TY - JOUR
T1 - Mesh design of free shear layer flows simulation
AU - Yu, Yong
PY - 2013/9
Y1 - 2013/9
N2 - In this paper, according to basic fluid dynamics theory and interacting shear flows (ISF) theory, following conclusion can be proved. There exists the best computational mesh in simulation of free shear flows. The best mesh design are orthogonal grid which grid line are parallel to the direction of ISF viscous shear thin layer streamline, in addition, the grid must be refined in the thin layer along normal. As for no optimal mesh, it will be difficult to capture the physics viscous effect in ISF viscous thin shear layer as the result of much more refined grid and viscous effect will be numerical. The conclusion were validated by simulation of an uncompressible free shear layer laminar flow.
AB - In this paper, according to basic fluid dynamics theory and interacting shear flows (ISF) theory, following conclusion can be proved. There exists the best computational mesh in simulation of free shear flows. The best mesh design are orthogonal grid which grid line are parallel to the direction of ISF viscous shear thin layer streamline, in addition, the grid must be refined in the thin layer along normal. As for no optimal mesh, it will be difficult to capture the physics viscous effect in ISF viscous thin shear layer as the result of much more refined grid and viscous effect will be numerical. The conclusion were validated by simulation of an uncompressible free shear layer laminar flow.
KW - Computational fluid dynamics
KW - Free shear layer flows
KW - Interacting shear flows theory
KW - Mesh design
UR - http://www.scopus.com/inward/record.url?scp=84887854873&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84887854873
SN - 1001-0645
VL - 33
SP - 885-889+895
JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
IS - 9
ER -