Experimental investigation of sonic transverse jets in Mach 5 crossflow

Erdem, Erinc; Kontis, Konstantinos

doi:10.1016/j.ast.2020.106419

Cited by 36 publications

(5 citation statements)

References 40 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jet penetration is critical to characterize the atomization characteristics of the transverse liquid jets. Some scholars [5][6][7][8][9][10] introduced one or more of the Weber number, density ratio, pressure ratio, Reynolds number, temperature ratio, and other parameters into the empirical fitting formula, and carried out a lot of research work, but did not get a unified fitting formula.…”

Section: Introductionmentioning

confidence: 99%

Experimental research on the atomization of transverse liquid jet

Fu,

Lu,

Xiao

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The transverse liquid jet is widely used in gas-steam ejection, scramjet engines, and other engineering applications. The research of transverse liquid jets can provide a basis for product design and has a wide range of engineering application value. A high-temperature and high-pressure jet experimental system was designed according to the characteristics of the cooling water jet atomization in the gas-steam ejection power system. The high-speed photography method was used to obtain the macroscopic structural characteristics of the transverse liquid jet. In this paper, experimental research of liquid jets under three conditions was carried out. The trajectory curve of the liquid jet considering momentum ratio and temperature is as follows: y/dj = 2.782q 0.422(x/dj )0.307(T/T0 )-0.785. It can provide theoretical support for improving the efficiency of gas-liquid mixing in power systems, engines, etc.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental research on the atomization of transverse liquid jet

Fu,

Lu,

Xiao

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…As a standard diagnostic tool for fluid dynamics, PIV offers critical insights into traditional aerodynamics and hydrodynamics, such as an understanding of turbulence generation and development mechanisms, [2,3] evaluation of aircraft and aeroengine design, [4][5][6] analysis the interaction between wind turbines with the atmospheric boundary layer, [7] impacts of ocean turbulence on the transport of hydrocarbons bubbles [8] as well as improving biomimetic designs based on fish and other aquatic organisms. [9,10] Meanwhile, it also plays an indispensable role throughout the entire developmental trajectory of numerous innovative materials, which starts from investigating fundamental functionalities [11] and progresses to characterizing the features of the novel designs [12] as well as the performance of pioneering devices.…”

Section: Introductionmentioning

confidence: 99%

Meta‐Lens Particle Image Velocimetry

Liu,

Zhao,

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

Fluid flow behavior is visualized through particle image velocimetry (PIV) for understanding and studying experimental fluid dynamics. However, traditional PIV methods require multiple cameras and conventional lens systems for image acquisition to resolve multi‐dimensional velocity fields. In turn, it introduces complexity to the entire system. Meta‐lenses are advanced flat optical devices composed of artificial nanoantenna arrays. It can manipulate the wavefront of light with the advantages of ultrathin, compact, and no spherical aberration. Meta‐lenses offer novel functionalities and promise to replace traditional optical imaging systems. Here, a binocular meta‐lens PIV technique is proposed, where a pair of GaN meta‐lenses are fabricated on one substrate and integrated with a imaging sensor to form a compact binocular PIV system. The meta‐lens weigh only 116 mg, much lighter than commercial lenses. The 3D velocity field can be obtained by the binocular disparity and particle image displacement information of fluid flow. The measurement error of vortex‐ring diameter is ≈1.25% experimentally validates via a Reynolds‐number (Re) 2000 vortex‐ring. This work demonstrates a new development trend for the PIV technique for rejuvenating traditional flow diagnostic tools toward a more compact, easy‐to‐deploy technique. It enables further miniaturization and low‐power systems for portable, field‐use, and space‐constrained PIV applications.

show abstract

“…Kitson [18] investigated the influence of jet-induced fluid-solid interaction on aircraft performance and stability. Through tests, Erdem [19] examined the sonic transverse jets at Mach 5 crossflow across a flat plate with a sharp leading edge. The interaction zone between the incoming crossflow developing on the flat plate and the jet was investigated, and jet penetration boundaries were defined.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation on Nosebleed Air Jet Control for Hypersonic Vehicle

et al. 2023

View full text Add to dashboard Cite

A new idea of nosebleed air jets with strong coupled internal and external flow is put forward using the lateral jet control principle to improve the maneuverability and fast reaction capabilities of hypersonic vehicles. The hypersonic vehicle’s nose stagnant high-pressure and high-temperature gas is utilized as the drive source for long-term jet control. The significant coupled jet interaction of the internal and external flow changes the aerodynamic characteristics. As a result, the structure is basic and does not rely on any external source to achieve flight attitude control. The complicated flow characteristics of the nosebleed jet in supersonic crossflow surrounding the vehicle were numerically and experimentally investigated. The jet interaction characteristics and the aerodynamic characteristic changes generated by the nosebleed air jet are verified by comparing the flow field with and without the jet. Results indicate that the nosebleed air jet alters the center-of-pressure coefficient, which is subsequently coupled with the interference aerodynamic force. This results in a variation in pitch moment. The jet decreases the pitching moment coefficient when compared with the case without a jet. It is probable that combining nosebleed air jets with model centroid adjustment yields an optimal trim angle of attack.

show abstract

Experimental investigation of sonic transverse jets in Mach 5 crossflow

Cited by 36 publications

References 40 publications

Experimental research on the atomization of transverse liquid jet

Experimental research on the atomization of transverse liquid jet

Meta‐Lens Particle Image Velocimetry

Numerical and Experimental Investigation on Nosebleed Air Jet Control for Hypersonic Vehicle

Contact Info

Product

Resources

About