supported by the National Natural Science Foundation of China(11332006,11272233,and 11411130150);the National Basic Research Programm of China(2012CB720101)
The spatial-temporal evolution of coherent structures (CS) is significant for turbulence control and drag re- duction. Among the CS, low and high speed streak structures show typical burst phenomena. The analysis wa...
Project supported by the National Natural Science Foundation of China(Grant Nos.11332006 and 11272233);the National Key Basic Research and Development Program of China(Grant No.2012CB720101)
The present experimental work focuses on a new model for space-time correlation and the scale-dependencies of convection velocity and sweep velocity in turbulent boundary layer over a flat wail. A turbulent boundary l...
Supported by National Natural Science Foundation of China(Grant No.51276125);National Key Basic Research Development Program of China(973 Program,Grant No.2012CB720101)
In working state, the dynamic performance of dry gas seal, generated by the rotating end face with spiral grooves, is determined by the open force of gas film and leakage flow rate. Generally, the open force and the l...