Numerical Investigation of the Air Tabs Technique in Jet Flow

2013 ◽  
Vol 29 (1) ◽  
pp. 42-49 ◽  
Author(s):  
C. Wan ◽  
S. C. M. Yu
Keyword(s):  
Numerical Investigation ◽  
Jet Flow

NUMERICAL INVESTIGATION OF CONJUGATE HEAT TRANSFER FROM LAMINAR WALL JET FLOW OVER A SHALLOW CAVITY

2018 ◽  
Vol 49 (12) ◽  
pp. 1151-1170 ◽  
Author(s):  
Maheandera Prabu Paulraj ◽  
Rajesh Kanna Parthasarathy ◽  
Jan Taler ◽  
Dawid Taler ◽  
Pawel Oclon ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Investigation ◽  
Conjugate Heat Transfer ◽  
Jet Flow ◽  
Wall Jet ◽  
Shallow Cavity ◽  
Wall Jet Flow

scholarly journals Numerical investigation of a confined jet flow in a rectangular cavity

2007 ◽  
Vol 1 (2) ◽  
pp. 245-258 ◽  
Author(s):  
Nikola Jelić ◽  
Tomaž Kolšek ◽  
Jože Duhovnik
Keyword(s):  
Numerical Investigation ◽  
Jet Flow ◽  
Rectangular Cavity

Numerical Investigation of Bumps and Oscillation in the Cylindrical Membrane Inflation

2013 ◽  
Vol 444-445 ◽  
pp. 1335-1339
Author(s):  
Cong Lei Wang ◽  
Jian Hong Sun ◽  
Chang Yue Xu
Keyword(s):  
Numerical Investigation ◽  
Vortex Flow ◽  
Fluid Structure Interaction ◽  
Jet Flow ◽  
Wave System ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Working Performance ◽  
Membrane Inflation ◽  
Compressible Jet

Numerical investigation on the fluid structure interaction in the cylindrical membrane inflation is performed by the Euler-Largrangian method. In membrane inflation, the vortex flow and wave system induced by the interaction between compressible jet flow and membrane appeared inside membrane. This phenomenon concentrates the stresses and generates a pair of bumps. The influences of oscillation and bumps on membrane working performance and safety are also investigated.

scholarly journals Numerical Investigation of Powered Jet Effects by RANS/LES Hybrid Methods

2019 ◽  
Vol 37 (3) ◽  
pp. 565-571
Author(s):  
Zhibin Gong ◽  
Jie Li ◽  
Jixiang Shan ◽  
Heng Zhang
Keyword(s):  
Numerical Investigation ◽  
Hybrid Methods ◽  
Three Dimensional ◽  
Jet Flow ◽  
Weno Scheme ◽  
Detached Eddy Simulation ◽  
Turbulent Structures ◽  
Ambient Flow ◽  
Eddy Simulation ◽  
Delayed Detached Eddy Simulation

For the high-precision simulation of engine jet effects, an improved delayed detached eddy simulation (IDDES) method based on the two-equation shear stress transport (SST) model is developed, and the fifth-order finite-volume weighted essentially non-oscillatory (WENO) scheme is employed to enhance accuracy of spatial discretization, and then numerical investigation of powered jet effects by RANS/LES hybrid methods is carried out. The effects of the grid distributions and the accuracy of the spatial schemes are discussed during the RANS/LES validation analysis on the fully expanded jet flow and Acoustic Reference Nozzle (ARN) jet flow. The results show that, by enlarging the grid density and improving the accuracy of the spatial schemes, the velocity distributions in the jet flow can be better predicted, the non-physical steady flow after the jet nozzle can be shortened, the instantaneous flow structures are clearer and the turbulent intensities are more accurate. Then IDDES simulation of turbofan engine jet flow is carried out. The mixing characteristics of the external fan jet flow and internal core jet flow as well as the ambient flow are obtained, and the three-dimensional turbulent structures are also given.

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