د.عاصم حميد يوسف - د.وفاء عبد سعود- علي محمد رضا مهدي
المؤلفون بالإنجليزي
Ali Mohammedridha Mahdi- Dr. Assim Hameed Yousif- Dr. Wafa Abd Soud
الملخص الانجليزي
Fluid-structure interaction method is performed to predict the dynamic characteristics of
axial fan system. A fluid-structure interface physical environment method (monolithic method) is
used to couple the fluid flow solver with the structural solver. The integration of the threedimensional
Navier-Stokes equations is performed in the time Doman, simultaneously to the
integration of the three dimensional structural model. The aerodynamic loads are transfer from the
flow to structure and the coupling step is repeated within each time step, until the flow solution and
the structural solution have converged to yield a coupled solution of the aeroelastic set of equations.
Finite element method is applied to solve numerically the Navier-Stockes equations coupled with
the structural equations The first ten eigenvalue (natural frequency), the first ten eigenvector (mode
shape) and effective stress for each part of a rotor system and complete system assembly are
predicted.
The validity of the predicted dynamic characteristics of duct fan system was confirmed
experimentally by investigating geometrically similar fan system test rig. Good agreement of
dynamic characteristics is observed between experimental and numerical results.
أ.م.د.وفاء عبد سعود | Asst.Prof. dr.Wafa Abd Soud | 2888