Page 441 - konishipaper
P. 441

               F U2 1に こ - 一 二 一 -
十241
••
Lιd
2 弘 二 F; ρ,zu
l
2
一一
砂
Jr =IU 3
F: σw
1
Thefolowingrelationsareconcludediftheflowintherealobjectandthemodelbecomes similarityastheinertiaforceandgravityforcehavesimilarity.
Jr~ =Jr~' '"2
=
ー-
ー-
(12)
(13)
Jr~
'"3
Jr~'
Ifthegeometricsimilarityratioandavelocityratioareplanedsothatequations(12)and(13) maybesatisfiedwiththerealobjectandthescalemodel.However,itisimposibletosetthe experimentsatisfiedwiththeseconditionssimultaneouslyasshownaboveequations(12)and (13).Therefore,twodiferentconditionsexperimentwasplanedforsatisfiedwithequation(12) or(13)separately.
Experimentforbehαviorofαir-dropedwater
Forthesetingoftheconditionforsatisfiedwithequation(12),themodelbecomessimilarityas the inertia force and gravity force. It means for experiment for air-drop ped water behavior discharged企omwaterbucket.Thesmalpresuretankwhichimitatedthebucketwassetonthe scafoldtowerasshowninFig.2.
Frame
Fig.2.Schematicofexperimentalaparatusforbehaviorofair-dropedwater.
、‘『ノ ハU
唱 E i
r, , 、 、
、,ノ 噌EEA
唱 E Eム /' '1
唱d
P42 QU 吋A
砂町 HC
EECgN































































   439   440   441   442   443