Title |
Numerical observation of secondary Mach stem in weak acoustic shock reflection
|
---|---|
Published in |
Journal of the Acoustical Society of America, August 2018
|
DOI | 10.1121/1.5050667 |
Pubmed ID | |
Authors |
Bharat B. Tripathi, Sambandam Baskar, François Coulouvrat, Régis Marchiano |
Abstract |
Recently Ram, Geva, and Sadot [J. Fluid Mech. 768, 219-235 (2015)] showed, experimentally, the formation of a secondary Mach stem generated from the reflection of the primary Mach stem in the aerodynamic regime. Such a phenomenon has never been observed, either experimentally or numerically, in the framework of weak acoustic shocks. In this work, the formation of a secondary Mach stem is observed from the reflection of acoustic shock waves on a convex-concave boundary giving rise to a complex five-shock pattern. This study is fully numerical and is based on the numerical solution of a nonlinear acoustic system of equations using a recently developed discontinuous Galerkin solver. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 5 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Professor | 1 | 20% |
Student > Ph. D. Student | 1 | 20% |
Professor > Associate Professor | 1 | 20% |
Student > Doctoral Student | 1 | 20% |
Unknown | 1 | 20% |
Readers by discipline | Count | As % |
---|---|---|
Mathematics | 2 | 40% |
Physics and Astronomy | 1 | 20% |
Engineering | 1 | 20% |
Unknown | 1 | 20% |