Experimental Investigation of Energy Harvesting in the Wake of Circular Cylinder using Cantilever Pivoted Piezoelectric (Eel) / (Record no. 608924)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02954nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mahmood, Rizwan |
| 245 ## - TITLE STATEMENT | |
| Title | Experimental Investigation of Energy Harvesting in the Wake of Circular Cylinder using Cantilever Pivoted Piezoelectric (Eel) / |
| Statement of responsibility, etc. | Rizwan Mahmood |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Islamabad : |
| Name of producer, publisher, distributor, manufacturer | SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice | 2022. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 80p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | Set of experiments are designed and executed in a water tunnel to study the impacts of<br/>pivoted mounting mechanism on piezoelectric flag and to observe improvement in the<br/>parameters associated with energy harvesting. For this purpose, we performed experiments<br/>using circular cylinder and two identical cylinders in tandem arrangement which are placed in<br/>a uniform fluid flow. Modes depicting parameters of energy harvesting are extracted by motion<br/>capturing of tail evolution of the flexible flapping flag over the period of 120 seconds by postprocessing in MATLAB. Different flapping modes, such as those with weak and ideal coupling<br/>to the wake flow, were demonstrated by experimental data. We noticed the two mechanisms<br/>that help push the flag in either direction. The first process involves the impingement of induced<br/>flow caused by passing vortices on one side of the flag, while the second involves the presence<br/>of the low-pressure core regions of the vortices on the opposite sides of the flag which relates<br/>to the finding of Akaydin H. et al. (2010). The sequence of these two effects combined with<br/>the free pivoted head of the flag generated maximum values for dominant flapping frequency<br/>and normalized amplitude (A/L). And also experiments showed that the streamwise gap (Gx)<br/>and flow speed (U m/s) have a significant impact on the amplitude and flapping frequency. The<br/>results indicate that with the use of pivot mounting, the flapping amplitude (A/L) is increase<br/>by a margin of 51.18% while dominant flapping frequency increases for about 22.79% as<br/>compared to U. Latif et al. (2021) results for stationary head mounted flag behind circular<br/>cylinder. For further improvement of parameters, we placed an identical cylinder at upstream<br/>of current cylinder. This tandem arrangement proved to have adverse effects on the vortex<br/>shedding and hence less efficient results obtained due to less net energy & poor coupling of<br/>flag with the wake flow. Particle Image Velocimetry (PIV) of cylinder wake also endorses the<br/>results of J.Wu et al. as wake dynamics and vortex shedding under for gd/D=1.0, 1.5 and 2.0,<br/>are in good agreement with the flag behavior. The present study contributes effectively to<br/>harvesting energy from impinging vortices by tuning the streamwise gap, flow velocity, and<br/>mounting mechanism for the flexible flag (EEL). |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Mechanical Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor : Dr. Adnan Munir |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/30606">http://10.250.8.41:8080/xmlui/handle/123456789/30606</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 04/23/2024 | 621 | SMME-TH-766 | Thesis |