Showing posts with label Diamonds. Show all posts
Showing posts with label Diamonds. Show all posts

Tuesday, 13 March 2018

SolidWorks Flow Simulation: Shock Diamonds and Mach Disks


The video linked shows an animation of the flow from the exhaust of a nozzle in both slow motion and at full speed, using SolidWorks Flow Simulation. The transient analysis took 10.6 hours of CPU time to complete.

 
The flow exists the combustion chamber at 2,000,000 Pa and 1,000 K (726.85 C) to atmospheric conditions i.e. 101,325 Pa and 293.2 K (20.05 C).

 
In addition to above mentioned boundary conditions, axially symmetric boundary conditions were also used because the nozzle was circular, one-fourth of the nozzle was simulated to save computational time. A very fine mesh having 486,158 total cells was used. The mesh was refined  in the wake of the nozzle.

Fig. 1. Velocity Contours
 
Fig. 2. Pressure Contours
Fig. 3. Velocity Flow Trajectories
Fig. 4. The Computational Mesh
Fig. 5. The Animation Video
 
Thank you very much for reading.