A1 Journal article (refereed), original research

Results of the International Wet Steam Modeling Project


Publication Details
Authors: Starzmann Jörg, Hughes Fiona R, Schuster Sebastian, White Alexander J, Halama Jan, Hric Vladimir, Kolovratník Michal, Lee Hoon, Sova Libor, Št’astný Miroslav, Grübel Marius, Schatz Markus, Vogt Damian M, Patel Yogini, Patel Giteshkumar, Turunen-Saaresti Teemu, Gribin Vladimir, Tishchenko Victor, Gavrilov Ilya, Kim Changhyun, Baek Jehyun, Wu Xiaoming, Yang Jiandao, Dykas Sławomir, Wróblewski Włodzimierz, Yamamoto Satoru, Feng Zhenping, Li Liang
Publisher: SAGE Publications (UK and US)
Publication year: 2018
Language: English
Related Journal or Series Information: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
ISSN: 0957-6509
eISSN: 2041-2967
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication

Abstract

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-steam methods are compared with each other and with
experimental data for several nozzle test cases. The spread of computed
results is quite noticeable and the present paper endeavours to explain
some of the reasons for this. Generally, however, the results confirm
that reasonable agreement with experiment is obtained by using classical
homogeneous nucleation theory corrected for non-isothermal effects,
combined with Young’s droplet growth model. Some calibration of the
latter is however required. The equation of state is also shown to have a
significant impact on the location of the Wilson point, thus adding to
the uncertainty surrounding the condensation theory.

With respect
to the validation of wet-steam models it is shown that some of the
commonly used nozzle test cases have design deficiencies which are
particularly apparent in the context of two- and three-dimensional
computations. In particular, it is difficult to separate out
condensation phenomena from boundary layer effects unless the nozzle
geometry is carefully designed to provide near-one-dimensional flow.


LUT Focus Areas

Last updated on 2019-13-03 at 12:00