Effect of Lip Thickness on Under-expanded Coaxial Sonic Jet Mixing
Main Article Content
Abstract
A detailed numerical analysis was carried out to study the behaviour of an under-expanded coaxial jet at nozzle pressure ratio of 3. The primary nozzle exit lip thickness considered in this study was 0.7mm, 2.65mm and 4.9mm. Centreline pressure decay, Mach contour and density contour were examined to understand the under-expanded coaxial jet characteristics. The findings demonstrated that the mixing of lip 4.9mm is superior when compared to the other lip thicknesses. The study also found that the core length reduces as the lip thickness is increased. The result also reveals that the shock crossover in the primary core of the under-expanded coaxial jet is strongly influenced by the nozzle lip thickness.
Article Details
Issue
Section
Articles
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms: a. Authors retain copyright and grant the journal right of first publication, with the work two years after publication simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).