Numerical Analysis of Aerodynamic Characteristics of Multi-Pod Hyperloop System / (Record no. 609138)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 03392nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mirza, M Omer |
| 245 ## - TITLE STATEMENT | |
| Title | Numerical Analysis of Aerodynamic Characteristics of Multi-Pod Hyperloop System / |
| Statement of responsibility, etc. | M Omer Mirza |
| 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 | 103p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | The Hyperloop system is a new and innovative mode of transportation, in which high-speed<br/>pods move through near-vacuum tubes. In this study, a multi-pod Hyperloop system was<br/>analyzed using numerical simulations at different values of distance between the pods (i.e., 2L to<br/>4L). The numerical simulations were conducted using an unsteady, compressible solver with the<br/>Reynolds-average Naiver Stokes model to determine the effect of distance between the pods on<br/>the aerodynamic characteristics and pressure wave behaviour in the Hyperloop system.<br/>Moreover, the aerodynamic drag and pressure wave characteristics were determined theoretically<br/>based on the quasi-one-dimensional conditions to compare them to the numerical results. The<br/>flow conditions around the pods were divided into three different flow regimes based on the<br/>speed of the pods. In the flow regime 1 ( ), the compression waves develop into<br/>normal shock waves for the second pod without the occurrence of the choking of the flow at the<br/>throat. However, no shock wave occurs for the first pod due to the interaction of the low-pressure<br/>expansion wave and high-pressure compression wave at the tail of the first pod. Moreover,<br/>increasing the distance between the pods results in smoothening of the pressure distribution<br/>around the pods. In the flow regime 2 ( ), choking happens at the throat of the<br/>second pod and an oblique shock wave starts to appear within the tail section of the pod.<br/>Moreover, no chocking is observed for the tail section of the first pod, due to the low-pressure<br/>expansion wave and high-pressure compression wave between the two pods. Increasing the<br/>distance between the pods delays the interaction of the two waves, but overall due to the highpressure value at the tail of the first pod, no shockwave phenomenon is observed. In the flow<br/>regime 3 ( ), the oblique shock wave at the tail of the second pod is<br/>swept to the larger length and finally achieves a constant pressure value. Whereas an oblique<br/>Page 11 of 103<br/>shock wave starts to appear at the tail section of the first pod. Another major change that is<br/>observed is the decrease in the drag force value with the increase in the distance between the<br/>pods at all pod speeds. Increasing the distance between the pods results in smooth interaction<br/>between the trailing oblique shock wave of the first pod and the leading normal shock wave of<br/>the second pod. This results in a lower pressure value at the tail end of the first pod and at the<br/>head of the second pod, which results in a low value of pressure difference between the head and<br/>tail sections of the pods and hence, a decrease in the total drag value. Based on this study, it is<br/>found that increasing the distance between the pods delays the pressure waves interaction which<br/>in turn results in a decrease in the total drag value. |
| 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. Zaib Ali |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/30566">http://10.250.8.41:8080/xmlui/handle/123456789/30566</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 | 05/15/2024 | 621 | SMME-TH-720 | Thesis |