were carried out, taking into consideration evaporation, and the effect of thermocouple diameter on the evaporation characteristics was investigated. The calculated temperature history of the droplet is in good agreement with experimental results: both show that the rate of heating decreases with increasing thermocouple diameter. The maximum error in temperature due to the thermocouple increases linearly with increasing thermocouple diameter. Thus, in investigations involving a droplet suspended from a thermocouple, it is preferable to use a thermocouple with the smallest possible diameter.

• 出版日期2011-1-15