HW 9 - A§E 3631; . Assignment No 9 Thursday, March 20,...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: A§E 3631; . Assignment No 9 Thursday, March 20, 2008 1) A c-d nozzle has been designed for an exit Mach number of 1.8. The nozzle is supplied with air at a fixed P0 of 6atrn l/Exlwauskier ’(l// ///l Initially the back pressure is also at 6atrn'and is then lowered using the exhauster. a) at what value of back pressure will we first get M = 1 at the throat? b) what is the back pressure for the nozzle flow to be ' tr ' dCSign Mad] #? 1sen opically expanded to the c) over what range of back pressures will there be a normal shock wave in the nozzle. 2) Two c-d nozzles with identical ,. .A i are to a. The flowfields are shown below. Whieh one is operating at the higher 130? Explain yoar answer. " " C a 5‘ a) c a se la) sh} lulu 3), ehliqae forms at anozzie exitpiane lip. M1 = 4.0, B = 50° and the is incident on a constant pressure boundary, what is the Mach N“ downstream of the reflected expansion and what is the flow direction relative to the flow upstream of the shock? ———— — _' '— ‘\ \\\ reflected EXFauSs'cn 4 ) What is the percentage increase in net thrust of the rocket motor shown below if a divergent portion of area ratio A2/A* = 1.5 is added to the sonic nozzle. For assume isentropic flew, Cp = 103J/kgK, 7 =14. To’ lea-ck Pg: 3 T12 noi‘b‘e u des. Sneak News‘s“ - Hal __ (\gzo 'EFW A "I i. UJQ, AQQOK OM “ea (QWQ Ae /P\ “k ’— /- H—gq Hm fiOZRJQ \L {inhi— Ckokeok wIH. M =. 4, 0,5 We Wreck de SuJosOvu'c, 9w a; We S€C\\‘\'0v~ . QM mb-R A ’4. ¢ out- A : I. H oJr ex‘d- —_ o - 4er (a; swam“ um (5+ A/Axcw9_ ' 3'? Pi? Ht, 5P0 : (‘+\€-‘ r11) = l-ISZ “as We nozzLfi w£H R okohed {Or <2“ mm 3 {'ISl aka-CA1. F resst 1:? (cu: O‘Lw‘usf‘nm Lil . 5'1 gar a nor-mox‘ 5&0an u; “we QKH‘ (3‘qu l-OH—H-Z aka. He 5 /‘ ~‘\ _.-_ F0 1:. :(‘M We WWMQ\ SLodk WM h ‘ t \ {or “us {wax \novmak sLocA. 4y; _...._j.’L.e..v--eij _P\ame.w ‘ .111: .... .. Laud“- Plfssm ,u' {Dz/Fe = %'6(3 We MSW?)- t6 UJCLS S" l QF‘MOS‘ < 0,: we. rem ShS/‘H‘s \oeiw HA”; woe a novwa( SkOCJA N M $145“- OlOM 5W QQW‘ 0+ n'x‘e m oizLQ (cok— mu‘; he 0'? PPESS'urQS a nwmeJ Sued «A. We AOL-dz u 3 ~ 7-7— 51; 5' 2 mchstn/e; .' For N: l‘ J P0 7. I '— /‘OL'H4‘ GEM». “(3 57% .. £5: a. Cxeou‘xolQOX Sufi-2.13% “L weL'LI-e, We \oo‘dm- ‘Fresbwe 15' II- 0 4H- QFmesrkw-N We have Iv; “1Q em.» PMM. L101) I: 0,4)“, t; m§pozrd back. prwwe. H" m st:er shock wave. :9 nerdrd (on m' mac (5)) Harm “'3! Fre3>wr2 wl “at €x'.\- p‘ome war lot lower Can‘t: a Iowa)" Prepwre N'Jt .3 «1:9on l? 33% H»: pressm l6 he wapoxd 1W3- H- M. mule [am as iow em prmpm > mule Punnwg :‘JGmW/Oflicqllg \fikfnmllb Cop Law co.“ q¢>3 not“ H. m“); km 6\ ‘0” Po . (2'. Ca“ (‘9) LP» his: lover Po. 27 fit . J / ht M,= a— and V [3 = 50° The“ 519]?) Ska» Wak- e” deHed-S ’ “FIFOqu 33.0933. MY“ "'- H‘sm'fi: 1+5an $0 : 3'06? Rm normfl skoch NAOJ-Tav-A Mn}. :- O‘H’?‘|_, Pozlpo‘ =- 0-3106 ' N000 Po; 7' PM (PXpaMMfa-l .S brats-ark. Md P3 :. PQ Cphbficod necrwfl‘s f6 mania». PM ai- 'DNnfilw3\ / PO\IP1(H'=-H'_>: ff} 2.8:). = (3:: :- ESL E) = Arms P5 P3 Pl PM P, o ’0‘“ H3 6 wquw H Sure: M: (303193 1.1.1.7..” (1' [739.346 and Y3=V("L> =YC3'I6_>= 51.9.5 - ‘7”, “qt exfomn'ay. (an; “‘2 nt0u3\\ V(H3)“(n:> = ’52.~?S‘- 5’er -. 3+gg° n“) re|a¥~m ‘33 figs» u; i. > “I? have O‘CH‘QCH—w a u-o? + 79-33" = 17'0‘H‘oCu/wuda) A] T: ukue'l-(Fe-Pchc w fi/T*CH=_«>-— r-z «Tn mm: W -= Cyrawb'a ‘ Mun-$45 —_ Me Po/P“‘ (IT-=1) = ('gfizq P“ = l-§?s’xlo‘ = Pa .Ac: A* 3 So r7W“: T/A* —_ (Fe-@wime/M nl/R* = (>*A”<U*/A” = (VXWK ‘ Q’*/BT*‘> \l" = 1°. 6'-?~H-.~.!s - F/Ax = ((-secxto*‘—|o€>+ (acun-uz>(;q4-s} ; 1-9'O'l-fX'lOé/V/phl C539,: d‘ablswv- Sad-m1. : r12 - (1-96 '5» A rod-'2. =t-“50 .11: wesxto‘J T"l = anmsrr 5 v,_ =6za-asxl-86 -— NW. 252.]: n‘. /;\-"r u' fie Say: 3 Wat-3 A: =- l-‘S.’A“k ._ .- . F'/A“r = Cl-S‘)(H'?6xto§“hues—>4»(2q6?—.l+2>(ll?-I-3€> : gogaxtoa/v/Kt Wind" ram > ‘ ..‘f‘°3q/1'}O‘+ 7* I-o°| 0‘ 01% “MAR . ...
View Full Document

This note was uploaded on 02/14/2012 for the course ASE 362K taught by Professor Dolling,d during the Spring '07 term at University of Texas at Austin.

Page1 / 7

HW 9 - A§E 3631; . Assignment No 9 Thursday, March 20,...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online