2016/5/26
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2016/5/26
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2016/5/26
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2016/5/26
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2016/5/26
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2016/5/26
6. uy=0 N-S XgsinYgcosx gsinp2uxxy20y gcospx0y pgycosfx yppafxpagcosppagycos px pxN-S d2uxx0dy2gsinugsinx12y2C1yC2y0ux0 gsinyduxuxdy022yy26
2016/5/26
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2016/5/26
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2016/5/26
9.20oC0.15m/s0.025m 0.0125m =5.0xRe1/2x2xu01.2050.1512.51035.01.811055.00.0624m Rexu00.06241.2050.15x1.811056235105 10.ux1ey/u0duxdx0u1uxdysu2xu00u00 y =yduxudx0u1xdyd11eed0.2ds0u0dx0dxu209
2016/5/26
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2016/5/26
uu u2x00uxuxdy0u01uxdy 0u0ddx0u0uduxxuxdydyu2yyy0001sin2sin2dyu21001sin2sin2d1u22cos210244sin0u22102 duxu0yu0dyy02cos2y02 ddxu2212u00212x211.46u11.46x24.79xRe1/2x0u0x0sCu2Dxu022CDxu1/21/20.656Rex04.79u0xRex11
2016/5/26
1.r11mt1200oCr22mto2100Ckk01tk0k00.138W/mK,1.95104K1 qAktr kk01t A2rL 1tdtqdr2Lk0r12
2016/5/26
1tdtqdr2Lk0r 1r11,t12002r22,t2100t12t2q2LklnrC0Ct12q1212t12Lklnr1200273.21.95104200273.2495K02q2Lk1210t2t495lnr q2kt121L022t2495lnr23.140.1382100273.2121.95104100273.224951ln2135.3W/m2.1m/s293K353KRexc5105750kg/m33103Pas0.15W/mK200J/kgK1hx2 hx xRexc51053103cp2003103cu17502mPr0k0.15413
2016/5/26
hx0.332kxRe1/2xcPr1/30.3320.1551051/241/327.95W/m2Kc2 dtdyT30Ts2T30Ts1/3y0,xxct2PrT0Ts3124.x1/2Pr1/3293353311/241/3100885K/mcRexc24.25105 hm2hxc227.9555.9W/m2KqAh2mTsT055.93532933354W/mm 14
2016/5/26
1.A,BNANBCDABDBA NdxAACDABdzxANANBNCDdxBBBAdzxBNANB NCDdxAdxBANBABdzDBAdzxAxBNANBxdxAdxAxB1dzBdCdxdxzDAAABdzDBAdz0DABDBA2.CH4AHeB1atm298KCH4He0.02mCH4p4A16.0810PapA22.03104Pa,1CH4umJA;2CH4NACH4-He1.013105Pa298KD4AB=0.67510m2/s 1 JDABARTzpA1pA20.67510483142980.026.081042.031045.52105kmol/m2s15
2016/5/26
2 NDABpAJpApBMRTzppA1pA2BMpp4BMB2pB1pA1pA26.08102.031045.846lnpB2ppA21.0131054104Papln2.0310pplnB1A11.0131056.08104N5.52105A1.0131055.8461049.565105kmol/m2s3.1mm297K1atm0.002kg/kg297K997.2kg/m322.38mmHg-DAB=0.2610-4m2/s5mm pA122.38133.322983.7PapA2cA2RT0.002/180.002/9971/1.18314297326.2PapB2ppA2101325326.2100998.8PapB1ppA11013252983.798341.3Pa16
2016/5/26
ppB2pB1100998.8341.3BMlnp996.1PaB2pln100998.8B198341.3NDABp0.261041013252983.7326.2ARTzppA1pA2996.151035.69106kmol/m2sBM8314297NAAMAA1103N997.261736.4s2.7hAMA5.69104.A,BCDCH42H2OCO24H2ABCDA NCDdyAAAMdxyANi NB2NANCNAND4NANiNANBNCND2NA17
2016/5/26
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2016/5/26
6.15m5m0.52.2m/s298K298K0.023kg/m30.26104m2/s51051.185kg/m3,1.835105Pas ReLu032.21.1855L1.8351054.26105510Sc1.835105DAB1.1850.261040.5960cx0.332DABLRe1/20.3320.26104k1/2x34.26105=1.877103m/sk02k03cmcx3.75510m/smk03cmAAsA03.7551090.0230.50.02336002433.5kg7.Sh2.0 GcAANA4r2dcA0DAB4r2drdc1rrNDcAsADABcAscAAAB0cAcAsr202rcdrrrAcA0r200N0AkccAscA kcr0D1ABShk00cd0kc2Dr02.0ABDAB19
2016/5/26
5.26 5.27 6:00-8:00 5.28 20
