Interdisciplinary Applied Mathematics

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n2


He


Pin (kPa)


800


3398


3115


Pout (kPa)


102.8


101.2


91.93


Р^Ш


9.16


38.57


5.05


Pout (&)


1.18


1.14


0.15


Tin (C)


21.11


23.65


23.92


Tout (C)


21.2


23.7


23.99


Pn (?)


3.9


0.19


0.18


Vout (?)


30.5


6.55


6.05


Re


17.324


0.433


0.0462


Min


0.0117


0.00057


0.00018


Mout


0.0915


0.01965


0.00598


Knin


0.001


0.002


0.0002


Knout


0.008


0.067


0.209


Knexperiment


0.008


0.066


0.214


Knaverage


0.0022


0.0096


0.00096


/exp


4.4


215


1820


/fanno


4.0


205


1763


Po


Re


5.18


220


2063


/slip


5.147


214


2057


4 fL D


5129


2,215,253


18,501,616


(77-^choice)


5210


2,217,097


19,043,788


_Ш_


1287


10797


10797

number gets smaller. However, the change in the Mach number of the flow is very small at the inlet section of the channel. The density ratio variation in the channel is given in Figure 4.6 (right). Even if the Mach number variation is small for about 60% of the channel length, a density variation of 20% is obtained in about 35 to 40% of the channel length. The pressure ratio (p-) variation is given in Figure 4.7, where the curvature in the pressure distribution can be seen.

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