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7_23 - ’7 23 The 11111 91111111111196“ of a torpedo are...

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Unformatted text preview: ’7 23 The 11111;; 91111111111196“ of a torpedo are to be studied in 11 water tunnel using a 1: 5 scale11111111:1.Thett:11nn1l op11'111es with treshwatei at 20 "C whereas the prototype to1pedo 19 to he used in seawater at 15.6 0C. To coireetly simulate the behavior 01" the prototype moving with 11 velocity of 30 m/s, what veloe 1ty is required in the water tunnel? Assnn'le Reynolds number similarity. 5r dynamo 51m; Air/7‘5 77m Began/0’5 number musi' fie five Jame {gr Made/ am/ ,Omz‘oigpe 77116 50 7772i 50466 V (Wafer @ 920°C): /' 0064 Xlo~6rm% [filly/e B Z) V [sea/1mm @ /5‘.é°6)= //7x/o ‘xm/ (7mg /5) 4nd D/Dm 35/ It Afloat: W141i {noowx/"é—fl' ) V: 5 4” : ’1". m {Anna/o“ 333) (5)/3o-— ) AZ? 5 M-_w—m—_————___W____WW -_... “WM”...— 7'27 ”AZ. 2 3 jwHummuw_,.ngmxmmm_mxmwmmmmm-mu-‘Ww—m ...
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