A Study of Cavitation-Ignition Bubble Combustion (Paperback) (ISBN-13: 9781287257790)

We present the results of an experimental and computational study of the physics and chemistry of cavitation-ignition bubble combustion (CIBC), a process that occurs when combustible gaseous mixtures are ignited by the high temperatures found inside a rapidly collapsing bubble. The CIBC process was modeled using a time-dependent compressible fluid-dynamics code that includes finite-rate chemistry. The model predicts that gas-phase reactions within the bubble produce CO and other gaseous by-products of combustion. In addition, heat and mechanical energy release through a bubble volume-expansion phase are also predicted by the model. We experimentally demonstrate the CIBC process using an ultrasonically excited cavitation flow reactor with various hydrocarbon-air mixtures in liquid water. Low concentrations (

Author: Nasa Technical Reports Server (Ntrs)
ISBN-10: 1287257798
ISBN-13: 9781287257790
Publisher: Bibliogov
Language: English
Published: 07/29/2013
Pages: 38
Format: Paperback
Weight: 0.19lbs
Size: 9.69h x 7.44w x 0.08d