Internship theme 20220606

Internship student: Vidyut Balaji
Duration: June 6, 2022 – August 12, 2022
Supervisor: Yusuke Takahashi
Trainer(s) in Lab.: Mr. Sanjoy Saha

Research Title: Fluid-structure interaction of a Flat-Plate Wing in a High-Enthalpy Flow

Objectives: To investigate fluid-structure interaction and limit cycle oscillation behavior of thin flat wing using computational science approach

Analysis Target: Flat plate wing at transonic/subsonic speed

Learnings expected:

  1. To learn software programs and computer scripts related to fluid-structure interaction (FSI) analysis (C/C++, Python, Shellscript)
  2. To develop research skills and methodology related to FSI analysis
  3. To learn basic theory for fluid dynamics, structural mechanics, and computational engineering.

Tools:

  1. FSI software: SU2, CalculiX and preCICE (C/C++, Fortran)
  2. Preprocess/postprocess software: Pointwise, FreeCAD, Paraview
  3. Linux OS (Ubuntu)
  4. Interactive program for data processing and calculation operation: Python and Shellscript etc
  5. Office tool: Microsoft office (MS Word, Excel, and Powerpoint) and/or Mac office
  6. Cloud server:
  7. Storage server:

Project fSTEP:
Link: https://f3.eng.hokudai.ac.jp/self-evaluation-program-guide.html

Schedule planned:

1. First week (June 6—10, 2022)

  • Definition of objectives of the present project through fSTEP of f3 center: https://f3.eng.hokudai.ac.jp/self-evaluation-program-guide.html
  • Literature review study
  • Accessing to cloud server in Hokkaido University
  • Tutorials of preprocess/postprocess software: Pointwise, FreeCAD, and Paraview

2. Second 2 weeks (June 13—24 2021)

  • Verification and validation of the present FSI analysis model (1)
    • Reference: Attar et al., “Aeroelastic prediction of the limit cycle oscillations of a cropped delta wing”, Journal of Fluids and Structures 22 (2006) 45–58.
  • Generating computational grids for flow field and structural mechanics simulations
  • Setting computation setups for flow field and structural mechanics solvers, and coupler, for example, the boundary conditions initial conditions, and coupling schemes.

3. Third 2 weeks (June 27—July 8, 2022)

  • Verification and validation of the FSI analysis model (2)
  • Running FSI simulation for elastic wing on cloud server
  • Postprocess of simulation results
  • Comparison between the present FSI analysis results and referenced data (Attar’s paper)

4. Fourth 2 weeks (July 11—22, 2022)

  • FSI analysis for flat wing
  • Generating computational grids for flow field and structural mechanics simulations
  • Setting computation setups for flow field and structural mechanics solvers, and coupler, for example, the boundary conditions initial conditions, and coupling schemes.

5. Fifth 2 weeks (July 25—August 5, 2022

  • Running FSI simulation for elastic wing on cloud server
  • Postprocess of simulation results

6. Fourth week (August 8–12, 2021)

  • Conclusion of the internship study
  • Technical report (final report)

References

  1. T.D. Economon, F. Palacios, S.R. Copeland, T.W. Lukaczyk, and J.J. Alonso. “SU2: An open-source suite for multiphysics simulation and design”. Aiaa Jour- nal, 54(3):828–846, 2016.
  2. G. Dhondt and K. Wittig. “Calculix a free software three-dimensional structural finite element program”. www.calculix.de.
  3. H.J. Bungartz, F. Lindner, B. Gatzhammer, M. Mehl, K. Scheufele, A. Shukaev, and B. Uekermann. “preCICE–a fully parallel library for multi-physics surface coupling”. Computers & Fluids, 141:250–258, 2016.
  4. preCICE”. https://github.com/precice.
  5. O.O. Bendiksen. “Review of unsteady transonic aerodynamics: Theory and applications”. Progress in Aerospace Sciences, 47(2):135–167, 2011.
  6. Y. Takahashi, Numerical Simulation of Fluid-Structure Interaction for Thin Flat Delta Wing at Transonic Speed based on Opensource Software, in: 9th edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS 2021). URL https://www.scipedia.com/public/Takahashi_2021a
  7. Thomas Richter, Fluid-structure Interactions: Models, Analysis and Finite Elements (Lecture Notes in Computational Science and Engineering, 118) (if possible)
  8. Attar et al., “Aeroelastic prediction of the limit cycle oscillations of a cropped delta wing”, Journal of Fluids and Structures 22 (2006) 45–58.