After an interesting start at
the Shell Laboratory in Rijswijk in 1977 I switched to
TNO
(as
member of the 'PULSIM Team') in 1980. There I checked the (dynamic) design of pipe
line systems with respect to the acoustical and mechanical behaviour, for
25+ years.
Pulsation in gas pipe lines is comparable to sound
produced by organ pipes. But instead of a pleasant (musical) sound it may
result in very undesirable (or even dangerous) vibrations. The goal is to
minimize these (inevitable) pulsations by an optimal design.
As their project leader I have also been responsible for
the maintenance and further development of the PULSIM software since the
90's. My last activity for TNO, the new graphical user interface for PULSIM, called P3D,
was released as a very successful step in further increasing efficiency of
acoustic analysis:

I now work at QE International where I have been further
specializing in the area of pulsations related to (high frequency) screw
compressors.
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