Zobrazeno 1 - 10
of 232
pro vyhledávání: '"T.G. Theofanous"'
Autor:
T.G. Theofanous
Publikováno v:
Annual Review of Fluid Mechanics. 43:661-690
In this review, we consider and unify all aspects of the dynamics of Newtonian and viscoelastic liquid drops in high-speed gas flows, including shock waves. The path to understanding is opened by novel, laser-induced fluorescence visualizations at sp
Autor:
S. Angelini, T. Salmassi, T.G. Theofanous, Walter W. Yuen, X. Chen, James J. Sienicki, K. Freeman
Publikováno v:
Nuclear Engineering and Design. 189:7-57
Lower head integrity under steam explosion loads in an AP600-like reactor design is considered. The assessment is the second part of an evaluation of the in-vessel retention idea as a severe accident management concept, the first part (DOE:ID-10460)
Publikováno v:
Nuclear Engineering and Design. 189:163-178
The fragmentation behavior of molten steel drops forced to explode in sustained pressure fields is investigated. The effect of pressure amplitude, melt superheat, and coolant velocity is considered. The data include external images from high-speed mo
Publikováno v:
Nuclear Engineering and Design. 189:59-102
An overall verification approach for the PM-ALPHA code is presented and implemented. The approach consists of a stepwise testing procedure focused principally on the multifield aspects of the premixing phenomenon. Breakup is treated empirically, but
Autor:
N. Zuber, B.W. Spencer, Mamoru Ishii, G.E. Wilson, J Valente, J.R. Lehner, A.E Dukler, Peter Griffith, B. R. Sehgal, R.E Henry, Wolfgang Wulff, F.J Moody, J.M Healzer, B.E. Boyack, T.G. Theofanous, Martin Pilch, S. Levy
Publikováno v:
Nuclear Engineering and Design. 186:1-21
Scaling has been identified as a particularly important element of the Severe Accident Research Program because of its relevance not only to experimentation, but also to analyses based on code calculations or special models. Recognizing the central i
Publikováno v:
Reliability Engineering & System Safety. 62:51-58
An important part of the AP600 design, as well as of the design certification review by the US Nuclear Regulatory Commission, is devoted to ensuring defense in depth through deep consideration and management of severe accidents. Going beyond the trad
Publikováno v:
Nuclear Engineering and Design. 184:163-181
As computations of transient, multidimensional, multiphase flows are becoming increasingly more realistic, so increases the demand for their detailed experimental validation. Key in this task is the evolution of flow patterns, and the usual approache
Publikováno v:
Nuclear Engineering and Design. 177:303-319
This paper elaborates on the constitutive description of the `Microinteractions' model used by the computer code ESPROSE.m to simulate the propagation phase of steam explosions. The approach is based on a series of experiments, in the SIGMA-2000 faci
Publikováno v:
Nuclear Engineering and Design. 177:285-301
This work addresses certain fundamental aspects of the premixing phase of steam explosions. At issue are the multifield interaction aspects under highly transient, multidimensional conditions and in the presence of strong phase changes. They are addr
Publikováno v:
Nuclear Engineering and Design. 169:109-130
In-vessel retention of corium has been approved to be part of the severe accident management strategy for IVO's Loviisa plant. The approach selected takes advantage of the unique features of the plant such as a low power density, a reactor pressure v