Abstract

Nomenclature a = sonic speed aa = reference sonic speed A = cross-sectional area cx = axial velocity cx = mean axial velocity cxb = axial velocity of the air bleeding flow c'xb = see Eq. (A2a) e0 = total energy / = pulsation frequency Fa = axial force distribution h = enthalpy h = dh/da ha = h(aa) h0 = total enthalpy hob = total enthalpy of the air bleeding flow, per unit length h'ob =seeEq. (A2b) K = see Eq. (A4) / = stage length P = static pressure P_a = reference pressure [see Eq. (A 10)] P = mean pressure Q = heat transfer per unit length, per unit time r = pressure ratio t = time W = work transfer, per unit length, per unit time x = axial coordinate 7 = specific heat ratio y = dy /da Ja = 7(aa) Y{ = see Eq. (A9a) T2 = see Eq. (A9b) T3 = see Eq. (A9c) /I = slope of the characteristic lines p = density T = time constant \l/ = air bleeding mass flow rate

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