Air entrainment from aeration grooves of square shape (Record no. 3474)

MARC details
000 -LEADER
fixed length control field 02946nam a2200385 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20260817162014.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 210598 th eng
035 ## - SYSTEM CONTROL NUMBER
System control number .b10063754
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number AIT Thesis no.WA-86-5
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Hameed, Tahir
245 10 - TITLE STATEMENT
Title Air entrainment from aeration grooves of square shape
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 78 p.
490 1# - SERIES STATEMENT
Series statement Thesis ;
Volume/sequential designation no. WA-86-5
500 ## - GENERAL NOTE
General note A thesis study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502 ## - DISSERTATION NOTE
Dissertation note Thesis (M.Eng.) - Asian Institute of Technology, 1986
520 ## - SUMMARY, ETC.
Summary, etc. High velocity flow in hydraulic structures tends to deflect the water stream from the surf ace and forms a low pressure zone beneath it. Due to low pressure, "cavitation" occurs which is the formation and collapse of vapor bubbles in a liquid. Compared to other methods, air entrainment into the flow to prevent cavitation by an aeration device is effective and more economical. But at present, no standard criteria is available for the design of aeration devices and the space interval between them. In the present study, al together sixteen (16) square type grooves with deflectors were experimentally tested in a steep slope rectangular open chute. Mainly, two sizes of grooves, that is, 5 cm and 7 . 5 cm with square cross-section were chosen and each one was tried with various deflector angles. Air concentration was measured downstream of the device along the centreline of the chute by an air-water concentration meter. A relationship which can help in the assessment of the effectiveness of the square grooves with deflectors was derived using different dimensionless parameters. The design criteria for the selection of spacing between this particular type of aeration device was also established and is valid only within the range of the study.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Water
General subdivision Air entrainment
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Prida Thimakorn,
Relator term Chairperson
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Tawatchai Tingsanchali,
Relator term Examination Committee
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Wang, Tsan-Wen,
Relator term Examination Committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Canadian International Development Agency,
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-86-5
856 ## - ELECTRONIC LOCATION AND ACCESS
Materials specified Full-Text
Uniform Resource Identifier <a href="http://203.159.5.9/ait-thesis/detail.php?q=B19781">http://203.159.5.9/ait-thesis/detail.php?q=B19781</a>
907 ## - LOCAL DATA ELEMENT G, LDG (RLIN)
a .b10063754
b mnait
c s
902 ## - LOCAL DATA ELEMENT B, LDB (RLIN)
a 240409
998 ## - LOCAL CONTROL INFORMATION (RLIN)
Operator's initials, OID (RLIN) 2
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 mnarc
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type 22-AIT Thesis (Replacement)
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type 40-Archives
909 ## - LOCAL ITEMS USED
Barcode Barcode : 30050120573406
CREATED CREATED : 2014-02-04
RECORD Id RECORD # : i12786548
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909 ## - LOCAL ITEMS USED
Barcode Barcode : 30050160035043
CREATED CREATED : 2016-09-02
RECORD Id RECORD # : i12878844
LPATRON LPATRON : 0
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Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Cost, normal purchase price 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 17/08/2026 50.00   AIT Thesis no.WA-86-5 30050120573406 17/08/2026 3 17/08/2026 22-AIT Thesis (Replacement)
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library Archives 17/08/2026     AIT Thesis no.WA-86-5 30050160035043 17/08/2026   17/08/2026 40-Archives
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