In a parachute, an increase of drag force occurs when the frontal area or the area of its canopy is increased. To prevent the technical problem in deployment of large parachutes, designing parachutes consisting of more than one canopy with smaller frontal area with an air vent at the top of each one is suggested. In this investigation, several formations of canopies are considered, and all are set as concentric and is placed at the top of each other with some distances apart. The canopies are taken as solid bluff bodies (Hemi-spherical cups) for simplicity. The effect of two variables on drag is the main idea of this study. All the formations of the two canopies (Two bluff bodies) are based on two variables; the diameter ratio (The diameter of the upper canopy to the lower canopy), and the distance between the canopies. The drag force is found at maximum, when the upper and the lower canopies have equal diameters, and for when the distance between the canopies is twice the upper canopy diameter.
Skip Nav Destination
ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
August 10–14, 2008
Jacksonville, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4840-1
PROCEEDINGS PAPER
3D Numerical Simulation of a Parachute With Two Air Vented Canopies in a Top-to-Top Formation Available to Purchase
Mohammad J. Izadi,
Mohammad J. Izadi
Bu-Ali Sina University, Hamedan, Iran
Search for other works by this author on:
Reza Baradaran Razzaz
Reza Baradaran Razzaz
Bu-Ali Sina University, Hamedan, Iran
Search for other works by this author on:
Mohammad J. Izadi
Bu-Ali Sina University, Hamedan, Iran
Reza Baradaran Razzaz
Bu-Ali Sina University, Hamedan, Iran
Paper No:
FEDSM2008-55068, pp. 435-443; 9 pages
Published Online:
June 30, 2009
Citation
Izadi, MJ, & Razzaz, RB. "3D Numerical Simulation of a Parachute With Two Air Vented Canopies in a Top-to-Top Formation." Proceedings of the ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. Volume 1: Symposia, Parts A and B. Jacksonville, Florida, USA. August 10–14, 2008. pp. 435-443. ASME. https://doi.org/10.1115/FEDSM2008-55068
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Identification of Minimum Air Flow Design for a Desktop Computer Using CFD Modeling
J. Electron. Packag (September,2001)
An Experimental and Numerical Study of Flow Patterns and Air Entrapment Phenomena During the Filling of a Vertical Die Cavity
J. Manuf. Sci. Eng (October,2010)
Numerical Studies on Drag Reduction of An Axisymmetric Body of Revolution With Antiturbulence Surface
J. Offshore Mech. Arct. Eng (December,2021)
Related Chapters
Research on Design of the Conical Liquid Hybrid Bearing Base on CFD Numerical Simulation
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Pressure Testing
Power Piping
Modeling of SAMG Operator Actions in Level 2 PSA (PSAM-0164)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)