Development of hub vortex estimation method by CFD computation around a propeller with dynamic overset approach

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420834
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: National Institute of Maritime, Port and Aviation Technology
• Principal Investigator: Kobayashi Hiroshi 国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (20361503)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 動的重合格子 / CFD / プロペラ / 構造格子 / 非定常計算

Outline of Final Research Achievements

Overset grid approach is one of ways to deal with complex geometries, simplifying grid generation and it provides flexibility to rearrange geometries. Overset grid approach is also useful for a moving body problem since it can cope with change of arrangement of computational grids by just recomputing Domain Connectivity Information(DCI) without regenerating grids.
Dynamic overset grid approach was introduced to compute unsteady flow filed such as a flow around a rotating propeller by recomputing DCI at each time steps. It is confirmed that the system has capability to simulate unsteady flow field around a rotating propeller by dynamic overset assembling approach practically.

Free Research Field

船舶流体力学