Impulse Function

Inpulse function Niolds The Sum of pressure force PA) and inspube fore (SAC2) is called Impulse function (F) or wall function F= PA + PAC2 I 7 P2 C2 P2 Flow P, C,P, ) A1 T + A2 Thrust I 1-> 1 the 2 dust one disensional The flow a experienced thrust is shown a result in the director 13 of show the dust No. bhw. the C/S 1 by and Mach bro change pressure J in ( to + C and a Functu 525 charge Impuls (II = = + P2 AG2)- (P,A, + P,A,C,2 - 2 [= (RA2 For a perfect ga. P PV= = MRT c2 P.= PT PC2 = RT Mrs in right fr P, PIRT Mustiplym and dividing XIP M rpc2 RT SC2 rRT a= frey Ic rpc2 a2 M Sc FPM2 F= PA + A TPM2 3 F= 3 in 2 2, + T= P, A2 (It TMI) I threst exented find out This equation by the flowing fluid Mach Number. using

TO obtain a velation b/w the non dimensional 7/1 impulse function and the { Mach Number the flow , is assumed tentrope At M=1 F= F+ PIV F*- P"A"C1+r] m NS I F PA(H+rMP) 5 - f* PA([Hr) 5 6-1 We law P - 2 + ( TH 6 pt 511 rH (7) r-1 M2 2(5-1) 1 2 A + rtl 5H TH 6 and I in s 2 + 5-1 TH )M" M rtt 5+ rH x Hr F = (5+1) G Fo -1/2 2 rt M2 Termin r 5H I - + M rtl 211 1+r rr 2(r7) -20 trtis 1-r 2(r- F 1+rm 9 2(5- ) e 12 -1/2 F. M(Hr) ( r+ M2 2 2H rt has "39" equiption F. It rm2 Tar M (11r) 21 12 It TH FIMI) M9h F 1+rm2 FAT F M[2(2006) 19 I It 5MR . Fit with 2(rH) SA I

Fanno Flow The flow in a constant area duet with friction and without heat transfer is known as Fanno flow. es! + Gas ducts of ML1 aircraft systems T 1' * An and thoung systems. Ma=1 Reg 1 Rayley flow Ma>1 The flow in a constant are duct with heat S transfer and without friction T is known as flow. es Rayleigh + combusts chamber Mal1 Ma c B Heat excharges Healthy 7 1' mast Regeneration Caring ma>1 Intercooles may 1 Gills 5 Assumptors for Both 1. one -Dimensional steady How 2. Flow takes place in constant Oria section 3. These is no Heat transfer in Fanno and no triction in Rayleigs The perfect with 4. gan 17 Constant Specific heats 1 pnne of Refrigerator Tes = 336x1000 = 24 14000 kj/h who to 3.8kw