Impinging of axisymmetric developing jets

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August undefined, 2024

Witrynaan axisymmetric impacting jet We turn to the case of the impinging jet. In the impingement region, it can be argued that the inertia terms in the equations of motion … WitrynaAn analytical research was conducted to study heat transfer from horizontal surfaces to normally impinging circular jets under arbitrary-heat-flux conditions. The laminar …

Dynamics of an impinging jet. Part 1. The feedback phenomenon

WitrynaTurbulence energetics in an axisymmetric impinging jet flow. Physics of Fluids 2024, 31 (5) , ... The effect of inflow conditions on the development of non-swirling versus … 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... dibor cake stand

Two-dimensional Axisymmetric Simulation of Under-expanded …

Witrynathe impinging jet scenario. The wall jet resulting from axisymmetric impinging jets has been studied experimentally [15, 16]; the studies show that the wall jet developed downstream of impingement does demonstrate self-similar behavior. We present a parametric study that characterizes the velocity profile and wall shear stress of the Witryna25 sty 2010 · Abstract The impingement of turbulent jets on solid boundaries has been studied extensively in the past. It has been established that flow parameters in the impingement region are governed by the impingement height, H and the initial … WitrynaSingle axi-symmetric round jet flow was analyzed using computational techniques and validated with experimental results to establish the suitable turbulence model for … dibor bench cushions

IMPINGEMENT OF AXISYMMETRIC DEVELOPING JETS - Taylor

(PDF) Sand erosion with a traversing circular jet - ResearchGate

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. 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 … dibor christmasWitryna2 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 … dibor christmas stockings

"Witryna1 mar 2014 · The optimal impinging jet system was based on four design variables: the spacing between the impinging jets and effusion holes (1.0 ≤ Sp ≤ 5.0), the channel height from impinging jet to effusion surface (1.0 ≤ Ht ≤ 3.0), the mass flux ratio of the crossflow to the impinging jet flow (0.1 ≤ G∗ ≤ 1.3, −1.3 ≤ G∗ ≤ −0.1), and the main … " - Impinging of axisymmetric developing jets

Impinging of axisymmetric developing jets

Mixing Characteristics of Axisymmetric Free Jets From a Contoured ...

Witryna20 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 … Witryna29 cze 2001 · Permissions The differences in mixing performance between axisymmetric turbulent jets issuing from three common types of nozzle, viz. a …

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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. Witryna21 mar 2024 · Screech was first described by Powell in a series of papers on both planar and axisymmetric jets in the 1950s. 10, 11 Powell’s findings, based on experimental observation, can be summarized as follows: 1. Imperfectly expanded jets produce a discrete tone whose wavelength relates to the shock spacing (and thus degree of …

Witryna15 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. WitrynaDesign, development, and validation of concepts for generating passive pulsation in cooling nozzles

Witryna15 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 … 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. …

Witryna1 paź 2005 · Abstract and Figures An experimental study of fully developed confined impinging axisymmetric water vapor jet is completed with turbulent characteristics …

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. citi rewards requirementsWitrynaAn 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 ... diborane tetrachloride was treated with naohWitrynaThe current work experimentally investigates the flowfield characteristics of an under-expanded turbulent jet impinging on a solid surface for various nozzle-to-plate distances 2.46 D j , 1.64 D j , and 0.82 D j ( D j is the jet hydraulic diameter), and nozzle pressure ratios (NPRs) ranging from 2 to 2.77 . Planar particle image velocimetry (PIV) … citi rewards student credit cardWitrynaImpinging jets are widely used as cooling systems in applications such as gas turbines and metal quenching. The electronics industry employs jets of cold air impinging on … citi rewards thailandWitryna12 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 ... citi rewards thank you loginWitrynaSingle 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... citi rewards travelWitryna4 lip 2014 · A numerical investigation to determine the thermal characteristics of an unsubmerged axisymmetric oil jet impinging in a confined space on a stationary disc with uniform heat flux has been undertaken. dibor cushions