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Solution for seepage and percolation in paddy fields using finite difference techniques (Record no. 109371)

MARC details
000 -LEADER
fixed length control field	03197cas a2200421 a 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20260818214636.0
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fixed length control field	110910s1986 th uu\|m rtt 0\| a1eng d
035 ## - SYSTEM CONTROL NUMBER
System control number	.b10618107
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number	AIT Thesis no. AE-86-04
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name	Kalita, Prasanta Kumar
245 10 - TITLE STATEMENT
Title	Solution for seepage and percolation in paddy fields using finite difference techniques
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc.	Bangkok :
Name of publisher, distributor, etc.	Asian Institute of Technology,
Date of publication, distribution, etc.	1986
300 ## - PHYSICAL DESCRIPTION
Extent	89 p.
490 1# - SERIES STATEMENT
Series statement	Thesis ;
Volume/sequential designation	no. AE-86-04
500 ## - GENERAL NOTE
General note	A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 ## - DISSERTATION NOTE
Dissertation note	Thesis (M.Eng.) - Asian Institute of Technology, 1986
520 ## - SUMMARY, ETC.
Summary, etc.	In some South-East Asian countries where farm sizes are small, a large amount of irrigation water is lost from the paddy fields into surrounding fallow fields through the bunds. The magnitude of both lateral loss known as seepage and vertical loss known as percolation are to be accurately determined for better management of irrigation water. An attempt was made in this study to determine the magnitude of seepage and percolation separately in paddy field condition with variable water table and ponding water depths for different soil textures. For this purpose, the two dimensional steady seepage equation was converted into finite difference expression and the solution was obtained by relaxation technique. A computer program was developed to fit all the boundary conditions and to compute the final improved potentials by the process of iterations. Darcy's law was applied to calculate seepage and percolation from the improved potentials . It was observed that seepage and percolation increased with deeper water table, higher ponding depth and higher value of hydraulic conductivity of the soil . The findings of this model conform to observations done by field experiments.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Soil percolation
General subdivision	Mathematical models
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Seepage
General subdivision	Mathematical models
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Rahman, Md. Ataur,
Relator term	Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Gupta, Ashim Das,
Relator term	Examination Committee
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Nielsen, Jens Moller,
Relator term	Examination Committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element	The Royal Government Of the Netherlands,
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. AE-86-04
856 ## - ELECTRONIC LOCATION AND ACCESS
Materials specified	Full-Text
Uniform Resource Identifier	<a href="http://203.159.5.9/ait-thesis/detail.php?q=B19566">http://203.159.5.9/ait-thesis/detail.php?q=B19566</a>
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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 : 30050003001293
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Holdings
Not for loan	Home library	Current library	Shelving location	Date acquired	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. AE-86-04	30050003001293	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. AE-86-04	30050003001327	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. AE-86-04	30050120300180	18/08/2026		18/08/2026	40-Archives

Solution for seepage and percolation in paddy fields using finite difference techniques (Record no. 109371)

AIT

Asian Institute of Technology Library