Review of "IUTAM Symposium on Integrated Modeling of Fully Coupled Fluid Structure Interactions Using Analysis, Computations and Experiments."

Hydroplaning is a phenomenon which occurs when a layer of water between the tire contact patch and pavement pushes the tire upward. The tire detaches from the pavement, preventing it from providing sufficient forces and moments for the vehicle to respond to driver’s control inputs such as breaking, acceleration and steering. This work is mainly focused on the tire and its interaction with the pavement to address hydroplaning. Fluid Structure Interactions (FSI) between the tire-water-road surfaces are investigated through two approaches. In the first approach, the coupled Eulerian-Lagrangian (CEL) formulation was used. The drawback associated with the CEL method is the laminar assumption and that the behavior of the fluid at length scales smaller than the smallest element size is not captured. As a result, in the second approach, a new Computational Fluid Dynamics (CFD) Fluid Structure Interaction (FSI) model utilizing the shear-stress transport k-ω model and the two-phase flow of water and air, was developed that improves the predictions with real hydroplaning scenarios. Review of the public literature shows that although FEM and CFD computational platforms have been applied together to study tire hydroplaning, developing the tire-surrounding fluid flow CFD model using Star-CCM+ has not been done. This approach, which was developed during this research, is explained in details and the results of hydroplaning speed and cornering force from the FSI simulations are presented and validated using the data from literature.

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Large Amplitude Limit Cycle Oscillations of Fully Coupled Fluid-Structure Interactions

2018 Fluid Dynamics Conference ◽

10.2514/6.2018-3392 ◽

2018 ◽

Cited By ~ 2

Author(s):

Jurgen Seidel ◽

Timothy M. Siefers ◽

Casey P. Fagley ◽

Thomas E. McLaughlin

Keyword(s):

Limit Cycle ◽

Large Amplitude ◽

Limit Cycle Oscillations ◽

Fluid Structure Interactions ◽

Fluid Structure ◽

Fully Coupled

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Validation of Computational Fluid Structure Interaction Models for Shape Optimization Under Blast Impact

Volume 1: 36th Design Automation Conference, Parts A and B ◽

10.1115/detc2010-28110 ◽

2010 ◽

Author(s):

Huade Tan ◽

John Goetz ◽

Andre´s Tovar ◽

John E. Renaud

Keyword(s):

Optimization Problems ◽

Fluid Structure Interaction ◽

Fluid Structure Interactions ◽

Fluid Structure ◽

Structure Interaction ◽

Blast Energy ◽

Interaction Simulation ◽

Fully Coupled ◽

Structural Optimization Problem ◽

Interaction Problem

A first order structural optimization problem is examined to evaluate the effects of structural geometry on blast energy transfer in a fully coupled fluid structure interaction problem. The fidelity of the fluid structure interaction simulation is shown to yield significant insights into the blast mitigation problem not captured in similar empirically based blast models. An emphasis is placed on the accuracy of simulating such fluid structure interactions and its implications on designing continuum level structures. Higher order design methodologies and algorithms are discussed for the application of such fully coupled simulations on vehicle level optimization problems.

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