Numerical investigation of a swirl diffuser with a novel design using large eddy simulations

2018 ◽  
Vol 135 ◽  
pp. 124-141 ◽  
Author(s):  
Zhenqing Liu ◽  
Qiuming Li ◽  
Takeshi Ishihara
2011 ◽  
Vol 133 (11) ◽  
Author(s):  
S. Krajnović ◽  
S. Sarmast ◽  
B. Basara

The flow around generic wheels in wheel housings used in previous experimental investigations is studied using large eddy simulations (LES). A comparison is given here of the results of the simulations with existing experimental data and previous results of RANS simulations. Both instantaneous and time-averaged flows are described, showing agreement with previous knowledge and adding new insight in flow physics. Two different widths of the wheel housing are used in the simulations, and their influence on the flows is studied. The present work shows that the width of the wheel housing has an influence on flows on both the inside and the outside of the wheelhouse.


2011 ◽  
Vol 110-116 ◽  
pp. 4269-4275
Author(s):  
K. Lam ◽  
Y.F. Lin ◽  
Y. Liu ◽  
L. Zou

The effect of the wavy surface on the aerodynamic characteristics of an airfoil is studied using the large eddy simulations. A more gentle lift characteristic is obtained during stall. For angles of attack less than the baseline stall angle of a NACA0012 airfoil, a lift coefficient reduction was observed for the wavy airfoils, while the lift coefficient increases up to 23% greater than that of a NACA0012 airfoil when the angle of attack is larger than the baseline stall angle of the NACA0012 airfoil.


2012 ◽  
Vol 39 (3) ◽  
pp. 272-289 ◽  
Author(s):  
Bahram Khalighi ◽  
Gianluca Iaccarino ◽  
Yaser Khalighi

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1439-1445 ◽  
Author(s):  
D. C. Lewellen ◽  
W. S. Lewellen ◽  
L. R. Poole ◽  
C. A. Hostetler ◽  
R. J. DeCoursey ◽  
...  

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