An investigation was made of the possible effect of the boundary layer on the lack of separation observed between the shock and the current sheath in a magnetically driven shock tube operating under discharge conditions of high voltage and low pressure. Since the calculated and the observed maximum displacement thickness in the pressure range investigated was around 1 mm only, it was concluded that the presence of a viscous layer at the wall cannot be of importance. Instead, the observed lack of separation is most likely due to the leakage of the compressed gas through the current-sheath, and to the diffusive nature of the driving current.
|Place of Publication||Roskilde, Denmark|
|Publisher||Risø National Laboratory|
|Number of pages||12|
|Publication status||Published - 1975|
|Series||Denmark. Forskningscenter Risoe. Risoe-R|
- Risø report 321