Numerical and Experimental Investigations on Mach 2 and 4 Pseudo-Shock Waves in a Square Duct
-
- SUN Liqun
- Department of Mechanical Systems Engineering, Muroran Institute of Technology
-
- SUGIYAMA Hiromu
- Department of Mechanical Systems Engineering, Muroran Institute of Technology
-
- MIZOBATA Kazuhide
- Department of Mechanical Systems Engineering, Muroran Institute of Technology
-
- MINATO Ryojiro
- Department of Mechanical Systems Engineering, Muroran Institute of Technology
-
- TOJO Akira
- Department of Mechanical Systems Engineering, Muroran Institute of Technology
Search this article
Abstract
The structures and characteristics of λ-shaped and X-shaped pseudo-shocks in a square duct are investigated through numerical simulations and experiments at Mach 2 and Mach 4, respectively. The experiments were carried out in a pressure-vacuum supersonic wind tunnel with a test cross section of 80×80 mm2. Numerical simulations were carried out using the Harten-Yee second-order TVD scheme and the Baldwin-Lomax turbulence model. The Reynolds numbers for the Mach 2 and 4 cases were Re∞=2.53×107 and Re∞=2.36×107, respectively, and the flow confinement was δ∞⁄h=0.35 for both cases. The computational results for the Mach 2 pseudo-shock wave are in good agreement with the experimental results. Based on this agreement, the flow quantities, which are very difficult to obtain experimentally, were analyzed by numerical simulation. Although several differences were found between the computational results and experiments in the case of Mach 4 due to asymmetric characteristics in experiment which could not be reproduced in numerical simulation, the computational results are valuable for understanding this complex asymmetric phenomenon.
Journal
-
- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
-
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 47 (156), 124-130, 2004
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001204080755968
-
- NII Article ID
- 10013467463
-
- NII Book ID
- AA0086707X
-
- ISSN
- 21894205
- 05493811
-
- HANDLE
- 10258/00010358
-
- NDL BIB ID
- 7044473
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed