AI SearchMathematical modelling of flow circulation and water quality in the Rajjaprabha Reservoir, Thailand (Record no. 73976)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04417nam a2200457 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818154604.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170698 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10427004 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. WA-92-31 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Thana Boonyasirikul |
| 245 10 - TITLE STATEMENT | |
| Title | Mathematical modelling of flow circulation and water quality in the Rajjaprabha Reservoir, Thailand |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1992 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 76, A-9, B-2 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. WA-92-31 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis report submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1992 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | A multi-layer 2-D depth average mathematical model is applied to simulate the flow circulation and water quality condition in the Rajjaprabha reservoir in June, 1990. The multi-layer approach is used by dividing the reservoir water body into three layers. Each layer is fixed in space and the hydrodynamic condition is governed by the two-dimensional depth average continuity, momentum and dispersion equations. Field data is collected at 6 sampling points in the reservoir and are used as the initial condition and for comparison with the computed results. The thickness of the top and middle layers are set to be 10 meters each to represent the significant variation in the concentration profile of the considered water quality parameter. The remaining depth is considered to be the bottom layer. The computation of hydrodynamic condition between the adjacent layers is connected by the interfacial shear stress for momentum transfer and by the inte1face mass exchange for continuity while the interfacial vertical diffusion is the linking term for the transfer of water quality between the adjacent layers. Due to very small flow velocity during dry seasons, the computed flow condition from the hydrodynamic model is found to have not much influence on the computed water quality from the dispersion model. The considered water quality parameters are iron contents, DO (Dissolved Oxygen) and BOD (Bio-organic Oxygen Demand). The computed concentration is checked with the collected data to verify the model. The calibration of relevant parameters is can'ied out by adjusting the hydraulic and dispersion parameters so that satisfactory results of simulation are obtained. It is found that, due to very small velocities in the reservoir, the model parameter such as ·Manning's n does not have significant effects on the computed flow condition while for the dispersion model the most important parameters that control the dispersion process are the prope1ties of substance namely the settling velocity and the decay rate. Sensitivity analysis has been carried out to determine the effect of model parameters. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water quality |
| General subdivision | Mathematical models |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Rajjaprabha Reservoir |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Hydraulics |
| General subdivision | Mathematical models |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tawatchai Tingsanchali, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Suphat Vongvisessomjai, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tanaka, Hitoshi, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Nor Consult International A.S., |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. WA-92-31 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B17300">http://203.159.5.9/ait-thesis/detail.php?q=B17300</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10427004 |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240401 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 1 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003055554 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10533254 |
| LPATRON | LPATRON : 1012277 |
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| Barcode | Barcode : 30050003055562 |
| CREATED | CREATED : 1995-06-01 |
| RECORD Id | RECORD # : i1177406x |
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| CREATED | CREATED : 2016-02-15 |
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| Barcode | Barcode : 30050121099138 |
| CREATED | CREATED : 2023-11-10 |
| RECORD Id | RECORD # : i13468170 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. WA-92-31 | 30050003055554 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. WA-92-31 | 30050003055562 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. WA-92-31 | 30050160033063 | 18/08/2026 | 18/08/2026 | 40-Archives | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. WA-92-31 | 30050121099138 | 18/08/2026 | 3 | 18/08/2026 | 20-AIT Publication |