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Study material for Fluidodinamica, shared by the Studwiz community and reviewed by moderators.

FluidodinamicaComplete set

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Fluidodinamica PROPRIETÀVETTORIALI - COORDINATECILINDRICHE y ✗ = r COSY Er= COSIle+Sinfey yr e.a ±= ( y= rsnq |e,= - snqex +coseq,ez ey ✗ E- er 2-= z Ez= CI • GRADIENTE : = I C-t t t ) la + I Ez Jr t If Zz • DIVERGENZA: - ° I = 1 2(t✗t)+ 1 2✗y + 2✗z t pt t 29 Zz • laplaciano : - < ±= = ✗r - Xr - 2 2Xp E-+ = ✗y- Xp- [, 2✗t legt " ✗z ez- - - 1-2 1-2 39 1-2 39 =p= 1 gy, + 27y, + >f p, 2271- > y, + 1 zzz iv.b. fE IR, I E 112" ° ROTORE: - n I= 1 2Xz . 2×9 Ert JXP. 2Xz Eqt 1 )(tXp) - JXR ez t >q >z az at t per >4 - COORDINATE SFERICHE + GENERICOPIANOMERIDIANO y O r 9Y z O z z- X X - - µ= . 0:21T. - . O= - 0: IT. • GRADIENTE: 7 let 1 J e]t 1 J eq- at t Jr i.sino 79 ° divergenza : 1 2(Fir) t 1 J (XOsin @)t 1 Jay2 " Jr rsino 30 +sino al 2 2 ° LAPLACIANO vettore : - I = Xr - 2Xr _ 2 2(XOsino) - 2 3Xp Ert t' Esino 20 r'sino al + ZXO- XO t 2 >Xr - zcos.lt >xp e]t ' Xp- XO t 2 JXR t 1-2sino r ' 70 resisto 24 Hsiao resina 79 [COSO 2×9 la Hsiao sy ° LAPLACIANO scalare i 27= 1 2 rtOf t 1 2 sin@>f t 1 Jefitat at its.noso se Esino292 ° rotore : - n I= e 2 (XOSINO)- 2×0 Ert 1 1 str - J (txq) EOt +sino 20 29 r sino 74 ar + 1 J lrxo)- ser fa'- ar so PROPRIETÀDEI FLUIDI 1)IPOTESI DEL CONTINUO 2)FLUIDO COME continuo DEFORMABILE 3)DEFINIZIONE EMPIRICA DI SFORZO TANGENZIALEin un FLUIDO IPOTESIDEL CONTINUO • DOMANDA: QUANTE MOLECOLE Di aria in 1 cm3? pv= nrt 19P= noi325Pa #MOLECOLE = n . Na= 2,5. 10 - 5 { += ». .. . in - "s'io no ' {na.o.io » R= 8,3 J mol- K ° il NUMERO DI MOLECOLE OTTENUTE MOSTRA LAPOCA PRATICITÀDI FARE uno studio Fluido Dinamico a LIVELLO MOLECOLARE INTRODUCO il MODELLOcontinuo CHE si BASA SUL CONCETTODI CAMPOFLUIDODINAMICOI ° LIMITI DEL MODELLO CONTINUO : 1) f= M ✓ . la DENSITÀnon ÈUNIFORMENELLOspazio , PERQUESTO MISURANDO il valor MEDIOIN UN VOLUMEDI controllo ,LAMISURA…

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