Numerical Simulation of the Flow in a Backward-Facing Step with Wall Injection

• Main Authors: Chun-Ting Chen, 陳俊廷
• Other Authors: 湯敬民
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/47146692815679505190

碩士 === 淡江大學 === 航空太空工程學系碩士班 === 93 === Backward-facing step is quite useful in a lot of field, and it is worthy to discuss the influences when the shape changes. Besides the velocity and different shapes, we plant an injection on the bottom side of step with different velocity of injection and different location to realize how they effect the fluid field. Because of the increasing of the mass and energy, the injection in the recirculation makes the mixture better. When the injection locates on the outer recirculation, the effect on the fluid field depends on the strength of the injection. If the stronger injection locates on outer recirculation, it takes good advantages in heat transfer.