Experimental Results for a High Swirl Ultra Compact Combustor for Gas Turbine Engines

<p>Laser Doppler Velocimeter (LDV) experiments have been conducted within the cavity of an atmospheric pressure small scale Ultra Compact Combustor (UCC). The UCC uses highly swirled flow in a cavity around the outside periphery of the combustor to generate high centripetal acceleration in the fluid. This enhances mixing and leads to a very short axial flame length. Additionally due to the circumferential velocity much of the residence time required by the flame is provided by the circumference of the engine rather than axial length as in conventional combustors. These two effects combine to produce observed flame lengths less than half those of conventional swirl stabilized combustors. These short flame lengths lend themselves to reduced engine size and weight and open the possibility for inter-turbine burning (ITB) reheat cycles for aircraft engines.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p><br>