Numerical Investigation of Vortex Induced Vibration of Rotating Circular Cylinder in Stream Wise Direction Subject to Oscillatory Flow / (Record no. 607302)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03338nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Kashif, Muhammad |
| 245 ## - TITLE STATEMENT | |
| Title | Numerical Investigation of Vortex Induced Vibration of Rotating Circular Cylinder in Stream Wise Direction Subject to Oscillatory Flow / |
| Statement of responsibility, etc. | Muhammad Kashif |
| 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 | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 71p. ; |
| Other physical details | Soft Copy |
| Dimensions | 30cm. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Vortex-induced vibration (VIV) is a phenomenon that occurs when cylindrical structures are<br/>subjected to fluid flow. This phenomenon has significant implications in various engineering<br/>fields. One notable example is its impact on the offshore riser tubes dynamics used for extracting<br/>seabed oil from deep water conditions, where depths of water can reach at 3000 m. Understanding<br/>VIV is crucial for the design of such riser systems. Moreover, VIV plays a vital role in other<br/>engineering applications at offshore, including mooring lines for offshore floating wind turbines,<br/>underwater pipelines, and flexible slender piping’s.<br/>When underwater structures exposed to marine currents are susceptible to VIV arises by the<br/>oscillatory forces generated due to vortex shedding flow dynamics. This study specifically focuses<br/>on investigating the VIV of rotating cylinder in direction stream wise subjected to oscillatory flows.<br/>In that study the flow-induced vibration around the rotating cylinder is examined using numerical<br/>simulations of two-dimensional. Fluid flow around cylinder is analysed using “Arbitrary<br/>Langrangian-Eulerian (ALE) scheme along with Petrov-Galerkin (P-G) Finite Element” method<br/>in which fluid structure interactions were deeply examined, along with flow behaviour, ratio of<br/>amplitudes and vortex shedding patterns were analysed. The proposed investigation is carried out<br/>at 150 Reynolds number with 2 mass ratio and zero damping ratio. Oscillatory flow condition is<br/>modelled in numerical simulation using two Kuelegan carpenter numbers, KC=05 and KC=10,<br/>with broad range of reduced velocities from 1-20 selected. This research study examines the<br/>rotation effects on the flow around on elastically mounting rotating cylinder when flow direction<br/>is stream-wise. It is observed during the course of cylinder, along with the KC number and Vr,<br/>significantly affects the amplitude of vibration. Cylinder rotations rate is defined by α = ωD/2U<br/>where ω is angular velocity of the cylinder. It is kept in a broad range of α=<br/>(0.2,0.3,0.4,0.5,0.6,0.7,0.9 & 1) to analyse the cylinder behaviour in oscillatory flow. It was found<br/>that the amplitude response of cylinder displacement is directly linked with cylinders’ rotation<br/>rate. The peak amplitude response for this present study would occur at the lock-in regime where<br/>cylinder vibration approaches to the oscillatory flow frequency. Furthermore, this research<br/>includes a comprehensive examination of flow structure to enhance the understanding of the<br/>rotational cylinder's underlying physics. The research concluded that when rotation rate increases<br/>it would yield rise in amplitude response of cylinder displacement and lock-in regime. |
| 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/123456789/36338">http://10.250.8.41:8080/xmlui/handle/123456789/36338</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 | 12/11/2023 | 621 | SMME-TH-894 | Thesis |