TY - JOUR
T1 - Effecting Factors on the Heat-Transfer Characteristics of the High Temperature and High Speed Jet Impinging to a Plate
AU - Wang, Xiao Guang
AU - Song, Qiu Zhi
AU - Ren, Ming
N1 - Publisher Copyright:
© 2017, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
PY - 2017/8/1
Y1 - 2017/8/1
N2 - To study the heat-transfer characteristics of high temperature and high speed jet impinging a plate, simulations and experimental research were conducted to verify the validity of the SST-SAS model. On this basis, the effectsof factors likeinlet boundary (turbulence intensity I, gun exit D, velocity to temperature ratio), jet-to-plate spacing H/D, plate inclination angle θ, plate temperature Tw on the Nusselt number and high temperature jet impinged area were studied. Then, the average Nusselt number of the high temperature jet impinged region was statistically analyzed. The results show that I, u0/T0, H/D and θ have a great effect on the Nusselt number and high temperature jet impinged area; but the impact of D and Tw was limited. In addition, the change of average Nusselt number of the high temperature jet impinged area is contrary to that of the high temperature jet impinged area, and its numerical value is one magnitude greater than the low temperature and low velocity jet impingement, and the value range is 1 321 to 3 873.
AB - To study the heat-transfer characteristics of high temperature and high speed jet impinging a plate, simulations and experimental research were conducted to verify the validity of the SST-SAS model. On this basis, the effectsof factors likeinlet boundary (turbulence intensity I, gun exit D, velocity to temperature ratio), jet-to-plate spacing H/D, plate inclination angle θ, plate temperature Tw on the Nusselt number and high temperature jet impinged area were studied. Then, the average Nusselt number of the high temperature jet impinged region was statistically analyzed. The results show that I, u0/T0, H/D and θ have a great effect on the Nusselt number and high temperature jet impinged area; but the impact of D and Tw was limited. In addition, the change of average Nusselt number of the high temperature jet impinged area is contrary to that of the high temperature jet impinged area, and its numerical value is one magnitude greater than the low temperature and low velocity jet impingement, and the value range is 1 321 to 3 873.
KW - Heat transfer
KW - Impinging jet
KW - Numerical simulation
KW - SST-SAS model
UR - http://www.scopus.com/inward/record.url?scp=85031668510&partnerID=8YFLogxK
U2 - 10.15918/j.tbit1001-0645.2017.08.003
DO - 10.15918/j.tbit1001-0645.2017.08.003
M3 - Article
AN - SCOPUS:85031668510
SN - 1001-0645
VL - 37
SP - 783
EP - 788
JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
IS - 8
ER -