OAO Ivatsevichdrev - Siempelkamp
OAO Ivatsevichdrev - Siempelkamp
OAO Ivatsevichdrev - Siempelkamp
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SIeMpelkAMp | nUCLeAR teCHnoLoGy 54 55<br />
accidental closure of feed water pipes,<br />
and theoretical incident simulations. “All<br />
of these investigations and their effects,<br />
in particular performance in the event of<br />
a failure, would be ex perimentally too<br />
expensive, too time-consum ing, or even<br />
impossible. We were able to support<br />
the power plant operator here in an<br />
efficient and cost-optimized manner,”<br />
says Dr Benjamin Fabian.<br />
CFD: clear insight into flow<br />
phenomena<br />
CFD (= computational fluid dynamics) is a<br />
method for using computers to calculate<br />
flows. this simulates the real geometry in<br />
which fluids flow as a 3-D object on the<br />
computer.<br />
the complex whole is then subdivided<br />
into the many smaller elements that are<br />
required for the calculation. Material<br />
properties and boundary conditions are<br />
determined, and then the calculation<br />
starts: the flow is then developed step<br />
by step throughout the entire geometry,<br />
with the progress of the flow being considered<br />
on a cell-by-cell basis. this allows<br />
even the most complex flow phenomena<br />
to be visualized.<br />
Due to the frequent interaction of flow<br />
and heat phenomena, all of the programs<br />
used by nIs include the entire reaction<br />
process between flow and heat.<br />
Velocity distribution in an exhaust pipe<br />
Temperature distribution in a server rack taking into account<br />
the external cooling and the fan trays
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