Large eddy simulation 2D and 3D turbulent channel flow and heat transfer

• Main Authors: Tsai-Ji Liou, 劉彩吉
• Other Authors: Horng-Wen Wu
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/hss673

碩士 === 國立成功大學 === 造船及船舶機械工程學系 === 90 === ABSTRACT This paper used Element-by-Element projection finite element fluid analysis turbulent flow and heat transfer for uniform turbulent flow in a 2D mixed convection channel and 3D force convection channel with heated block. Using Element-by-Element finite element preconditioned conjugate gradient method replaces the traditional finite element method for the non-dimensional Navier-Stokes Equation and Energy Equation. It can reduce matrix storage and computational time. Using large eddy simulation method turbulent model simulates turbulent flow with preconditioned conjugate gradient method and iterates to obtain velocity field, pressure field, and temperature field. This paper offered a set of EBE-PCG numerical simulation method to simulate 2D and 3D turbulent flow. It can confirm that this method is precise and reliable by references. These conclusions can help us understand the phenomenon of 2D and 3D mixing convection of turbulent flow in the channel and heat transfer.