Accession Number : AD1044057

Title :   Flow Visualization of a Rotating Detonation Engine

Descriptive Note : Technical Report,05 Sep 2014,04 Dec 2015


Personal Author(s) : Mizukaki, Toshiharu

Full Text :

Report Date : 05 Oct 2016

Pagination or Media Count : 11

Abstract : The rotating detonation engine (RDE) is a propulsion system that obtains thrust using continuously existing detonation waves. A rotating detonation combustor (RDC) usually has an annular shape that allows detonation waves to propagate in the circumferential direction. In this study, we used a disk-shaped RDC with a combustion chamber with flat-plane glass walls to observe the structure of the phenomena. Self-luminescence, shadowgraphs and schlieren visualization experiments were performed and compared. Results revealed that detonation waves were propagating in a mixture layer of 3 gases, fuel, oxidizer and burned gas at 1,600 to 900 m/s; CJ velocity was 2,376m/s. Waves maintained a three-dimensional complicated wave shape in the disk-shaped combustion chamber with parallel-jet injectors.

Descriptors :   combustion , DETONATION WAVES , propulsion systems , COMBUSTORS , wave propagation

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE