Dr Atsushi Tateishi
Atsushi Tateishi is a CFD and Aeromechanics engineer at IHI Corporation. He graduated from the University of Tokyo in 2010 and received his PhD degree from the same university in 2015. After finishing his PhD, he started his academic career as a Project Assistant Professor at the Advanced Aeropropulsion Laboratory at the same university, where he was engaged in collaborative research projects between industry and academia on topics related to aircraft engines. In 2019, he joined IHI Corporation as an engineer, and is now responsible for developing CFD tools for aerodynamic design and aeromechanics evaluation of aircraft engines. He is interested in various aspects of CFD technology for aircraft engines, ranging from simple design tasks to high-fidelity simulations, including aeromechanics, fluid-structure interaction, and pre- and post-processing.
Day 2: Thursday, September 10th | 14:00 – 14:25
Room: Vivaldi
Title: Transitioning CFD and Aeromechanics Simulations toward Future Engine Generations
Speaker: Dr Atsushi Tateishi (IHI Corporation, Japan)
Abstract: In order to meet the requirements for significant performance improvements and stable operation over wider operating ranges in future aircraft engines, engineers need to understand the large design space and even expand it to find better design solutions. The design of turbomachinery in aircraft engines is generally split into multiple steps, such as preliminary and detailed phases, and the latter heavily utilizes Computational Fluid Dynamics (CFD) simulations to evaluate the aerodynamic performance of three-dimensional blades. The aerodynamic and aeroelastic stabilities are evaluated at the same time, and both are affected by geometrical features in real machines. To accelerate design evaluation, as well as to provide sufficient flexibility for handling real geometry, IHI have been developing a new CFD solver based on an unstructured finite volume method from 2021. This presentation introduces key features of the solver and important findings obtained during realistic applications. The following areas and topics are addressed.
1. Aerodynamic simulations
1. 1. Discretization, parallel computation and convergence acceleration
1. 2. Blade-row coupling for multistage turbomachinery
1. 3. Complex geometry
2. Aeroelastic simulations
2. 1. Aerodynamic damping and flutter
2. 2. Forced response
Dr Atsushi Tateishi
IHI Corporation, Japan
