Numerical solution of steam flow in a nozzle using different non-equilibrium condensation models

Halama, Jan; Hric, Vladimír

doi:10.1016/j.amc.2015.05.067

Cited by 16 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hamidi [26] proposed an inviscid nonequilibrium thermodynamic model. Besides, for pure steam, Bakhtar [27], Young [28], Halama [29] and Chang [30], Jabir [31], Wang [15] and Ding [32] built two or three-dimensional mathematical models for vapor condensation.…”

Section: Introductionmentioning

confidence: 99%

Feature Extraction of Oscillating Flow With Vapor Condensation of Moist Air in a Sonic Nozzle

Ding

Wang

et al. 2020

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

The sonic nozzle is commonly used in flow measurement. However, the non-equilibrium condensation phenomenon of moist air in the nozzle has a negative effect on the measuring accuracy.To investigate this complex phenomenon, the experiments on the oscillating condensation flow of moist air were conducted by an adjustable humidification apparatus with different relative humidity (0-100%), temperature (30-50°C) and carrier gas pressure (1-6 bar), where the micro size pressure measuring system was designed by Bergh-Tijdeman (B-T) Model. The accurate mathematical model of nonequilibrium condensation was also built and validated by the experimental data of time-averaged pressure distribution. Then, the frequency and intensity of pressure fluctuation of oscillating flow at a wide range of operation condition were obtained combining experimental data and physical simulation model. Importantly, a new semi-empirical relation of dimensionless frequency deduced from dimensionless analysis was identified accurately by experimental data. Finally, the signal nonstationarity was also observed by using the continuous wavelet transform (CWT). The instantaneous frequency saltation and the energy attenuation of pressure signals were observed in the condensation flow.

show abstract

Section: Introductionmentioning

confidence: 99%

Feature Extraction of Oscillating Flow With Vapor Condensation of Moist Air in a Sonic Nozzle

Ding

Wang

et al. 2020

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

show abstract

“…Nowadays, the numerical research on condensing steam flows modelling in nozzles and turbine cascades are still valid and are under consideration of many researchers [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

An attempt to make a reliable assessment of the wet steam flow field in the de Laval nozzle

et al. 2018

View full text Add to dashboard Cite

This paper presents the results of research on the wet steam flow with spontaneous condensation in the de Laval nozzle. A comparison is made between the results of numerical modelling performed for two cases of boundary conditions obtained using an in-house CFD code and the Ansys CFX commercial package. The numerical modelling results are compared to the results of experimental testing carried out on an in-house laboratory steam tunnel. The differences between the numerical results produced by the two codes in terms of place and intensity of condensations of steam to water point to the difficulty in correct modelling of this type of flows and emphasize the need for further studies in this field.

show abstract

Development of a two-fluid model for predicting phase-changing flows inside thermal vapor compressors used in thermal desalination systems

Sharifi

Abadi

Kouhikamali

2021

Applied Thermal Engineering

View full text Add to dashboard Cite

Numerical solution of steam flow in a nozzle using different non-equilibrium condensation models

Cited by 16 publications

References 18 publications

Feature Extraction of Oscillating Flow With Vapor Condensation of Moist Air in a Sonic Nozzle

Feature Extraction of Oscillating Flow With Vapor Condensation of Moist Air in a Sonic Nozzle

An attempt to make a reliable assessment of the wet steam flow field in the de Laval nozzle

Development of a two-fluid model for predicting phase-changing flows inside thermal vapor compressors used in thermal desalination systems

Contact Info

Product

Resources

About