Results of the international wet steam modeling project

J Starzmann, FR Hughes, S Schuster… - Proceedings of the …, 2018‏ - journals.sagepub.com
The purpose of the “International Wet Steam Modeling Project” is to review the ability of
computational methods to predict condensing steam flows. The results of numerous wet …

Validation of the CFD tools against in-house experiments for predicting condensing steam flows in nozzles

S Shabani, M Majkut, S Dykas, K Smołka, E Lakzian… - Energies, 2023‏ - mdpi.com
The issues addressed in this work concern the condensing steam flows as a flow of a two-
phase medium, ie, consisting of a gaseous phase and a dispersed phase in the form of …

Control of wetness fraction and liquid droplet size in wet steam two phase flows with hot steam injection

MS Mirhoseini, M Boroomand - Meccanica, 2018‏ - Springer
The sudden expansion of steam in the last stages of turbines causes a nucleation process to
take place and liquid droplets to appear. Parts of these droplets, which grow collide with the …

A pressure based solver for simulation of non-equilibrium wet steam flows

J Fürst, J Halama, V Hric - Journal of Computational and Applied …, 2021‏ - Elsevier
This paper describes a pressure-based solver based on the finite volume approach for the
simulation of high-speed wet steam flows with non-equilibrium condensation. The governing …

Numerical study of non-equilibrium condensation and shock waves in transonic moist-air and steam flows

S Hamidi, MJ Kermani - Aerospace Science and Technology, 2015‏ - Elsevier
Transonic condensing/evaporating moist-air flow through converging-diverging nozzles is
investigated numerically using non-equilibrium thermodynamic model. In this study, the …

Modeling of deviation angle and performance losses in wet steam turbines using GMDH-type neural networks

H Bagheri-Esfe, H Safikhani - Neural Computing and Applications, 2017‏ - Springer
In the present study group method of data handling (GMDH) type of artificial neural networks
are used to model deviation angle (θ), total pressure loss coefficient (ω), and performance …

Comparison between polydispersed and monodispersed models on condensing water-vapor flow in a supersonic convergent-divergent nozzle

MA Faghih Aliabadi… - Modares Mechanical …, 2017‏ - mme.modares.ac.ir
The supercooled steam in low pressure turbines creates the nucleation phenomenon. In
most modeling approaches, to reduce the computation time a monodispersed model is …

Effects of non-equilibrium condensation on deviation angle and performance losses in wet steam turbines

H Bagheri Esfe, MJ Kermani… - Journal of Applied Fluid …, 2016‏ - jafmonline.net
In this paper, effects of non-equilibrium condensation on deviation angle and performance
losses of wet stages of steam turbines are investigated. The AUSM-van Leer hybrid scheme …

Examining the curvature dependency of surface tension in a nucleating steam flow

E Amiri Rad, S Naeemi, B Davoodi - Heat and Mass Transfer, 2020‏ - Springer
Many researches have been performed on the phenomenon of vapor condensation at the
hypersonic stages of the steam turbine. This phenomenon consists of nucleation and droplet …

Evaluation of different nucleation models and droplet radius averaging methods and their combination on condensing steam flow

M Talebi Somesaraee, E Amiri Rad… - Journal of Solid and …, 2015‏ - jsfm.shahroodut.ac.ir
During the course of expansion of steam in LP steam turbines, the vapor becomes
supersaturated, and subsequently nucleates. Then condensation occurs, that causes some …