Numerical Simulation of Flow and Heat Transfer in Testing Furnace

• Main Authors: Tsine-Hsien Wu, 吳宗憲
• Other Authors: Chun-Muh Wu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/39950245403835413955

碩士 === 高苑科技大學 === 機械與自動化工程研究所 === 97 === This paper applies a business software to study the behaviors of the flow and heat transfer in a testing furnace. The software, FLUENT (Copyright (c) 2006 Fluent Inc.), is used to simulate the flow fields. The compressible flow model with turbulent flow is chosen. Here the SIMPLE algorithm is chosen in this software. The physical model is that high temperature gas enters into the testing furnace with 16 entrees and two outlets to investigate the fluid field and temperature distribution in the testing furnace. The standard and the model are used to describe the turbulent model process. Compared with the heat transfer, pressure and velocity development in the testing furnace with two kind of turbulent model. This research is used the Computational Fluid Dynamics (CFD) software to simulate the temperature profile with time for the influence in a fire. Turbulent model with two kinds of k-ε and k-ε RNG is very small difference in the survey point. There is the vortex flow in the flow field with the k-ε RNG turbulent model. The testing furnace size is 4.4m(x)*4.2m(y)*2.1m(z). The inlet velocity, v=22.16 m/s. The CNS elevated temperature curve is used as inlet temperature. The flow structures and temperature fields are investigate in this study. The temperature is uniform in the testing furnace. It suggests that the furnace can be used as a fire safety facility.