Fluid Structure Interaction over Probe

Isometric view of the steel probe inside the air flow enclosure.

Background

This is an assignment for my ME-441 Computer Simulation and Analysis class. In the Computer Simulation and Analysis class ANSYS Workbench and Discovery AIM were used extensively to simulate. Instructions were provided, and sometimes the models, either from Creo Parametric or SolidWorks, were provided as well. Some assignments however need the objects to be modelled from scratch or modified before hand.

The assignment

In this assignment, the interaction and affects of a high speed air flow over a steel probe must be observed using ANSYS AIM Fluid-Structure Interaction. When meshing, a boundary is applied over the cylindrical face of the enclosure while the probe's body is hidden. When meshing for the probe, the global sizing is set to curvature. For the conditions, the inlet is applied on the face that faces the probe. The inlet is set to have a velocity of 200 m/s. The outlet is applied on the opposite end with a gauge pressure of 0 Pa. The wall boundary is applied to the cylindrical face. For the structural boundary, a fixed support is applied to the flat face of the top of the probe. A force transfer is also applied to the entirety of the probe, except for where the fixed support is applied.

Results

For the fluid flow analysis, the results includes a streamline over the probe, velocity vector over the probe, sum of mass flow rate at the inlet, and velocity and pressure contour over the probe in the mid-plane of the enclosure. For the structural analysis, the results includes the von-Mises stress and displacement magnitude of the probe.

Boundary conditions for the analysis. The image on the left deals with the fluid conditions. The image on the right deals with the structural conditions.

Streamlines over the probe.

Velocity vector over the probe.

Mass flow rate from the inlet.

Velocity contour on a vertical mid-plane over the probe.

Pressure contour on a vertical mid-plane over the probe.

Von-Mises stress on the probe.

Displacement magnitude on the probe.

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