Data · dataset · 2021
Particle Image Velocimetry (PIV) measurement data for backward facing step flows with and without periodic perturbations
Listed in Teesside University Research Data Repository
Flow fields downstream of a backward-facing step with a Reynolds number (UH/\nu) of 9630 were measured using a 2D2C PIV system.
Description
Freestream velocity is U=5.7m/s, H=0.025m. Flow was also perturbed using a synthetic jet actuator deployed at the separation point with a range of perturbation frequencies (St= 0.04 to 0.39) and amplitudes (u_A/U= 0.3 to 0.9) .
A total of 2000 image pairs were acquired at a rate of 50 Hz for the unperturbed flow, 47 Hz for the flow perturbed at 70 Hz and 49 Hz for other perturbed flow. In this data set, there are a total of 37 data files saved in Matlab2013 MAT format. Files with a name 'f(a)c(b)Vec1.mat' have a size of 3280(spatial locations)*2000(number of snapshots)*2(two velocity components).
Read the rest (2 more)
Unit is m/s. Here in the file name, a=[0:1:9], 0:unperturbed flow, 1:perturbed at 10Hz, 2:20Hz, 3:30Hz, 4:40Hz, 5:50Hz, 6:60Hz, 7:70Hz, 7:70Hz, 8:80Hz, 9:90Hz; corresponding to St=fH/U=[0 0.0439 0.0877 0.1316 0.1754 0.2193 0.2632 0.3070 0.3509 0.3947]; b=[1:1:4], corresponding to perturbation amplitude of u_A/U=[0.3 0.5 0.7 0.9]. The file 'X.mat' and 'Y.mat' is the stream-wise and vertical position respectively.
Both files have a size of 3280 and normalized using step height, H. More details about the experiment were described in Li, Z.Y., Guo, S., Bai, H.L. & Gao, N. 2019 Combined flow and heat transfer measurements of backward-facing step flows under periodic perturbation. Int J Heat Mass Trans 130, 240–251, 10.1016/j.ijheatmasstransfer.2018.10.077. I am available at gaonan@hit.edu.cn, or a permanent email gaonum@126.com
Links
Where it is published
- DOI doi.org/10.17632/r7rrf8wn99.3 ↗
DOI / persistent id · from researchdata tees ac uk
Catalogue records · 1
- OAI-PMH record data.mendeley.com/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Adata… ↗
metadata API · from researchdata tees ac uk
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Physics · Social Science
- Inferred from text
- Fluid mechanics and thermal engineering 75% · Image 75%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Teesside University Research Data Repository | oai:data.mendeley.com/r7rrf8wn99.3 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].anzsrc:group:4012 | enrichment · researchdata tees ac uk | taxonomy-embedding@1.0.0 | title+keywords+description (75%) |
| concepts[field].local:field:earth-environmental | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:humanities | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:physics | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · researchdata tees ac uk | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/description |
| license | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/rights |
| publication_date | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| title | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/title |