Results 251 to 260 of about 6,802 (281)

A comparison of modelling methods for polydispersed wet‐steam flow

International Journal for Numerical Methods in Engineering, 2003
AbstractSpontaneous nucleation of water droplets in moist air or steam may result in droplet spectra which are complex in shape and which span a broad range of sizes. This is particularly true if the flow is transonic or supersonic with shock waves present, or if an already droplet‐laden flow re‐expands to give secondary or tertiary nucleations ...
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Modelling droplet size distributions in polydispersed wet-steam flows

International Journal of Heat and Mass Transfer, 2000
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White, A. J., Hounslow, M. J.
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Numerical modeling and high-order scheme for wet steam flow

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2015
A mathematical model of three-dimensional nonequilibrium condensing wet-steam flow is established in Eulerian form, based on conservation laws for a mixture of steam and water droplets. The method of moments is introduced in modeling the droplet spectrum.
Zhirong Lin, Xin Yuan
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Wet Steam Flow Modeling in a General CFD Flow Solver

35th AIAA Fluid Dynamics Conference and Exhibit, 2005
The focus of this paper is on the implementation of a two-phase wet-steam model in a general-purpose CFD flow solver. The formation of liquid-droplets in a homogeneous non-equilibrium condensation process is defined by a phase-change model which is based on classical nucleation theory.
Laith Zori, Frank Kelecy
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Numerical Sensitivity Study and Calibration of Non-Equilibrium Wet Steam Model

Volume 5B: Oil and Gas Applications; Steam Turbines, 2013
Comparisons between one- and two-dimensional experiments and non-equilibrium wet steam CFD simulations are conducted paying attention not only to pressure profiles and wetness but also to the more difficult to match droplet diameter. To achieve the objective of optimizing the match of data the heat transfer model between the droplet and its surrounding
F. J. Moraga, L. Wang, W.-M. Ren
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Numerical modelling of condensing wet-steam flows

2018
This thesis was digitised by the British Library from microfilm. You can acquire a single copy of this thesis for research purposes by clicking on the padlock icon on the thesis file. Please be aware that the text in the supplied thesis pdf file may not be as clear as text in a thesis that was born digital or digitised directly from paper due to the ...
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Modelling of the batch treatment of wet granular solids with superheated steam in fluidized beds

Chemical Engineering and Processing: Process Intensification, 1999
This article deals with the batch treatment of granular solids with superheated steam. The treatment of these solids by fluidisation, drying and roasting is described. The benefits of this treatment above other alternatives are energety savings, better product quality and higher plant safety.
Heinrich, Stefan, Krüger, Gerhard, Mörl, Lothar   +2 more
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Study of Wet Steam Flow in Model Steam Turbines

Thermal Engineering, 2023
V. E. Mikhailov, L. A. Khomenok, N. Yu. Bokuchava, A. A. Ivanovsky   +3 more
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Numerical Modelling of Dry and Wet Steam Flows in Converging-Diverging Nozzles

2014
Problem of water erosion in low pressure steam turbine stage is serious due to the formation of water droplets which travel at supersonic speed within the blade channel. The impact of these droplets could cause damage to turbine blade, and effort to understand the underlying mechanism of this type of flow has been devoted many years ago.
Hasril Hasini, Norhazwani Abd Malek, Mohd. Zamri Yusoff   +2 more
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Comparative study of homogeneous nucleation rate models for wet steam condensing flows

Korean Journal of Chemical Engineering, 2016
To accurately describe the homogeneous nucleation process in a wet-steam dual-phase flow and to improve the reliability of computations of the condensing steam flow, classical homogeneous nucleation theories were derived and summarized based on the molecular agglomerate thermodynamic free energies.
Zhonghe Han, Xu Han, Hengfan Li, Peng Li
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