Direct numerical simulation of square vortex flows (Record no. 429681)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02082nam a22002057a 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 230927b |||||||| |||| 00| 0 eng d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 620.106 GOY |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Goyal, Abhishek |
| 245 ## - TITLE STATEMENT | |
| Title | Direct numerical simulation of square vortex flows |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Bangalore : |
| Name of publisher, distributor, etc | Indian Institute of Science, |
| Date of publication, distribution, etc | 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | xii, 71p.: |
| Other physical details | ill. col. |
| Accompanying material | e-Thesis |
| Size of unit | 10.37 Mb |
| 500 ## - GENERAL NOTE | |
| General note | includes bibliographical references and index |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | M.Tech (Res); 2023; Mechanical Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Atmospheric and oceanic flows are often modeled as two-dimensional due to their large<br/>planar extents (∼ 1000 km) and small vertical extent (∼ 10 km). Most phenomena in<br/>these systems are governed by the theory of two-dimensional turbulence. Rather than<br/>truncating the third dimension, its effect is modeled using additional friction term in<br/>the 2D Navier-Stokes equations. These equations are said to be applied to a class of<br/>flows called quasi-two-dimensional (Q2D) flows, which are essentially three-dimensional<br/>but almost planar flows. The approximation of Q2D-ness is widely applied for shallow<br/>fluid layers in laboratory experiments.<br/>We study Q2D flows generated by electromagnetically driving a shallow electrolyte<br/>layer. The specific form of forcing mimics that of a chessboard, where the laminar<br/>flow is composed of counter rotating square vortices arranged in a chessboard like<br/>array. The forcing function is carefully chosen to mimic experimental measurements<br/>of a laboratory realization, which is not purely sinusoidal as in the well-known Taylor<br/>Green vortex flow. The steadily forced flow leads to a statistically stationary state<br/>which is analyzed over a wide Reynolds number range. We analyze how the dynamics<br/>and flow structures change with increasing Reynolds number. We illustrate methods<br/>to discuss when and how the Q2D model ceases to accurately represent experiments. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Fluid Mechanics |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Turbulence |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | advised by Suri, Balachandra |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://etd.iisc.ac.in/handle/2005/6218 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Thesis |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Uniform Resource Identifier | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | Not For Loan | JRD Tata Memorial Library | JRD Tata Memorial Library | 27/09/2023 | 620.106 GOY | ET00231 | 27/09/2023 | https://etd.iisc.ac.in/handle/2005/6218 | Thesis |
