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Mathematical and Computer Modelling of Dynamical Systems
Methods, Tools and Applications in Engineering and Related Sciences
Volume 22, 2016 - Issue 2
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Original Articles

Numerical study of forebody wake effect on axisymmetric parachute opening shock and drag reduction

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Pages 141-159 | Received 09 Jul 2015, Accepted 29 Jan 2016, Published online: 16 Mar 2016

Figures & data

Figure 1. Parachute–forebody structure.

Figure 1. Parachute–forebody structure.

Figure 2. Position and displacement of the parachute.

Figure 2. Position and displacement of the parachute.

Figure 3. Undeformed Gore profile of a round parachute.

Figure 3. Undeformed Gore profile of a round parachute.

Figure 4. ALE formulation and mesh moving.

Figure 4. ALE formulation and mesh moving.

Figure 5. Time history of the vent hole parachute force.

Figure 5. Time history of the vent hole parachute force.

Figure 6. Parachute inflation process.

Figure 6. Parachute inflation process.

Figure 7. Opening shock with different free stream velocity.

Figure 7. Opening shock with different free stream velocity.

Figure 8. Variant of the flow topology according to time.

Figure 8. Variant of the flow topology according to time.

Figure 9. Structure of the forebody.

Figure 9. Structure of the forebody.

Figure 10. Flow topology of a single forebody.

Figure 10. Flow topology of a single forebody.

Figure 11. Pressure and velocity distribution with different forebody radius.

Figure 11. Pressure and velocity distribution with different forebody radius.

Figure 12. Pressure and velocity distribution with different velocity.

Figure 12. Pressure and velocity distribution with different velocity.

Figure 13. Fluid topology of a single parachute.

Figure 13. Fluid topology of a single parachute.

Figure 14. Velocity and pressure distribution along the parachute.

Figure 14. Velocity and pressure distribution along the parachute.

Figure 15. Experimental and CFD velocity distributions behind forebody.

Figure 15. Experimental and CFD velocity distributions behind forebody.

Figure 16. Drag loss vs. forebody radius.

Figure 16. Drag loss vs. forebody radius.

Figure 17. Drag loss vs. forebody–parachute distance.

Figure 17. Drag loss vs. forebody–parachute distance.

Figure 18. Stream path with different forebody–parachute distance.

Figure 18. Stream path with different forebody–parachute distance.

Figure 19. Flow topology with different forebody–parachute distance.

Figure 19. Flow topology with different forebody–parachute distance.

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