ARC Discovery Grant DP170100275

Dynamics and Control of Fluid-Structure-Free Surface Interactions

Chief Investigators: Kerry Hourigan, Joe J. Monaghan
Partner Investigator: Thomas Leweke

Many natural phenomena and important industrial and sporting processes involve the interaction of solid bodies and
free surfaces - floating and submerged vessels, off-shore marine platforms, wave or current energy harvesting, aquatic sports
such as swimming and skiing, mixing vessels, etc. For some of these, the performance often depends on optimising factors such
as lift and drag (e.g., swimming), while for others, additionally, vibrations can either be damaging (e.g., risers) or
required (e.g., ocean current energy harvester); for example, downtime due to such damage on an offshore oil/gas rig can cost
millions of dollars a day. The team undertakes significant transfer of their fundamental research, such as in this proposal,
to a range of bluff body and vibration problems in the marine, sports, automotive and rail industries, leading to innovative
designs and strategies to increase competitiveness and reduce risk for Australian Industry.

This proposal will address the following our major fundamental questions in fluid-structure interactions at free surfaces in a flow:

1. At what fraction of piercing or immersion does a body undergo maximum flow-induced vibration?

2. What are the relative effects of vortex shedding and wave generation on flow-induced vibration?

3. Does controlling body rotary oscillation influence the amplitude of vibration?

4. free-surface layer separation be modified to control flow-induced vibration?
 
Research Outputs:

2021

• Thompson, M.C., Leweke, T. & Hourigan, K.,
  Bluff bodies and wake-wall interactions,
  Annual Review of Fluid Mechanics, 53,  347-376, 2021. DOI:10.1146/annurev-fluid-072220-123637
  

• Terrington, S.J., Hourigan, K., Thompson, M.C.,
  The generation and diffusion of vorticity in three-dimensional flows: Lyman's flux,
  Journal of Fluid Mechanics, 2021, 915, A106. DOI: 10.1017/jfm.2021.179
  

2020

• Bhat, S., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Effects of flapping motion profiles on insect-wing aerodynamics,
  Journal of Fluid Mechanics, 884, A8, 2020. DOI: 10.1017/jfm.2019.929 
  
  
• Houdroge, F.Y., Leweke, T., Hourigan, K. & Thompson, M.C.,
  

          Wake dynamics and flow-induced vibration of a freely rolling cylinder,
          Journal of Fluid Mechanics, 903, A48, 2020. DOI: 10.1017/jfm.2020.631 

• Konstantinidis, E. Zhao, J., Leontini, J., Lo Jacono, D. & Sheridan, J.,
  Phase dynamics of effective drag and lift components in vortex-induced vibration at low mass–damping,
  Journal of Fluids and Structures, 96, 103028, DOI: 10.1016/j.jfluidstructs.2020.103028
  

• Rajamuni, M.M., Thompson, M.C. & Hourigan, K.,
  Efficient FSI solvers for multiple-degrees-of-freedom flow-induced vibration of a rigid body,
  Computers and Fluids, 196, 104340, 2020. DOI: 10.1016/j.compfluid.2019.104340
  
  
• Rajamuni, M.M., Thompson, M.C. & Hourigan, K.,
  Vortex dynamics and vibration modes of a tethered sphere,
  Journal of Fluid Mechanics, 885, A10, 2020. DOI: 10.1017/jfm.2019.928
  

• Terrington, S.J., Thompson, M.C. & Hourigan, K.,

           The generation and conservation of vorticity: Deforming interfaces and boundaries in two-dimensional flows,
           Journal of Fluid Mechanics, 890, A5, 2020. DOI: https://doi.org/10.1017/jfm.2020.128
           
2019

• Bhat, S., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Aspect ratio studies on insect wings,
  Physics of Fluids, 3168,  121301, 2019. DOI: 10.1063/1.5129191
  

• Rajamuni, M.M., Thompson, M.C. & Hourigan, K.,
  Vortex-induced vibration of elastically-mounted spheres: A comparison of the response of three degrees of freedom and one degree of freedom systems,
  Journal of Fluids and Structures, 89, 142-155, 2019.   DOI: 10.1016/j.jfluidstructs.2019.02.005
  

• Sareen, A., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Large amplitude cross-stream sphere vibration generated by applied rotational oscillation,
  Journal of Fluids and Structures, 89, 156-165, 2019.    DOI: 10.1016/j.jfluidstructs.2019.03.025
  
  
• Zhao, J., Hourigan, K. & Thompson, M.C.,
  Dynamic response of elliptical cylinders undergoing transverse flow-induced vibration,
  Journal of Fluids and Structures, 23, 123-131, 2019. DOI: 10.1016/j.jfluidstructs.2019.01.011
  

• Zhao, J., Hourigan, K. & Thompson, M.C.,
  An experimental investigation of flow-induced vibration of high-side-ratio rectangular cylinders,
  Journal of Fluids and Structures, 91, 102580, 2019. DOI: 10.1016/j.jfluidstructs.2019.01.021 
  
  
• Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Flow-induced vibration of a cube oriented at different incidence angles.
  Journal of Fluids and Structures, 91, 102701, 2019. DOI: 10.1016/j.jfluidstructs.2019.102701
  

2018

• Bhat, S., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  The leading-edge vortex on a rotating wing changes markedly beyond a certain central body size,
  Royal Society Open Science, 5(7), 172197, 2018.
  
  
• Massai, T., Zhao, J., Lo Jacono, D., Bartoli, G. & Sheridan, J.,
  The effect of angle of attack on flow-induced vibration of low-side-ratio rectangular cylinders,
  Journal of Fluids and Structures, 82, 375-393, DOI: 10.1016/j.jfluidstructs.2018.07.011

• Rajamuni, M.M., Thompson, M.C. & Hourigan, K.,
  Vortex-induced vibration of a transversely rotating sphere,
  Journal of Fluid Mechanics, 847, 786-820, 2018.
  

• Rajamuni, M.M., Thompson, M.C. & Hourigan, K.,
  Transverse flow-induced vibrations of a sphere,
  Journal of Fluid Mechanics, 837, 931-966, 2018.   
  
  
• Sareen, A., Zhao, J., Lo Jacono, D., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Vortex-induced vibration of a rotating sphere,
  Journal of Fluid Mechanics, 837, 258-292, 2018.
  

• Sareen, A., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Vortex-induced vibrations of a sphere close to a free surface,
  Journal of Fluid Mechanics, 846, 1023-58, 2018.  
  
  
• Sareen, A., Zhao, J., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  The effect of imposed rotary oscillation on the flow-induced vibration of a sphere,
  Journal of Fluid Mechanics, 855, 703-735, 2018.
  

• Zhao, J., Hourigan, K. & Thompson, M.C.,
  Flow-induced vibration of D-section cylinders: An afterbody is not essential for vortex-induced vibration,
  Journal of Fluid Mechanics, 851, 317-343, 2018.
  

• Zhao, J., Lo Jacono, D., Sheridan, J., Hourigan, K. & Thompson, M.C.,
  Experimental investigation of in-line flow-induced vibration of a rotating circular cylinder,
  Journal of Fluid Mechanics, 847, 664-699, 2018.