Aerodynamic Analysis of a Ducted Re-Entry body

  Kanuganti Nived,  Nalukala Omkar,  K Sai Priyanka

Lower ballistic coefficient offers an optimal re-entry, wherein the vehicle decelerates higher up in the atmosphere thereby decreasing the imposed aerothermal loads. The current numerical study investigates the effects of an add-on duct to the re-entry vehicle. The add-on duct shall circumvent the vehicle from the shoulder to the base. The add-on duct is expected to improve the aerocapture ability of the re-entry vehicle. The drag and ballistic coefficient of the ducted re-entry vehicle will be evaluated and compared with those of the baseline model. Apart from this, the effect of the distance of the duct from the body will also be investigated. In addition to this the variation of drag and ballistic coefficient due to the change in speed regime will also be investigated. All the investigations will be performed using the CFD solver Fluent. The results reveal that the position-1 has the highest drag when the duct-position is at position-1. When the body is tested at Mach 3, the drag coefficient increased for all the positions. The position-2 showcased the highest drag coefficient for the model. The model tested at Mach 5 revealed that the position-2 of the duct has the highest drag coefficient.

Keywords- Ducted re-entry, CFD, Supersonic.

Unique Identification Number - IJEDR2102039
Page Number(s) - 236-242
Pubished in - Volume 9 | Issue 2 | June 2021
DOI (Digital Object Identifier) -    http://doi.one/10.1729/Journal.27236
Publisher - IJEDR (ISSN - 2321-9939)

  Kanuganti Nived,  Nalukala Omkar,  K Sai Priyanka,   "Aerodynamic Analysis of a Ducted Re-Entry body", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.9, Issue 2, pp.236-242, June 2021, Available at :http://www.ijedr.org/papers/IJEDR2102039.pdf