Numerical investigation of supersonic transition for a circular cone at mach 3.5

Andreas C. Laible, Christian S J Mayer, Hermann F Fasel

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

9 Scopus citations

Abstract

The Direct Numerical Simulation (DNS) of the transition process in a supersonic boundary layer from the laminar to the turbulent state significantly challenges existing numerical codes. High-order accurate methods are commonly used to improve the accuracy of simulations and thus reduce the number of required grid points. In this paper the development of a high-order code which is tailored towards stability and nonlinear transition simulations over a circular cone is discussed. A thoroughly conducted validation is presented. In particular, small amplitude disturbances are introduced to study the linear wave amplification (eigenbehavior). The results are compared to Linear Stability Theory (LST). Moreover, a three-dimensional stability diagram - in the downstream-frequency-azimuthal mode domain (Rx - F - k) - is extracted from these calculations and analyzed. Finally, the possible occurrence of oblique breakdown is highlighted by performing simulations with continuously forced finite{amplitude disturbances.

Original languageEnglish (US)
Title of host publication38th AIAA Fluid Dynamics Conference and Exhibit
Publication statusPublished - 2008
Event38th AIAA Fluid Dynamics Conference and Exhibit - Seattle, WA, United States
Duration: Jun 23 2008Jun 26 2008

Other

Other38th AIAA Fluid Dynamics Conference and Exhibit
CountryUnited States
CitySeattle, WA
Period6/23/086/26/08

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Laible, A. C., Mayer, C. S. J., & Fasel, H. F. (2008). Numerical investigation of supersonic transition for a circular cone at mach 3.5. In 38th AIAA Fluid Dynamics Conference and Exhibit [2008-4397]