
RAILWAYS BACKGROUND
Quality Industrial
Product is a French Company wich study, design and manufacture Low Noise Fans and others
special products.
Our company has developed
a numerical model in order to compute fan performances.
As we have observed lack
of noise efficient prediction tool, we have aimed to an integrated model, which enable us
to fully optimize fan, pressure and noise wise.
Our technical papers show some examples of our model
optimization features.
1. INTRODUCTION.
All fans models that are
presented in literature are either developed in order to compute : pressure versus
mass flow, or in order to try to predict noise power level at working point. There is no
efficient engineering tool witch can be interactively used in order to help designer to
converge toward optimum fan.
Goal of our work, started
in 1992, was to develop such missing tool.
2. SPECIFICATIONS.
We wanted to develop a
simulation package which will give us " at a glance ", all
informations needed in order to analyze performances of a fan ; and will enable us to
optimize it by, parametricaly, shifting mains engineering details of the fan.
3. NUMERICAL
SIMULATION SENSITIVITY.
Numerical simulation, we
have developed, fulfill the engineering need which is : " what happen if I
modify such and such parameter ".
We have validated our
program with many fans and we are now able to study centrifugal as
wells as axial flow fans

Eurostar Train testing with SARDOU MS9 Fan