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Steady state risetimes of shock waves in the atmosphere
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Yao, Lixin Raspet, Richard Bass, Henry Wu, Wenliang |
| Copyright Year | 1992 |
| Description | A square wave shape is used in the Pestorius algorithm to calculate the risetime of a step shock in the atmosphere. These results agree closely with steady shock calculations. The healing distance of perturbed shocks due to finite wave effects is then investigated for quasi-steady shocks. Perturbed 100 Pa shocks require on the order of 1.0 km travel distance to return to within 10 percent of their steady shock risetime. For 30 Pa shocks, the minimum recovery distance increases to 3.0 km. It is unlikely that finite wave effects can remove the longer risetimes and irregular features introduced into the sonic boom by turbulent scattering in the planetary boundary layer. |
| File Size | 282024 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920024638 |
| Archival Resource Key | ark:/13960/t2f818g3j |
| Language | English |
| Publisher Date | 1992-10-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Algorithms Atmospheric Turbulence Shock Wave Propagation Acoustic Scattering Sonic Booms Square Waves Steady State Planetary Boundary Layer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
