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10. Internationales Fluidtechnisches
Kolloquium

8. - 10. März | 2016
in Dresden

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Kurzfassung

13:45   ics       Großer Saal

Simulation of the cavitating flow in a model oil hydraulic spool valve using different model approaches

First author:
Michel Schümichen, TU Dresden, Institute of Fluid Mechanics, Germany

Co-author(s):
Frank Rüdiger, TU Dresden, Institute of Fluid Mechanics
Jürgen Weber, TU Dresden, IFD
Jochen Fröhlich, TU Dresden, Institute of Fluid Mechanics

Abstract:
The contribution compares results of Large Eddy Simulations of the cavitating flow in a
model oil hydraulic spool valve using an Euler-Euler and a one-way coupled Euler-
Lagrange model. The impact of the choice of the empirical constants in the Kunz
cavitation model is demonstrated. Provided these are chosen appropriately the
approach can yield reasonable agreement with the corresponding experiment. The
one-way Euler-Lagrange model yields less agreement. It is demonstrated that this is
due to the lack of realistic volumetric coupling, rarely accounted for in this type of
method. First results of such an algorithm are presented featuring substantially more
realism.