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**Harvard**

Hempel, J. och Lindgren, O. (2014) *Development of a two-way fluid-structure interaction model for pipe system analysis*. Göteborg : Chalmers University of Technology

** BibTeX **

@mastersthesis{

Hempel2014,

author={Hempel, Janna and Lindgren, Oskar},

title={Development of a two-way fluid-structure interaction model for pipe system analysis},

abstract={Pipe systems in nuclear power plants must be able to withstand forces caused by changes
in the system conditions. To investigate how the pipe system reacts due to these changes
mechanics and structural mechanics calculations are performed . At Ringhals AB, a two
step simulation is performed where the output from the
uid mechanics calculations is
used as an input for the structural mechanics calculations. This one-way
uid-structure
interaction does not take into account that the structural movement can in
uence the
ow and pressure of the
uid, which may yield higher forces that the system has to
withstand.
This master thesis develops a method for modelling two-way
uid-structure interaction,
by using the method of characteristics to transform the partial differential equations of
mass and momentum into ordinary differential equations yielding the pressure and
ow
of the
uid. Matlab is used for calculating these properties, and the toolbox CalFEM
is used when calculating the structural mechanics, the two solvers are coupled to obtain
the two-way interaction.
The developed Matlab program show satisfactory results both when comparing the two
solvers separately to software used at Ringhals AB, and when comparing with results
obtained from Adina, a software for calculating two-way
uid-structure interaction. The
Matlab program provides the user a familiar and easy way of building pipe systems and
evaluating how the
uid properties changes and how the pipe system reacts on these
changess.},

publisher={Institutionen för teknisk fysik, Chalmers tekniska högskola},

place={Göteborg},

year={2014},

note={54},

}

** RefWorks **

RT Generic

SR Electronic

ID 209363

A1 Hempel, Janna

A1 Lindgren, Oskar

T1 Development of a two-way fluid-structure interaction model for pipe system analysis

YR 2014

AB Pipe systems in nuclear power plants must be able to withstand forces caused by changes
in the system conditions. To investigate how the pipe system reacts due to these changes
mechanics and structural mechanics calculations are performed . At Ringhals AB, a two
step simulation is performed where the output from the
uid mechanics calculations is
used as an input for the structural mechanics calculations. This one-way
uid-structure
interaction does not take into account that the structural movement can in
uence the
ow and pressure of the
uid, which may yield higher forces that the system has to
withstand.
This master thesis develops a method for modelling two-way
uid-structure interaction,
by using the method of characteristics to transform the partial differential equations of
mass and momentum into ordinary differential equations yielding the pressure and
ow
of the
uid. Matlab is used for calculating these properties, and the toolbox CalFEM
is used when calculating the structural mechanics, the two solvers are coupled to obtain
the two-way interaction.
The developed Matlab program show satisfactory results both when comparing the two
solvers separately to software used at Ringhals AB, and when comparing with results
obtained from Adina, a software for calculating two-way
uid-structure interaction. The
Matlab program provides the user a familiar and easy way of building pipe systems and
evaluating how the
uid properties changes and how the pipe system reacts on these
changess.

PB Institutionen för teknisk fysik, Chalmers tekniska högskola,PB Institutionen för teknisk fysik, Chalmers tekniska högskola,

LA eng

LK http://publications.lib.chalmers.se/records/fulltext/209363/209363.pdf

OL 30