• Hatkar Rajender
• K Vishnu vardhan
• Anila K
• G Blessy deborah
• Manikandan S

All space missions must have different parameters to achieve mission objectives. Cost of building expendable launch vehicle is higher than building a re-entry vehicle for multiple mission. In this paper we use powered re-entry vehicle using retro engines. The re-entry vehicle gravity force acting toward earth centre and both drag & thrust force acting opposite to the gravity force. To slow down the re-entry vehicle opposite forces will be equal. This paper determines minimum decent distance(altitude) by calculating drag force, gravity force and thrust force through computational fluid dynamics.

re-entry vehicle, Powered re-entry, Re-entry Motion, Minimum decent distance, Drag Force

"Determination of minimum descent distance for power landing of re entry vehicle in earth’s atmosphere", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 5, page no.b387-b396, May-2021, Available :http://www.jetir.org/papers/JETIR2105180.pdf

"Determination of minimum descent distance for power landing of re entry vehicle in earth’s atmosphere", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 5, page no. ppb387-b396, May-2021, Available at : http://www.jetir.org/papers/JETIR2105180.pdf