Velocity measurements were made in grids to reveal the whole cross section of the tip leakage vortex flow and blade wakes downstream of the cascade. Each set of cross sectional measurements is organized into a ASCII single file (extension .msa). Filenames are given in the table below for the different tip gaps, endwall conditions, blade trips and streamwise stations studied. Flow conditions are given in the parent publications. Tip gap and trip strip width are given in inches, streamwise position is given in terms of axial distance downstream from the leading edge plane X normalized on axial chord ca equal to 5.46 inches. Total blade chord c was 10 inches. Since all measurements were made downstream of the trailing edge plane, all normalized axial stations are greater than 1. Measurements were made either with or without endwall motion. When endwall motion was used, the speed of the endwall was set to the pitchwise component of the inflow velocity, see the above publications.
| Case Number | Filename (ASCII) | Tip gap inches | Cascade blade trip width (inches) | Moving endwall | Streamwise station, X/ca |
| 1 | 1.msa | 0.165 | 0.25 | no | 2.831 |
| 2 | 2.msa | 0.165 | 0.25 | no | 3.77 |
| 3 | 3.msa | 0.165 | 0.5 | no | 2.831 |
| 4 | 4.msa | 0.33 | 0.25 | no | 2.831 |
| 5 | 5.msa | 0.165 | 0.25 | no | 2.026 |
| 6 | 6.msa | 0.085 | 0.25 | no | 2.831 |
| 7 | 7.msa | 0.165 | 0.25 | no | 4.64 |
| 8 | 8.msa | 0.165 | 0.25 | no | 1.366 |
| 9 | 9.msa | 0.165 | 0.25 | no | 2.74 |
| 10 | 10.msa | 0.165 | 0.25 | yes | 2.74 |
| 11 | 11.msa | 0.165 | 0.25 | no | 1.51 |
| 12 | 12.msa | 0.165 | 0.25 | yes | 1.51 |
| 13 | 13.msa | 0.165 | 0.25 | no | 3.75 |
| 14 | 14.msa | 0.165 | 0.25 | yes | 3.75 |
| 15 | 15.msa | 0.33 | 0.25 | no | 2.74 |
| 16 | 16.msa | 0.33 | 0.25 | yes | 2.74 |
| 17 | 17.msa | 0.085 | 0.25 | no | 2.74 |
| 18 | 18.msa | 0.085 | 0.25 | yes | 2.74 |
The files referred to are ASCII data files each with 25 columns. The first three columns of the files give the coordinate locations in terms of the axial X, spanwise Y, and pitchwise Z locations measured from an origin on the endwall midway between the blade leading edges that form the entrance to the center passage of the cascade. The second 3 columns give flow conditions. The remaining columns give the measured mean velocity and turbulence quantities normalized on the inlet velocity of the cascade. Note that the velocity components U, V and W used here are aligned with the flow direction in the potential core downstream of the cascade. Coordinate directions implied by the velocity components are related to the coordinates (X,Y,Z) used to define positions by a 52.6 degree rotation about the Y axis. For more details see the parent publication. The following table lists the contents of each column.
| Column number | Variable |
|---|---|
| 1,2,3 | X/ca, Y/ca, Z/ca, |
| 4 | Free-stream velocity (m/s) U¥ |
| 5 | Reynolds number based on total blade chord Rec |
| 6 | Flow temperature (deg. F) |
| 7-9 | Velocity components U, V, W respectively, normalized on free stream velocity U¥ |
| 10-15 | Turbulence stresses u2, v2, w2, uv, vw, uw respectively, normalized using free-stream velocity U¥2 |
| 16-25 | Triple products u3, v3, w3, uv2, u2v, w2v, v2w, uw2, u2w, uvw respectively, normalized on free-stream velocity U¥3 |
Uncertainties in the measurements are given in table 1 of Muthanna and Devenport (2004).
Please direct any questions or comments concerning the data or other aspects of this work to William Devenport at devenport@aoe.vt.edu.
Last Updated: 11/1/2004