Effect of arterial wall viscoelastic properties on wall shear stress distribution

• Project/Area Number: 25870385
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biomedical engineering/Biomaterial science and engineering; Fluid engineering
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: Fukui Tomohiro 京都工芸繊維大学, 機械工学系, 助教 (00451542)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 脈波伝播 / 壁せん断応力 / 粘弾性特性 / バイオメカニクス

Outline of Final Research Achievements

Computational and experimental developments for pulse wave propagation phenomenon are conducted to investigate effects of arterial wall viscoelastic properties on wall shear stress distribution.
To solve the interactions between fluid and structure on a Cartesian grid, virtual flux method and regularized lattice Boltzmann method are applied. The commercial code Radioss was also used to solve the interactions by using ALE method.
Pulse wave propagation phenomenon is reproduced using silicon tubes and evaluated in terms of pulse wave velocity to compare that from the Moens-Korteweg equation.

Research Products

• [Journal Article] Influence of Vortices in the Sinus of Valsalva on Local Wall Shear Stress Distribution (2013)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Journal Title: International Journal of Life Science and Medical Research Volume: 3(3) Issue: 3 Pages: 99-102
  • DOI: 10.5963/lsmr0303002
  • Peer Reviewed
• [Presentation] Fundamental Study on Deep Bed Filtration by Regularized Lattice Boltmann Method (2016)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Organizer: 28th International Conference on Parallel Computational Fluid Dynamics
  • Place of Presentation: Kobe
  • Year and Date: 2016-05-09
  • Int'l Joint Research
• [Presentation] 2-D Numerical Study on the Depth Filtration by Virtual Flux Method (2015)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Organizer: IV International Conference on Particle-Based Methods. Fundammentals and Applications
  • Place of Presentation: Barcelona
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Influence of Geometric Change of the Thoracic Aorta due to Arterial Switch Operation on Wall Shear Stress Distribution (2015)
  • Author(s): Tomohiro Fukui, Hiroaki Asama, Manabu Kimura, Toshiyuki Itoi and Koji Morinishi
  • Organizer: Parallel CFD 2015
  • Place of Presentation: Montreal (Canada)
  • Year and Date: 2015-05-18 – 2015-05-20
• [Presentation] Blood Flow Simulation in the Aorta with Aortic Valves using Regularized Lattice Boltzmann Method with LES Model (2013)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Organizer: Fluid Structure Interaction 2013
  • Place of Presentation: Gran Canaria, Spain
• [Presentation] Blood Flow Simulation in the Aorta passing through the Aortic Orifice by Virtual Flux Method (2013)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Organizer: 3rd South-East European Conference on Computational Mechanics
  • Place of Presentation: Kos Island, Greece
• [Presentation] Blood Flow Simulation in the Aorta related to Initiation and Progression of the Aortic Valve Stenosis (2013)
  • Author(s): Tomohiro Fukui and Koji Morinishi
  • Organizer: The 10th International Conference for Mesoscopic Methods in Engineering and Science
  • Place of Presentation: Oxford, UK