ISA [kPa, rho]

#1 Posted: 5/28/2019 9:52:14 AM

983 likes in 6,866 posts.

Group: User

On the day you will go to Haven, don't forget your bottle,
air is pretty thin up there !

Inst_ISA [kPa].sm (61.94 KiB) downloaded 658 time(s).
Inst_ISA [specific rho].sm (155.14 KiB) downloaded 709 time(s).

#2 Posted: 5/29/2019 10:24:41 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

1. refreshed/augmented [kPa], [rho]
2. augmented from latest Ralph Carmichael
3. added solve NASA(h)
4. by same token => Mach sub/supersonic.

Inst_ISA [kPa] solve NASA.sm (19.88 KiB) downloaded 721 time(s).
Inst_ISA [kPa].sm (261.98 KiB) downloaded 689 time(s).
Inst_ISA [specific rho].sm (229.24 KiB) downloaded 655 time(s).
Inst_Mach Number Pitot.sm (187.05 KiB) downloaded 856 time(s).

#3 Posted: 5/29/2019 6:37:53 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

... here is the missing link, NASA altitude vs kPa.
Two gorgeous segments from discrete NASA inverser
collected in the data inverse. Discrete solver included
as demo for other applications ... play with that one.

Jean

Solve INVERSE Recursive NASA.sm (12.69 KiB) downloaded 799 time(s).
Inst_ISA [kPa] solve NASA altitude.sm (107.66 KiB) downloaded 689 time(s).

#4 Posted: 6/2/2019 7:32:58 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Revisit/resume km_kPa ... from several proposals:
1. Thiele two segments
2. Transmute modified Carlos
3. Wolf-Rabbit two segments
4. HKL [simple/corrected]
5. Exact_4 [± 0.001 m ... 0 m up ~ 11 km] <= ! ! !

Inst_ISA [km_kPa] solve NASA Reconciliate Copy.sm (137.46 KiB) downloaded 667 time(s).

#5 Posted: 6/3/2019 10:36:44 PM

CBG

78 likes in 312 posts.

Group: User

Hillo Jean
This is another approach

Best Regards

Carlos

#6 Posted: 6/4/2019 12:51:38 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
Hello Jean
This is another approach

Thanks Carlos, tested page 13.
The all range [0 .. 101.325 kPa] ... [0 .. 60km]
resumed in 4 segments of same format, zero error page 11, 12
NASA is short of accepting @ 60 km, pressure still exists !.

Jean

Inst_ISA [km_kPa] solve NASA Reconciliate.sm (196.66 KiB) downloaded 738 time(s).

#7 Posted: 6/4/2019 9:00:35 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
The all range [0 .. 101.325 kPa] ... [0 .. 60km]

... final reconciliation pages 14, 15
Tiele 13 terms converted to J continued fraction
Just a peanut ... truncate β at will, reasonably, checking Δm.

Jean

Inst_ISA [km_kPa] solve NASA Reconciliate.sm (215.38 KiB) downloaded 713 time(s).

2 users liked this post

frapuano 6/4/2019 10:19:00 AM, NDTM Amarasekera 6/4/2019 11:43:00 AM

SMath

ISA [kPa, rho]

ISA [kPa, rho] - ISA [kPa, rho] - Messages

SMath Forum

ISA [kPa, rho] - ISA [kPa, rho] - Messages