000			02924cas a2200385 a 4500
005			20260818090056.0
008			110902s1979 th uu|m rtt 0| a1eng d
035			_a.b10188241
099		9	_aAIT Thesis no.AE-79-12
100	1		_aDutta, Sunil Ch.
245	1	0	_aDesign and calibration of a simple rainfall simulator
260			_aBangkoK : _bAsian Institute of Technology, _c1979
300			_a61 p.
490	1		_aThesis ; _vno. AE-79-12
500			_aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1979
520			_aA simple rainfall simulator at a height of 2.5 meters above the ground surface and consisted of a steel frame, a net and spray nozzles used for determining different characteristics of rainfall such as, fall velocities of raindrops, drop size distribution, kinetic energy, momentum, at nine different rainfall intensities, varying from 21.34 mm/hr to 105.16 mm/hr and finally this simulator was calibrated to develop relationships among gate-valve pressure, rainfall intensities, drop diameters, rainfall distribution, drop size distribution. The average distribution efficiency of rainfall was found to be about 85%, which indicated that the rainfall distribution over the area covered by rain was quite uniform. In case of drop size distribution of rainfall, it was found that the drop size distribution curves followed a definite pattern. The median volume drop diameter of rainfall was found to be varied from 2.35 mm to 2.83 mm. As the height of fall for the simulated raindrops was only 2.5 meters, so the fall velocities attained by the drops were only 75% of the terminal velocities and due to this, the momentum of raindrop was also 75% of that of natural raindrop and kinetic energy of simulated rainfall was about 53% of that of natural rainfall.
650		0	_aRain and rainfall
700	0		_aApichart Anukularmphai, _eChairperson
700	1		_aBanks, Robert B., _eExamination Committee
700	1		_aEggers, Helmut, _eExamination Committee
710	2		_aThe Belgian Government, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. AE-79-12
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B22212
907			_a.b10188241 _bmnait _cx
902			_a250605
998			_b2 _c951012 _dm _ea _fx _g0
945			_lmnait
945			_lmnarc
942			_c22
942			_c40
909			_aBarcode : 30050120584338 _bCREATED : 2013-08-07 _cRECORD # : i12735292 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : 30050160053194 _bCREATED : 2016-05-18 _cRECORD # : i12981825 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c26807 _d26807