Experimental study of a turbulent cross jet

Rho, Byung Joon; Kim, Jang K.; Dwyer, H. A.

doi:10.2514/3.25120

Cited by 19 publications

(16 citation statements)

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“…Therefore, the size and velocity are measured by frequency and relative phase (1990) divided air-cross jet flows in two region, the large and small elongation region. However, in this liquid-liquid impinging study, the results were a bit different from those of Rho et al (1990). There was no point that the difference in the gradient was remarkable so as to divide the spray regions into the large and small elongation regions.…”

Section: Test Facilities and Experimental Arrangementmentioning

confidence: 40%

“…There was no point that the difference in the gradient was remarkable so as to divide the spray regions into the large and small elongation regions. According to Rho et al (1990), there was the region where the spray half-width(bl) along the short-axis direction(Z) was contracted after impingement. The contraction region, however, could not be examined in this study.…”

Section: Test Facilities and Experimental Arrangementmentioning

confidence: 99%

“…Similarly, the gradient of the halfwidth(!h) along the short-axis direction(Z) decreased with increasing the momentum ratio. Rho et al (1990) reported the work on the flow field of the air-cross jet that the half-width(bl) of the cross section along the short-axis direction was contracted after collision of the jets, in the initial region where the inertia force to keep moving to the Z-axis direction with the half of the impinging angle influenced strongly, but it was elongated with being far from the initial region. Moreover, the half-width(b:!)…”

Section: Spray Half-widthmentioning

confidence: 99%

“…As a result, the spray half-widthl e.) was elongated in the initial region, but it was contracted in other region. Figure 5 indicates the results of this study at MR= 1.19 comparing with Rho et al(1990). Where the Reynolds number was 5.2 X 1()4.…”

Section: Spray Half-widthmentioning

confidence: 99%

“…Kim. (1987) and Rho et al (1990) analyzed the air-air impinging jet formed by the impingement of the round jet. However, many researches for the liquid-liquid impinging jet have not been carried out until now.…”

Section: Introductionmentioning

confidence: 99%

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An experimental study on turbulent characteristics of an impinging split-triplet injector

Kang

Ryu

Kwon

et al. 2001

KSME International Journal

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This paper presents turbulent characteristics of an impinging F-0-0-F type injector in which fuel and oxidizer impinge on each other to atomize under the different momentum ratio. Water was used as an inert simulant liquid instead of fuel and oxidizer. The droplet size and velocity in the impinging spray flow field were measured using a PDPA. The gradient of the spray halfwidthtb-) along the long-axis direction declined throughout the entire spray flow field with increasing the momentum ratio from 1.19 to 6.48. However, the gradient of the half-widthfb.) along the short-axis direction decreased with increasing the momentum ratio. The turbulence intensity and turbulent kinetic energy were converged into the center of the initial region with increasing the momentum ratio. As the momentum ratio increased from MR=1.19 to MR=6. 48, the turbulent shear stress decreased. The results of this study can be used for the design of an impinging type injector for liquid rockets.

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Section: Test Facilities and Experimental Arrangementmentioning

confidence: 40%

Section: Test Facilities and Experimental Arrangementmentioning

confidence: 99%

Section: Spray Half-widthmentioning

confidence: 99%

Section: Spray Half-widthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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