Indian Journal of Science and Technology

The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off


The present paper investigates the heat flux and drag reduction techniques on a hypersonic re-entry vehicle. Many researchers have reported a reduction in these parameters by the introduction of an aero spike at the stagnation point of the blunt head of a re-entry vehicle. The effect of introducing a secondary surface (called the secondary spike), along with the aero spike, on the blunt head is discussed in this work. The study has been carried out by varying the location of the secondary spike with respect to the axis of the vehicle for a set of free stream conditions. Also, the effect of variation in free stream conditions on a re-entry vehicle with a primary and secondary spike has been investigated. It has been observed that some configurations work well for some free stream conditions but fail in comparison to a single spiked body for some other conditions.
User