Experimental investigation on the second dominant frequency of pressure oscillation for sonic steam jet in subcooled water

Qiu, Binbin; Yan, Junjie; Liu, Jiping; Chong, Daotong; Zhao, Quanbin; Wu, Xiaoming

doi:10.1016/j.expthermflusci.2014.07.002

Cited by 55 publications

(18 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, although the second dominant frequency has been found under some test conditions, the basic information is still indistinct, such as the characteristic and generating mechanism of the second dominant frequency. In addition, for some conditions, the oscillation amplitude of the second dominant frequency is higher than that of the first dominant frequency based on the report of Qiu et al [24].…”

Section: Introductionmentioning

confidence: 83%

“…The influence of steam mass flux, subcooled water temperature and the design pressure ratio on the condensation oscillation frequency was investigated. Besides the condensation oscillation frequency, another dominant frequency was found in the frequency spectrum under some test conditions [24], as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 95%

“…Based on the varying of steam jet length, a one-dimensional oscillation model was proposed to predict the steam condensation oscillation frequency and the predicted frequency well agreed with the dominant frequency they measured. Qiu et al [23][24][25] also investigated the pressure oscillation with sonic and supersonic jets. The influence of steam mass flux, subcooled water temperature and the design pressure ratio on the condensation oscillation frequency was investigated.…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Experimental and theoretical study on the second dominant frequency in submerged steam jet condensation

Chong

Zhao

Yuan

et al. 2015

Experimental Thermal and Fluid Science

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Experimental and theoretical study on the second dominant frequency in submerged steam jet condensation

Chong

Zhao

Yuan

et al. 2015

Experimental Thermal and Fluid Science

Self Cite

View full text Add to dashboard Cite

“…For the second domain frequency, Qiu et al (2014b) have demonstrated that it is generated by the steam bubble through the analysis on the steam bubble photos. Additionally, with measuring the steam bubble diameter from the photo, the steam bubble oscillation frequency is estimated by using the bubble oscillation characteristic frequency equation which is derived by Leighton (1994) and Song and Kim (2011) based on the Rayleigh equation.…”

Section: Flow Pattern and Pressure Oscillationmentioning

confidence: 99%

Pressure oscillation and steam cavity during the condensation of a submerged steam jet

Zhao

Chen

Yuan

et al. 2015

Annals of Nuclear Energy

Self Cite

View full text Add to dashboard Cite

a b s t r a c tSteam jet condensation is important in many industrial applications. In this work, the pressure oscillation and steam jet patterns during submerged jet condensation in quiescent water is investigated experimentally. Firstly, it is found that even at stable condensation region, the steam cavity length varies all the time and steam bubbles separate from the steam cavity periodically. With the variation of steam cavity length and separated bubble oscillation, condensation also undergoes oscillation. Along the axial direction, the pressure oscillation intensity increases first and then decreases gradually. There is an distinct pressure oscillation peak, and the peak position varies over a length-to-diameter ratio range of X/D = 2 to X/D = 7. The axial position of pressure oscillation peak corresponds to the end of steam cavity. Moreover, oscillation energy analysis shows that the oscillation energy generated by separated steam bubble is much higher than that generated by the steam cavity length variation. Finally, based on the relationship between the axial distribution of pressure oscillation and the steam cavity, a method is proposed to determine the maximum steam cavity length by measuring the pressure oscillation distributions. The predicted deviation is only in range of ±16% for the test conditions.

show abstract

“…The dominant frequency was found at frequency of 120-400 Hz in all condensation regimes. Qiu et al (2014b) considered that the peaks in this frequency band were introduced by the periodic variation in volume of steam bubbles. In high frequency region, some peaks with frequency higher than 7000 Hz were found only in transition and capillary wave regimes.…”

Section: Spectral Analysismentioning

confidence: 99%

Feature of acoustic sound signals involved in vapor bubble condensation and its application in identification of condensation regimes

Tang

Yan

Sun

2015

Chemical Engineering Science

View full text Add to dashboard Cite

Experimental investigation on the second dominant frequency of pressure oscillation for sonic steam jet in subcooled water

Cited by 55 publications

References 18 publications

Experimental and theoretical study on the second dominant frequency in submerged steam jet condensation

Experimental and theoretical study on the second dominant frequency in submerged steam jet condensation

Pressure oscillation and steam cavity during the condensation of a submerged steam jet

Feature of acoustic sound signals involved in vapor bubble condensation and its application in identification of condensation regimes

Contact Info

Product

Resources

About