Fluidos Conversiones.docx

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g=9.81m/s2=32.2pies/s2

N

1Lb.f=1lb.masa x 32.2pies/s2

R2

1poundal = 1lb.masax1pie/s2

ds

1kg.f =9.81N =2.2lb.f

R1

1lb.f=32.2poundal 1dina=1g.masax1cm/s2

e

1kg masa = 1000 g masa 1 libra masa = 454 g =0.454Kg 1 slug = 32.2 libras masa Itriangulo=BH3/36

1pie=0.3048m 1pulgada=2.54cm=1in 1pie=12pulgadas 1stoke=1cm2/s 1psi=6895Pa

1psi = 1lb/pulg2

YCP-YCE=Ixc(ρg)(senα)/FR = Ixc/YceA

1atm=101330Pa 1bar=100000Pa

XCP-XCE=Ixyc/(XCE.A) (Si es simétrica Ixyc=0)

1lb/pie3=155.5352N/m3 1slug/pie3=514.3818kg/m3

FR= ρg(hCE)A

PCE=P en centroide

760mmHg=101325Pa dP=-ρg(dz) P2/P1=(1-(L°(Z2-Z1)/T1)g/RL° : g/RL° = 5.26 ρ2/ ρ1=(T2/T1)g-RL°/RL° A temp.constante: P2/P1=e^(g(Z2-Z1)/RT) A 0 pies de latitud: P1 = 14.696psi T=519R L°=0.003566R/pie Z1=0 Z2=dato L°=0.0065K/m ρ1=1.22kg/m3

T=T1-L°(Z2-Z1)

ζ=u(Dv/dy) : u=cte prop.viscosa / v=velocidad de la superficie / y=espesor del fluido lubricante ζ=F/A F=fza q se aplica a la carga móvil / A=Area de contacto con el fluido u(Kg/m.s) (viscosidad dinámica) £(m2/s)=u/p : p=densidad del fluido lubricante / u = viscosidad dinámica Rotor: Pot = (Torque)(vel.angular) Fuerza:dF= ζ(dA) / Vel.angular:w=N(2π/60) / velocidad:v=wx / Area:dA=2πx

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