Impinging of axisymmetric developing jets

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Witryna1 paź 2005 · Abstract and Figures An experimental study of fully developed confined impinging axisymmetric water vapor jet is completed with turbulent characteristics … WitrynaIn the authors words, the overall goal is make the complex simple, without losing the essence--the virtue--of the complexity.Modeling Axisymmetric Flows: Dynamics of Films, Jets, and Drops is the first book to cover the topics of axisymmetric laminar flows; free-boundary flows; and dynamics of drops, jets, and films.

Axisymmetric wall jet development in confined jet impingement

Witryna12 kwi 2024 · Niimi et al. 8 examined the three dimensional axisymmetric oblique flow on a plane wall around the stagnation point and observed that the wall stress only depends upon the distance from the ... Witryna5 lut 2024 · Supersonic impinging jet flows always occur when aircrafts start short takeoff and vertical landing from the ground. Supersonic flows with residues produced by chemical reaction of fuel mixture have the potential of reducing aircraft performance and landing ground. The adverse flow conditions such as impinging force, high noise … how to set clock on nostalgia microwave

The Impact of an Axisymmetric Jet onto a Normal Ground

Witryna1 mar 2014 · Duarte et al. (2014) did a similar analysis for experimental test results carried out with a 0.072-m diameter nozzle, for plunging water jets issued 1 m above the pool bottom, and a pool depth of... Witrynaof the under-expanded impinging jet can be reproduced by the unsteady 2D axisymmetric simulation. In addition, a possible cause of the feedback mechanism of … WitrynaDespite extensive applications of impinging jets across many industries including nuclear, the study of two-phase, solid loaded, impinging jets is limited, and generally … how to set clock on my laptop

Physical Modelling of Axisymmetric Turbulent Impinging Jets as …

Noise from Impinging, Two‐Dimensional, Underexpanded Jet Flows

WitrynaAbstract: Turbulence statistics in the stagnation region of an axisymmetric jet impinging vertically on a flat plate are reported. The measurements were made in a submerged water jet facility at a Reynolds number of approximately 13,000 based on the nozzle exit velocity and the nozzle diameter. Witryna19 kwi 2006 · This paper reports on an extensive experimental study of the flows due to under-expanded axisymmetric jets impinging on flat plates. The range of plate … how to set clock on my kindleWitrynaAbstract. Mean and fluctuating velocities and shear stresses in an air jet impinging on a flat surface have been obtained by particle image velocimetry. A recirculation zone is … note ++ free download

"Witryna1. Introduction In cutting or chipping processes a robust liquid cooling system is crucial for maintaining the cutting tools and workpieces in the temperature limits. The current type of cooling is an impinging jet cooling, which is a very effective cooling technique with high rates of local heat transfer. " - Impinging of axisymmetric developing jets

Impinging of axisymmetric developing jets

Energies Free Full-Text Numerical Simulation of the Flow and …

Witryna27 mar 2003 · Impulsively started impinging jets were experimentally investigated in a water tank utilizing a fluorescent dye technique. The jets were examined prior to and subsequent to impingement. The impingement surfaces included a flat surface and a two-dimensional semicircular concave surface. WitrynaAn experimental and numerical study of impinging, incompressible, axisymmetric, laminar jets is described, where the jet axis of symmetry is aligned normal to the wall. Particle streak velocimetry (PSV) is used to measure axial velocities along the centerline of the flow field.

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WitrynaLiquid impinging jet at the bottom of the annular cavity is a typical case in the process industry. The jet could have an impact at the bottom center or its peripheral section. The profiled annular cylindrical cavity with the installed electricity heater source is investigated in this paper. Thermal contact irreversibility and liquid drag irreversibility are … WitrynaAn impinging cooling system comprises a jet of high-velocity fluid striking a hot target surface. The fluid jet picks up thermal energy from the hot surface, thus enhancing heat transfer from it. During this process, thermal energy is transported from the hot surface to the fluid via forced convection, raising the fluid temperature in the ...

Witryna2 lip 2024 · A regular vertical pattern of an axisymmetric jet was observed with different flow entrainment rate. While an impinged jet turns to convert a wall jet along a … Witryna19 cze 2024 · The inlet of the mainstream chamber was expanded by 16D in order to ensure full development of the boundary layer of the mainstream. ... R. Effect of jet-jet spacing on convective heat transfer to confined, impinging arrays of axisymmetric air jets. Int. J. Heat Mass Transf. 1994, 37, 2859–2869.

Witryna1 kwi 1998 · The purpose of the present study is three-fold: to experimentally investigate the characteristics which are unique to confined and submerged impinging jets; to contrast these with the flow fields for free-surface and submerged but unconfined jets; and to interpret the respective heat transfer characteristics in light of the differences in … Witryna20 kwi 2006 · In a high-speed subsonic jet impinging on a flat plate, the surface pressure fluctuations have a broad spectrum due to the turbulent nature of the high-Reynolds …

Witryna10 sie 1999 · This paper describes the results of a study examining the flow and acoustic characteristics of an axisymmetric supersonic jet issuing from a sonic and a Mach 1.5 converging–diverging (C–D) nozzle and impinging on a ground plane. Emphasis is placed on the Mach 1.5 nozzle with the sonic nozzle used mainly for comparison.

Witryna5 lip 2000 · Surface pressure distributions and streamline plots are calculated for various impinging jet configurations, including plane, round, and annular jet nozzles. … how to set clock on old panasonic microwaveWitrynacavity formed by the main- and side-nozzleblocksand the jet As suggested flows remainedrelatively fixed and independentof the main-jet by the appearanceof the soundfield observedin shadowgraphs, the useof increasing pressures supply pressureand percent impingement,attempts were made side-jetoperating from zeroto … how to set clock on ottliteWitryna15 lut 2024 · This paper describes the results of methodical investigations of the effect of the Pitot tube on measurements of gas-dynamic parameters of supersonic axisymmetric underexpanded real and model microjets. Particular attention is paid to distortions of Pitot pressure variations on the jet axis associated with the wave structure of the jet and to … how to set clock on neff ovenWitrynaSingle axi-symmetric round jet flow was analyzed using computational techniques and validated with experimental results to establish the suitable turbulence model for simulation of low Reynolds... note 10 5g download modeWitrynaAn analytical research was conducted to study heat transfer from horizontal surfaces to normally impinging circular jets under arbitrary-heat-flux conditions. The laminar thermal and hydraulic boundary layers were divided into five regions of flow. General expressions of heat transfer coefficients were obtained in all the four regions of stagnation and … how to set clock on oxo triple timerWitryna20 kwi 2006 · Detailed measurements of the velocity profiles in a laminar axisymmetric submerged jet of water were taken using a laser-Doppler anemometer. A non-intrusive measurement technique is particularly advantageous in this application owing to the unstable nature of the laminar jet and the destabilizing effect which objects … how to set clock on pioneer wma/mp3Witryna15 lut 2024 · The flow field surrounding an axisymmetric, confined, impinging jet was investigated with a focus on the early development of the triple-layered wall jet structure. how to set clock on nissan rogue