:_i!

co

rM

O

,- v

m

u"- q,/ /////z7'////

MEASURED TEMPERATURES

8

0 .8 1.6

DISTANCE FROM

\- -- RUBESIN PREDICTION -

..... i

2.4 3.2 4.0 4.8

LEADING EDGE, x, ft

Figure 9. - Example for constant temperature followed by adiabatic wall.

3O

0

TEMPERATURESPREDICTED USINGISOTHERMAL

EQUATION

RATURESPREDICTED BYPRESENT INTEGRALANALYSIS

0 MEASUREDTEMPERATURES

MEASURED HEAT FLUX

.8

0

1.6 2.4 3.2

DISTANCE FROM LEADING EDGE, x, ft

Figure i0. - Example for pulse heat input.

0

0")

28

I.=..

. 24 /\

w 20 .r

w

w 16

u.

E

re 0 MEASURED TEMPERATURESLU(3.=EWI--

12 i

4 q

0

0

51

45O

A

350 ..........-. PREDICTED HEAT FLUX

vMEASURED HEAT FLUX

500 .8 1.6 2.4 3.2 4.0 4.8

DISTANCE FROM LEADING EDGE, x , fl"

Figure ii. - Prescribed temperature treatment of irregular example.

52

400

N-

O-

i.

m

m

X

20014.

hi"r

100'

A

,A

Z_MEASURED HEAT FLUX /_

r r

APPROXIMATION BY __//

STEPS AND RAMPS

L=

'\ / \ N

32

li..o

4,--

ILl0ZWn,'hihU. 16

o

w

F-

Q.

I-

0

8

/

0 MEASURED TEMPERATURES /\

/ \/

/ ,q \

" ///\ \._"1 / O_

/ II PREDICTED --_ / rv/ ' O N

: / :_ TEMPERATURES/ -.

I i ,I "_I L !

| "--...._ .-._ I''--._TEMPERATURES PREDIGTED FROM- _ .-I --' ISOTHERMAL EQUATION --

.8 1.6 2.4 :5.2

DISTANCE FROM LEADING EDGE, X , ff

4.0 4.8

Figure 12. - Prescribed heat-flux treatment of irregular example.

NASA - Langley Field, Va.