Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Yu, Zeting; Yuan, Hongsheng; Chen, Chong; Yang, Zhida; Tan, Sichao

doi:10.1016/j.ijheatmasstransfer.2016.03.047

Cited by 31 publications

(2 citation statements)

References 35 publications

(47 reference statements)

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“…PDOs have been studied theoretically (Doḡan et al, 1983;Mawasha et al, 2001;Padki et al, 1992Padki et al, , 1991Stenning and Veziroglu, 1965) and experimentally (Çomaklı et al, 2002;Ding et al, 1995;Guo et al, 1996;Ozawa et al, 1979;Yüncü et al, 1991) in the past decades. Recent studies on PDO have been reported in the condition of the mini channel (Yu et al, 2016) and microchannel system (Zhang et al, 2010). However, due to the complexity of the process, the mechanisms controlling the characteristics of the PDO and the impact of the oscillations in the heat transfer and pressure drop remain major research challenges.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the characteristics of pressure drop oscillations and their interaction with short-period oscillation in a horizontal tube

Park

Fernandino

Dorao

2018

International Journal of Refrigeration

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Two-phase flow instabilities have been widely studied in the literature. However, there are still open questions on the interaction between the modes of instabilities. In this work, the interaction between long-period oscillations (pressure drop oscillations) and short-period oscillations (superimposed density wave oscillations) are studied in a horizontal heated pipe, experimentally. The different interacting modes are presented in an instability map in terms of the mass flux and the pressure drop in the heated channel. Especially, the limit cycles of the oscillations regarding on the mass flux and pressure drop obtained. The mechanism of interaction between the long-period oscillation (pressure drop oscillation) and short-period oscillation (super-imposed density wave oscillation) was identified based on obtained limit cycles in the experiments. Research highlights► Limit cycle for the superimposed density wave oscillation on the pressure drop oscillation is obtained from the experiment. ► The mechanism of interaction between the pressure drop oscillation and the super-imposed density wave oscillation was identified ►The boundaries between the different instability modes are identified regarding on pressure drop and subcooling.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the characteristics of pressure drop oscillations and their interaction with short-period oscillation in a horizontal tube

Park

Fernandino

Dorao

2018

International Journal of Refrigeration

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“…Qi et al [3] found long-period oscillations instabilities(50-65s) in liquid nitrogen flow boiling in 1.042 and 1.931 mm vertical tubes. Yu et al [10] observed PDOs, DWOs appearing when the outlet quality was -0.001 to 0.012 in the experiments It can be seen that the current researches are mainly focused on experimental studies, but there is no clear understanding on the mechanism of the flow boiling instabilities.…”

Section: Introductionmentioning

confidence: 99%

Flow boiling instabilities of nitrogen in horizontal small diameter tube

Zhang

Liu

2018

MATEC Web Conf.

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The flow boiling instability characteristics of nitrogen flow boiling in a horizontal small diameter tube were numerically studied, and a numerical model coupled with two phase flow boiling and system flow supplying was developed. With the steady state solution of the model, the flow boiling characteristic curve and flow supplying curve were obtained. The flow boiling characteristic curve was affected by the heat flux and inlet subcooling, meanwhile the flow supplying curve was affected by the total system pressure drop and friction feature of the flow supplying section. With the transient solution of the model, The dynamical response of pressure drop oscillations type (PDOs) instability of two phase flow were investigated, occurring region and trigging conditions were also obtained.

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Review on effect of two-phase interface morphology evolution on flow and heat transfer characteristics in confined channel

Deng

Liu

et al. 2020

Heat Mass Transfer

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Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Cited by 31 publications

References 35 publications

Experimental study on the characteristics of pressure drop oscillations and their interaction with short-period oscillation in a horizontal tube

Experimental study on the characteristics of pressure drop oscillations and their interaction with short-period oscillation in a horizontal tube

Flow boiling instabilities of nitrogen in horizontal small diameter tube

Review on effect of two-phase interface morphology evolution on flow and heat transfer characteristics in confined channel

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