Numerical Study on Supersonic Impinging Jet Issuing from Laval Nozzule

2017 ◽  
Vol 2017.23 (0) ◽  
pp. 305
Author(s):  
Hirokazu FUKUDA ◽  
Yoko SAKAKIBARA
Keyword(s):  
Numerical Study ◽  
Impinging Jet ◽  
Supersonic Impinging Jet

Numerical Study on Supersonic Impinging Jet Issuing from Laval Nozzle

2018 ◽  
Vol 2018 (0) ◽  
pp. OS9-8
Author(s):  
Hirokazu FUKUDA ◽  
Yoko SAKAKIBARA ◽  
Hiromasa SUZUKI
Keyword(s):  
Laval Nozzle ◽  
Numerical Study ◽  
Impinging Jet ◽  
Supersonic Impinging Jet

Investigation of the Flow Structures in Supersonic Free and Impinging Jet Flows

2013 ◽  
Vol 135 (3) ◽  
Author(s):  
C. Chin ◽  
M. Li ◽  
C. Harkin ◽  
T. Rochwerger ◽  
L. Chan ◽  
...  
Keyword(s):  
High Speed ◽  
Numerical Study ◽  
Experimental Studies ◽  
Turbulence Models ◽  
Impinging Jet ◽  
Optical Methods ◽  
Navier Stokes ◽  
Jet Flows ◽  
Shock Cell ◽  
Rans Turbulence Models

A numerical study of compressible jet flows is carried out using Reynolds averaged Navier–Stokes (RANS) turbulence models such as k-ɛ and k-ω-SST. An experimental investigation is performed concurrently using high-speed optical methods such as Schlieren photography and shadowgraphy. Numerical and experimental studies are carried out for the compressible impinging at various impinging angles and nozzle-to-wall distances. The results from both investigations converge remarkably well and agree with experimental data from the open literature. From the flow visualizations of the velocity fields, the RANS simulations accurately model the shock structures within the core jet region. The first shock cell is found to be constraint due to the interaction with the bow-shock structure for nozzle-to-wall distance less than 1.5 nozzle diameter. The results from the current study show that the RANS models utilized are suitable to simulate compressible free jets and impinging jet flows with varying impinging angles.

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