Velocity of Sound Measurements in Wet Steam

Collingham, R.E.; Firey, J. C.

doi:10.1021/i260007a005

Cited by 14 publications

(6 citation statements)

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“…For vapor-continuous mixtures the mechanical response of the liquid droplets appears to be very small, as was originally suggested by Collingham and Firey (1963). The compression wave velocity data of Figures 4 and 9 indicate a slip ratio, Kt = Vn/V¡¡, of less than 0.01 to exist in this vapor-continuous mixture.…”

Section: Analysis Of Wave Actionssupporting

confidence: 64%

“…The experimental vapor-continuous mixtures reported previously by Collingham and Firey (1963) and England et al (1966) differed widely in the fineness of mixing of the two phases but very little in wave propagation velocity. Annular flow conditions, wherein the bulk of the liquid flows as a film on the tube wall, existed for the data of Collingham and Firey (1963).…”

Section: Analysis Of Wave Actionsmentioning

confidence: 75%

“…The wave passage time was then read directly from the oscilloscope screen or a photograph of the screen at a wave pressure rise no greater than about 0.1 p.s.i. This method of measuring rarefaction wave velocity is essentially identical to that reported previously (Collingham and Firey, 1963). With the three pressure gages wave velocity could be measured over the entire test section, over the upper or lower half.…”

Section: Methodsmentioning

confidence: 85%

“…Sound velocity measurements in steam-water mixtures, wherein steam was the continuous phase, have been reported (Collingham and Firey, 1963;England et al, 1966). In this paper are presented measured sound velocity values in watercontinuous mixtures, data showing a velocity difference between compression waves and rarefaction waves, and an approximate analysis of wave front events to explain these and the previous data.…”

mentioning

confidence: 90%

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Effect of Slip and Phase Change on Sound Velocity in Steam-Water Mixtures and Relation to Critical Flow

DeJong¹,

Firey²

1968

Ind. Eng. Chem. Proc. Des. Dev.

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Section: Analysis Of Wave Actionssupporting

confidence: 64%

Section: Analysis Of Wave Actionsmentioning

confidence: 75%

Section: Methodsmentioning

confidence: 85%

mentioning

confidence: 90%

See 2 more Smart Citations

Effect of Slip and Phase Change on Sound Velocity in Steam-Water Mixtures and Relation to Critical Flow

DeJong¹,

Firey²

1968

Ind. Eng. Chem. Proc. Des. Dev.

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“…This problem has received considerable attention both experimentally and theoretically in the field of two phase flow. Measurements have been presented by several investigators for the propagation speed of pressure and/or rarefaction waves in wet steam flow [1][2][3] or in vapour-liquid mixtures [4]. Few theoretical researches can be found in the literature concern with predicting the acoustic velocity variation in two phase or wet steam flows.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Acoustic Velocity in a Nonequilibrium Wet Steam Flow

Mahmoud

1991

International Conference on Aerospace Sciences and Aviation Tec

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The acoustic velocity in a nonequilibrium wet steam flow has been investigated theoretically. Modified equations of unsteady onedimensional wet steam flow are taken to describe the propagation of a plane pressure wave of very small amplitude through the wet steam flow. These equations are derived for the conditions of nucleating and non-nucleating wet steam assuming that the vapour phase obeys the perfect gas law and the water and vapour phases are in disequilibrium both thermally and dynamically. The acoustic velocity is shown to depend mainly on the steam wetness, flow nonequilibrium characteristics (i.e., vapour supercooling and slip ratio) and flow pressure; while it slightly affected by the size of droplets and nucleation occurrence.

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The effects of nonequilibrium heat, mass and momentum transfer on two-phase sound speed

Mecredy

Hamilton

1972

International Journal of Heat and Mass Transfer

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A model has been developed which yields the speed and attenuation of acoustic waves as ,a function 01 Irequency in two-phase, one-component media. Nonequilibrium interphase heat, mass. and momentum transfer have been included and are found to be important. At low frequencies, the wave speed approaches the equilibrium value calculated by J(ap/ap),. The wave speed in the high frequency limit is characterized by no heat. mass. or momentum transfer between the liquid and vapor phases. The attenuation is large at high frequencies. A comparison of the theory with experiment shows that the leading edges of large amplitude pressure waves travel at the high frequency limit of the sound speed CP%7, C "g' D!DP

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Velocity of Sound Measurements in Wet Steam

Cited by 14 publications

References 0 publications

Effect of Slip and Phase Change on Sound Velocity in Steam-Water Mixtures and Relation to Critical Flow

Effect of Slip and Phase Change on Sound Velocity in Steam-Water Mixtures and Relation to Critical Flow

Investigation of the Acoustic Velocity in a Nonequilibrium Wet Steam Flow

The effects of nonequilibrium heat, mass and momentum transfer on two-phase sound speed

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