Weak shock diffraction
Duration: 30 mins 47 secs
Share this media item:
Embed this media item:
Embed this media item:
About this item
Description: |
Hunter, JK (University of California, Davis)
Tuesday 24 June 2014, 10:20-10:50 |
---|
Created: | 2014-07-11 11:42 |
---|---|
Collection: | Free Boundary Problems and Related Topics |
Publisher: | Isaac Newton Institute |
Copyright: | Hunter, JK |
Language: | eng (English) |
Abstract: | Co-author: Allen Tesdall (CUNY)
We study the diffraction of a weak, self-similar shock in two space dimensions near a point where its shock strength approaches zero and the shock turns continuously into an expansion wavefront. For example, this happened when a weak shock hits a semi-infinite screen. The local asymptotic solution satisfies the unsteady transonic small disturbance equation. We also consider a related half-space problem where a shock whose strength approaches zero reflects off a ``soft'' boundary. Numerical solutions show a complex reflection pattern similar to one that occurs in the Guderley Mach reflection of weak shocks. |
---|
Available Formats
Format | Quality | Bitrate | Size | |||
---|---|---|---|---|---|---|
MPEG-4 Video | 640x360 | 1.91 Mbits/sec | 441.09 MB | View | Download | |
WebM | 640x360 | 873.64 kbits/sec | 197.08 MB | View | Download | |
iPod Video | 480x270 | 489.53 kbits/sec | 110.37 MB | View | Download | |
MP3 | 44100 Hz | 249.74 kbits/sec | 56.37 MB | Listen | Download | |
Auto * | (Allows browser to choose a format it supports) |