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Water Hammer - Método de las Características

Presentación sobre el Método de las Características, water hammer

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Celeridad <strong>de</strong> la Onda <strong>de</strong> Presión (c).<br />

c =<br />

K ρ<br />

1 + ( K E)( D e)θ<br />

0.5<br />

μ: Coef. <strong>de</strong> Poisson’s <strong>de</strong>l material.<br />

Acero y el hierro fundido μ ≅ 0.3.<br />

E (acero)=2x10 10 Kg/m 2 (μ = 0.3)<br />

E (PVC)=3x10 8 Kg/m 2 (μ = 0.45)<br />

E (HDPE alta <strong>de</strong>nsidad)=9x10 7 Kg/m 2<br />

E (HDPE <strong>de</strong> baja <strong>de</strong>nsidad)=2.4x10 7 Kg/m 2<br />

E (hormigón)=4x10 9 Kg/m 2 (μ = 0.3)<br />

Temp. °C<br />

θ = 1 − μ 2<br />

θ = 1 − μ 2<br />

θ = 1<br />

Mod. E<strong>las</strong>ticidad Vol.<br />

0 2.2x10 9 N/m 2<br />

θ = Depen<strong>de</strong> <strong>de</strong>l tipo <strong>de</strong> aseguramiento, juntas a lo largo <strong>de</strong> la tubería forzada.

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