Aerospace Research and Development Directorate

Chōfugaoka, Japan

Aerospace Research and Development Directorate

Chōfugaoka, Japan

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Okamura N.,Tokyo University of Science | Honami S.,Japan Aerospace Exploration Agency | Taguchi H.,Supersonic Transport Team | Ueno A.,Supersonic Transport Team | Hirotani T.,Aerospace Research and Development Directorate
50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition | Year: 2012

Liquid hydrogen fueled hypersonic transportation, which can fly across the Pacific Ocean in 2 hours, has been researched in JAXA. The objective of this study is to evaluate low speed aerodynamic performance. Strake shapes are added to the baseline shape, and the longitudinal aerodynamic characteristics are discussed. In this study, results of the baseline shape and delta strake shape from the CFD analysis are compared with those from the wind tunnel tests. In addition, two kinds of the modified strake shapes are proposed. The CFD analysis is conducted to evaluate those shapes. In the convex strake shape, strong vortices are observed. As a consequence, it was confirmed that the convex strake shape produces the largest lift of all shapes. Copyright © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

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