Mixing in coaxial jets
WebThe centre jet consisted of a mixture of helium and oxygen (95\% He and 5\% O$_2$ by volume, 70.4\% He and 29.6\% O$_2$ by mass), while the coflow jet surrounding the centre jet consisted of air. The presence of oxygen in the centre jet was to allow the use of an oxygen flow tagging technique (RELIEF) to obtain non-intrusive velocity measurements … Web11 apr. 2024 · In accordance with high-speed schlieren results, the flow instabilities in the subsonic–supersonic mixing layer with a convective Mach number of 0.19 are investigated in detail. ... “ Effect of convective Mach number on mixing of coaxial circular and rectangular jets,” Phys. Fluids A 3(1), 29 ...
Mixing in coaxial jets
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WebMixing in coaxial jets 163 u 2 u 1 e y x Figure1.Sketch of the injector outlets and development of the flow. Inner and outer jets have diameters D1 = 2cm and D2 =2:7cm, … Web24 mei 2024 · Coaxial Jets are considered an effective way to mix two different fluids. The coaxial jet configuration is widely used in industrial systems, e. g. in combustion …
Web1 mrt. 2001 · The mixing of the supersonic stream coming from such nozzles with a coaxial sonic stream is investigated. The investigation is performed non-intrusively, using digital … Web25 nov. 2009 · When the phase difference is greater than zero, mixing enhancement of coaxial jets can be achieved, but there are maximum phase difference and optimal phase difference. On the contrary, application of adjacent synthetic jets always leads to the mixing reduction when phase difference is less than zero. Download to read the full article text
Web16 jul. 2024 · Increasing the pressure and the velocity ratio enhances turbulent mixing, promotes the entrainment of the outer stream into the inner region, and advances the pinching point of vortical motion to the centerline, thereby leading to a decreased length of the inner dark core. Web1 jul. 2024 · The mixing enhancement of a coaxial jet with a Mach 1.4 primary jet and sonic secondary jet, at different convective Mach numbers, is presented in this study. Rectangular tabs of aspect ratios ( AR = h / w , where h and w are the tab height and width, respectively) 2.0 and 0.75 were employed to manipulate the primary and secondary jets, …
Web23 mei 2012 · An analysis of fuel–oxidizer mixing and combustion induced by swirl coaxial jet injector with a model of gas–gas injection Aerospace Science and Technology, Vol. …
Web25 jan. 2024 · In a coaxial jet configuration the acronym describes the flow regime (T for turbulent, L for laminar) of the jet, coflow and fully mixed downstream, respectively. The regimes are determined a priori based on the flow rate, characteristic length and viscosity, i.e. Reynolds number. fdny emt salary 2021WebMixing of coaxial jets: Comparison of sodium and air experime.. INIS In some parts of Liquid Metal-cooled Reactors, notably the core exit area, hot and cold sodium jets are … fdny ems badgeWebMixing of coaxial jets: Comparison of sodium and air experime.. INIS In some parts of Liquid Metal-cooled Reactors, notably the core exit area, hot and cold sodium jets are mixing. In the turbulent mixing region, temperature fluctuations occur and may cause surface cracking on the lower part of the above core structure. To prevent s hostel dakura pragueWeb1 jul. 2024 · A coaxial jet is composed of an inner jet surrounded by an annular jet and is often employed as an effective method to mix two different fluid streams such as those found in combustion chambers, industrial burners, and air blast atomizers (Balarac and Métais, 2005; Balarac et al., 2007; Safer and Beghidja, 2024 ). fdny ems helmetWeb17 dec. 2024 · In this paper, we present a numerical simulations of near and farfield structure of the Air-Air Mixing in Turbulent Compressible Coaxial Jets. The … hostel dakura prahaWeb13 jul. 2007 · First, the study of the natural coaxial jet, with species injected in the outer jet alone, allows us to understand the role of the coherent vortices on the mixing process during the transition stage. It is observed that the global flow behavior is controlled by the dynamics of the outer shear layer during the transition. hostel desasiswa kptm bangiWeb23 mei 2012 · An analysis of fuel–oxidizer mixing and combustion induced by swirl coaxial jet injector with a model of gas–gas injection Aerospace Science and Technology, Vol. 37 Supercritical Pseudo-Boiling and its Relevance for Transcritical Injection Daniel T. Banuti and Klaus Hannemann 25 July 2014 hosteleria salamanca