3D numerical simulation of heat transfer through simplified protective clothing during fire exposure by CFD

2016 ◽  
Vol 93 ◽  
pp. 314-321 ◽  
Author(s):  
Miao Tian ◽  
Zhaoli Wang ◽  
Jun Li
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Protective Clothing ◽  
Fire Exposure ◽  
3D Numerical Simulation

3D Numerical Simulation of Fluid Flow and Heat Transfer in Tube with Spiral-Flange Insert

2011 ◽  
Vol 236-238 ◽  
pp. 1508-1515
Author(s):  
Qun Song Li ◽  
Qian Yang ◽  
Zhi Song Li ◽  
Tian Lan Yu
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Heat Transfer Coefficient ◽  
Fluid Flow ◽  
Transfer Coefficient ◽  
Turbulence Intensity ◽  
Convective Heat Transfer Coefficient ◽  
3D Numerical Simulation ◽  
Flow And Heat Transfer ◽  
Smooth Tubes

With the help of Fluent 6.2 and supporting software, 3D numerical simulation of fluid flow and heat transfer enhancement of plastic spiral tubes were performed on computer, and the velocity, turbulence intensity and improvement of convective heat transfer coefficient distribution in plastic spiral tubes were analyzed and compared with those in smooth tubes, and characteristics of fluid flow and heat transfer were obtained. The results showed that there were obvious axial, tangential and radial velocities in spiral space, and they were bigger than those in smooth tubes. The turbulence intensity was also increased greatly because of the existence of spiral channels. The dirt production was prevented and the tube's convection heat transfer was effectively strengthened. Its surface average heat transfer coefficient had been enhanced by about 20% compared with the smooth tubes; The pressure drop caused by plastic spiral flange was in the permissible range of engineering application. It was suitable for the heat exchanger at a flow velocity lower than 0.8m/s.

3D numerical simulation of heat transfer during dry drilling of Inconel 718

2021 ◽  
Vol 64 ◽  
pp. 1143-1152
Author(s):  
Kévin Chenegrin ◽  
Jean-Christophe Roux ◽  
Clémentine Helfenstein-Didier ◽  
Cédric Pouvreau ◽  
Mathieu Girinon ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Inconel 718 ◽  
3D Numerical Simulation ◽  
Dry Drilling
Sign in / Sign up

Export Citation Format

Share Document