K. B. V. Satya Prakash, P. Lovaraju, E. Rathakrishnan
{"title":"Effect of Spacing and Canting on Twinjet Characteristics","authors":"K. B. V. Satya Prakash, P. Lovaraju, E. Rathakrishnan","doi":"10.1134/S0015462825603134","DOIUrl":null,"url":null,"abstract":"<p>The effect of the spacing between two centers of twin nozzles on the propagation of the Mach 0.8 twinjet is studied experimentally. The center-to-center spacings of the twin nozzles studied are equal to 3<i>D</i> and 5<i>D</i> (here, <i>D</i> is the nozzle exit diameter). The twinjets in parallel, inward and outward canting configurations are also studied. The inward and outward canting nozzles with a half angle of interception of 5°, 10°, and 15° are studied. For the inward canting, it is found that the peak Mach number is higher for the inward-canting twinjets than for the parallel and outward-canting twinjets. The interaction of twinjets diminishes with increase in the nozzle spacing.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"60 7","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0015462825603134","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of the spacing between two centers of twin nozzles on the propagation of the Mach 0.8 twinjet is studied experimentally. The center-to-center spacings of the twin nozzles studied are equal to 3D and 5D (here, D is the nozzle exit diameter). The twinjets in parallel, inward and outward canting configurations are also studied. The inward and outward canting nozzles with a half angle of interception of 5°, 10°, and 15° are studied. For the inward canting, it is found that the peak Mach number is higher for the inward-canting twinjets than for the parallel and outward-canting twinjets. The interaction of twinjets diminishes with increase in the nozzle spacing.
期刊介绍:
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.