Numerical simulation of cascade flows using block-structured cartesian mesh

Masaki Koike, Takaya Kojima, Daisuke Sasaki, Takashi Misaka, Koji Shimoyama, Shigeru Obayashi, Karin Hirakawa, Naoki Tani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mesh generation is one of the critical problems in numerical simulation of cascade flow, particularly cooled turbine blade. To overcome this problem, Cartesian-mesh CFD solver is focused these days. In this study, block-structured Cartesian-mesh solver, Building-Cube Method (BCM), is applied to cascade flow of T106 low pressure turbine cascade. Ghost-cell approach is employed to represent the curved surface of T106 blade. The result is compared with the result of wall boundary condition with staircase representation. As a result, Ghost-cell approach can mitigate the pressure oscillations and obtain more smooth results. The computational results are also compared with experimental results for the validation, and the similar surface pressure coefficients are obtained. However, the difference is observed at the location of laminar-turbulent transition due to the lack of mesh resolution.

Original languageEnglish
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
DOIs
Publication statusPublished - 2017 Jan 1
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: 2017 Jan 92017 Jan 13

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Other

Other55th AIAA Aerospace Sciences Meeting
CountryUnited States
CityGrapevine
Period17/1/917/1/13

ASJC Scopus subject areas

  • Aerospace Engineering

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