# 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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