The wall-jet problem described in a previous paper in which the effects of suction through the wall and the wall moving were allowed so as to still satisfy the momentum condition for the wall jet is considered further. It is shown that, as well as the upper branch of solutions which were obtained pr
A note on the wall-jet problem
โ Scribed by J. H. Merkin; D. J. Needham
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 207 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0022-0833
No coin nor oath required. For personal study only.
โฆ Synopsis
The wall-jet problem is considered with, in turn, the effects of blowing and suction through the wall and the wall moving. In both cases it is assumed that the effect has the appropriate power-law variation so as to maintain the similarity form. It is shown that the resulting ordinary differential equation has no acceptable solution satisfying the required boundary conditions. The wall jet problem in which the original momentum condition is retained, but allowing for both transpiration velocity and the wall velocity is derived and it is shown that this implies that a solution is possible only for suction. A solution to this problem is then obtained for the appropriate power-law variations to keep the similarity form.
๐ SIMILAR VOLUMES
The paper contains the results of extensive single-point hot-wire and resistance-thermometer measurements in a wall jet on a heated concave wall with an external free stream. It is found that the turbulence in the inner (wall) and outer layers is sensitive to the distortion produced by the curved wa