Numerical study of hot launch of missile inside a tube. (December 2014)

• Record Type: Journal Article
• Authors: Sinha, PK; Chakraborty, Debasis
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 228:Number 14(2014)
• Page Start: 2604
• Page End: 2611
• Publication Date: 2014-12
• Subjects: Jet impingement -- computational fluid dynamic -- tube launch; Aeronautics -- Periodicals; Astronautics -- Periodicals; Airplanes -- Design and construction -- Periodicals; Aerospace industries -- Periodicals; 629.1
• DOI: 10.1177/0954410014522609
• Languages: English
• ISSNs: 0954-4100

Abstract

The impingement of hot rocket motor plume inside a canister is simulated numerically by solving three-dimensional Reynolds Averaged Navier–Stokes equations using commercial software. The computed methodology is first validated for cold flow jet impingement in a circular tube for different chamber pressure and the simulations captured all the finer aspects of blow-by flow conditions as reported in the literature. A very good comparison is obtained between experimental and numerical surface pressure distribution. The validated methodology is applied to simulate the hot launch of a missile from a canister. It is observed that for low annular gap between missile body and canister the motor plume interaction became intense and gave rise to a very significant base drag which may constrain the motion of the missile inside the canister.