Skip to content

GPfit airfoil fits #105

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

GPfit airfoil fits #105

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
766b597
adding turbofan repository to external tests
mayork Dec 19, 2016
8a3cc22
initial commit of various airfoil fits
mayork Mar 28, 2017
94dc6f5
added documentation files to the fit section
mayork Mar 28, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions EXTERNALTESTS
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,2 +1,3 @@
d8
gas_solar_trade
turbofan
45 changes: 45 additions & 0 deletions gpkitmodels/fits/tail_fits/List_of_Fits.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,45 @@
{\rtf1\ansi\ansicpg1252\cocoartf1404\cocoasubrtf470
{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww10800\viewh8400\viewkind0
\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0

\f0\fs24 \cf0 NACA 0008-0020 airfoils\
\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
\cf0 Fits takes thickness, Mach, and Reynolds number and computes a profile drag coefficient for a Cl of 0\
Mach range: 0.4-0.8\
Re range: 500000-9500000\
\
u_1 = Reynolds number in 100s (i.e. 500000 is input as 500)\
u_2 = thickness as a percent (for a NACA 0008 input 8)\
u_3 = mach number\
\
cd = (2.43701e-77 * (u_1)**-0.52841 * (u_2)**133.796 * (u_3)**1022.7\
+ 0.00304307 * (u_1)**-0.409988 * (u_2)**1.22062 * (u_3)**1.55119\
+ 0.000196709 * (u_1)**0.214479 * (u_2)**-0.0383195 * (u_3)**-0.137561\
+ 6.59349e-50 * (u_1)**-0.498092 * (u_2)**1.55922 * (u_3)**-114.577)**(1/1.18909)\
\
RMS: 0.0130593057734\
Fit type: SMA\
\
\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\'97\
\
TASOPT tail airfoils \
Fits takes thickness, Mach, and Reynolds number and computes a profile drag coefficient for a Cl of 0\
Mach range: 0.4-0.8\
Re range: 500000-9500000\
thickness: 10%-14%\
\
u_1 = Reynolds number in 100s (i.e. 500000 is input as 500)\
u_2 = thickness as a percent (for a NACA 0008 input 8)\
u_3 = mach number\
\
\
cd = (5.28751e-20 * (u_1)**0.900672 * (u_2)**0.912222 * (u_3)**8.64547\
+ 1.67605e-28 * (u_1)**0.350958 * (u_2)**6.29187 * (u_3)**10.2559\
+ 7.09757e-25 * (u_1)**1.39489 * (u_2)**1.96239 * (u_3)**0.567066\
+ 3.73076e-14 * (u_1)**-2.57406 * (u_2)**3.12793 * (u_3)**0.448159\
+ 1.44343e-12 * (u_1)**-3.91046 * (u_2)**4.66279 * (u_3)**7.68852)**(1/6.48983)\
\
RMS: 0.01140494297\
Fit type: SMA}
162 changes: 162 additions & 0 deletions gpkitmodels/fits/tail_fits/blade.t100
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,162 @@
N+3 T100
-2.000000 3.000000 -3.000000 3.000000
1.000000 0.4986928E-03
0.9916390 0.1472186E-02
0.9802755 0.2785696E-02
0.9671078 0.4282556E-02
0.9524630 0.5920843E-02
0.9368338 0.7658461E-02
0.9206892 0.9479073E-02
0.9042711 0.1137253E-01
0.8876800 0.1332395E-01
0.8709641 0.1531787E-01
0.8541653 0.1733661E-01
0.8373487 0.1935883E-01
0.8205795 0.2136310E-01
0.8038854 0.2333361E-01
0.7872714 0.2525832E-01
0.7707314 0.2712801E-01
0.7542540 0.2893553E-01
0.7378249 0.3067576E-01
0.7214305 0.3234555E-01
0.7050601 0.3394265E-01
0.6887050 0.3546549E-01
0.6723589 0.3691293E-01
0.6560168 0.3828406E-01
0.6396745 0.3957840E-01
0.6233290 0.4079567E-01
0.6069779 0.4193574E-01
0.5906190 0.4299881E-01
0.5742513 0.4398512E-01
0.5578738 0.4489498E-01
0.5414858 0.4572896E-01
0.5250875 0.4648750E-01
0.5086787 0.4717107E-01
0.4922598 0.4778035E-01
0.4758318 0.4831582E-01
0.4593952 0.4877796E-01
0.4429513 0.4916736E-01
0.4265021 0.4948430E-01
0.4100492 0.4972905E-01
0.3935949 0.4990185E-01
0.3771426 0.5000252E-01
0.3606949 0.5003080E-01
0.3442563 0.4998628E-01
0.3278316 0.4986793E-01
0.3114258 0.4967464E-01
0.2950462 0.4940480E-01
0.2787002 0.4905611E-01
0.2623971 0.4862608E-01
0.2461486 0.4811133E-01
0.2299684 0.4750793E-01
0.2138758 0.4681160E-01
0.1978963 0.4601699E-01
0.1820650 0.4511832E-01
0.1664309 0.4410888E-01
0.1510607 0.4298209E-01
0.1360474 0.4173246E-01
0.1215175 0.4035815E-01
0.1076342 0.3886056E-01
0.9456860E-01 0.3724125E-01
0.8247290E-01 0.3551112E-01
0.7146558E-01 0.3369428E-01
0.6161373E-01 0.3182826E-01
0.5292303E-01 0.2995442E-01
0.4533499E-01 0.2810506E-01
0.3874408E-01 0.2629940E-01
0.3302398E-01 0.2454449E-01
0.2804902E-01 0.2283940E-01
0.2370655E-01 0.2117879E-01
0.1990132E-01 0.1955548E-01
0.1655531E-01 0.1796235E-01
0.1360626E-01 0.1639256E-01
0.1100642E-01 0.1483828E-01
0.8720832E-02 0.1329053E-01
0.6724984E-02 0.1174065E-01
0.5002300E-02 0.1018230E-01
0.3542241E-02 0.8612393E-02
0.2339180E-02 0.7031478E-02
0.1390450E-02 0.5443731E-02
0.6938675E-03 0.3858603E-02
0.2427907E-03 0.2287233E-02
0.2634640E-04 0.7500421E-03
0.2634445E-04 -0.7500426E-03
0.2427847E-03 -0.2287234E-02
0.6938575E-03 -0.3858605E-02
0.1390434E-02 -0.5443735E-02
0.2339162E-02 -0.7031484E-02
0.3542218E-02 -0.8612403E-02
0.5002274E-02 -0.1018231E-01
0.6724953E-02 -0.1174067E-01
0.8720796E-02 -0.1329055E-01
0.1100637E-01 -0.1483831E-01
0.1360620E-01 -0.1639259E-01
0.1655525E-01 -0.1796239E-01
0.1990128E-01 -0.1955553E-01
0.2370651E-01 -0.2117886E-01
0.2804897E-01 -0.2283947E-01
0.3302392E-01 -0.2454457E-01
0.3874402E-01 -0.2629950E-01
0.4533492E-01 -0.2810518E-01
0.5292295E-01 -0.2995455E-01
0.6161365E-01 -0.3182842E-01
0.7146550E-01 -0.3369446E-01
0.8247280E-01 -0.3551133E-01
0.9456850E-01 -0.3724150E-01
0.1076341 -0.3886084E-01
0.1215174 -0.4035847E-01
0.1360473 -0.4173282E-01
0.1510605 -0.4298248E-01
0.1664308 -0.4410932E-01
0.1820649 -0.4511879E-01
0.1978961 -0.4601751E-01
0.2138756 -0.4681216E-01
0.2299683 -0.4750853E-01
0.2461484 -0.4811197E-01
0.2623969 -0.4862677E-01
0.2787001 -0.4905684E-01
0.2950461 -0.4940557E-01
0.3114257 -0.4967546E-01
0.3278314 -0.4986879E-01
0.3442562 -0.4998718E-01
0.3606948 -0.5003175E-01
0.3771424 -0.5000351E-01
0.3935948 -0.4990288E-01
0.4100490 -0.4973013E-01
0.4265020 -0.4948542E-01
0.4429512 -0.4916851E-01
0.4593950 -0.4877916E-01
0.4758316 -0.4831706E-01
0.4922597 -0.4778164E-01
0.5086786 -0.4717240E-01
0.5250873 -0.4648887E-01
0.5414856 -0.4573038E-01
0.5578737 -0.4489644E-01
0.5742512 -0.4398662E-01
0.5906189 -0.4300035E-01
0.6069778 -0.4193732E-01
0.6233289 -0.4079730E-01
0.6396744 -0.3958007E-01
0.6560167 -0.3828577E-01
0.6723588 -0.3691469E-01
0.6887049 -0.3546729E-01
0.7050600 -0.3394449E-01
0.7214304 -0.3234744E-01
0.7378248 -0.3067769E-01
0.7542539 -0.2893751E-01
0.7707313 -0.2713003E-01
0.7872713 -0.2526038E-01
0.8038854 -0.2333571E-01
0.8205795 -0.2136524E-01
0.8373486 -0.1936102E-01
0.8541653 -0.1733883E-01
0.8709641 -0.1532014E-01
0.8876800 -0.1332627E-01
0.9042711 -0.1137489E-01
0.9206891 -0.9481488E-02
0.9368338 -0.7660908E-02
0.9524630 -0.5923331E-02
0.9671078 -0.4285083E-02
0.9802755 -0.2788258E-02
0.9916390 -0.1474778E-02
1.000000 -0.5013072E-03
162 changes: 162 additions & 0 deletions gpkitmodels/fits/tail_fits/blade.t120
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,162 @@
N+3 T120
-2.000000 3.000000 -3.000000 3.000000
1.000000 0.4936511E-03
0.9916390 0.1662719E-02
0.9802755 0.3240121E-02
0.9671078 0.5037732E-02
0.9524630 0.7005211E-02
0.9368338 0.9091990E-02
0.9206892 0.1127842E-01
0.9042711 0.1355229E-01
0.8876800 0.1589572E-01
0.8709641 0.1829018E-01
0.8541653 0.2071442E-01
0.8373487 0.2314286E-01
0.8205795 0.2554974E-01
0.8038854 0.2791610E-01
0.7872714 0.3022749E-01
0.7707314 0.3247286E-01
0.7542540 0.3464361E-01
0.7378249 0.3673360E-01
0.7214305 0.3873907E-01
0.7050601 0.4065730E-01
0.6887050 0.4248642E-01
0.6723589 0.4422507E-01
0.6560168 0.4587213E-01
0.6396745 0.4742705E-01
0.6233290 0.4888949E-01
0.6069779 0.5025928E-01
0.5906190 0.5153668E-01
0.5742513 0.5272197E-01
0.5578738 0.5381552E-01
0.5414858 0.5481801E-01
0.5250875 0.5572998E-01
0.5086787 0.5655198E-01
0.4922598 0.5728484E-01
0.4758318 0.5792912E-01
0.4593952 0.5848541E-01
0.4429513 0.5895441E-01
0.4265021 0.5933647E-01
0.4100492 0.5963190E-01
0.3935949 0.5984098E-01
0.3771426 0.5996351E-01
0.3606949 0.5999917E-01
0.3442563 0.5994746E-01
0.3278316 0.5980717E-01
0.3114258 0.5957694E-01
0.2950462 0.5925484E-01
0.2787002 0.5883813E-01
0.2623971 0.5832380E-01
0.2461486 0.5770780E-01
0.2299684 0.5698542E-01
0.2138758 0.5615151E-01
0.1978963 0.5519965E-01
0.1820650 0.5412290E-01
0.1664309 0.5291322E-01
0.1510607 0.5156268E-01
0.1360474 0.5006470E-01
0.1215175 0.4841705E-01
0.1076342 0.4662139E-01
0.9456861E-01 0.4467959E-01
0.8247291E-01 0.4260470E-01
0.7146559E-01 0.4042564E-01
0.6161374E-01 0.3818745E-01
0.5292304E-01 0.3593975E-01
0.4533500E-01 0.3372133E-01
0.3874409E-01 0.3155521E-01
0.3302399E-01 0.2944992E-01
0.2804903E-01 0.2740434E-01
0.2370656E-01 0.2541207E-01
0.1990133E-01 0.2346449E-01
0.1655531E-01 0.2155308E-01
0.1360626E-01 0.1966964E-01
0.1100642E-01 0.1780478E-01
0.8720835E-02 0.1594772E-01
0.6724987E-02 0.1408808E-01
0.5002303E-02 0.1221823E-01
0.3542243E-02 0.1033450E-01
0.2339182E-02 0.8437528E-02
0.1390451E-02 0.6532331E-02
0.6938685E-03 0.4630251E-02
0.2427913E-03 0.2744654E-02
0.2634660E-04 0.9000480E-03
0.2634425E-04 -0.9000481E-03
0.2427841E-03 -0.2744655E-02
0.6938565E-03 -0.4630253E-02
0.1390433E-02 -0.6532335E-02
0.2339160E-02 -0.8437534E-02
0.3542216E-02 -0.1033451E-01
0.5002271E-02 -0.1221825E-01
0.6724950E-02 -0.1408810E-01
0.8720793E-02 -0.1594774E-01
0.1100637E-01 -0.1780481E-01
0.1360620E-01 -0.1966967E-01
0.1655525E-01 -0.2155312E-01
0.1990127E-01 -0.2346454E-01
0.2370650E-01 -0.2541213E-01
0.2804896E-01 -0.2740441E-01
0.3302391E-01 -0.2945001E-01
0.3874401E-01 -0.3155532E-01
0.4533491E-01 -0.3372144E-01
0.5292294E-01 -0.3593989E-01
0.6161364E-01 -0.3818761E-01
0.7146549E-01 -0.4042583E-01
0.8247279E-01 -0.4260491E-01
0.9456849E-01 -0.4467984E-01
0.1076341 -0.4662167E-01
0.1215174 -0.4841737E-01
0.1360473 -0.5006505E-01
0.1510605 -0.5156307E-01
0.1664308 -0.5291366E-01
0.1820649 -0.5412338E-01
0.1978961 -0.5520017E-01
0.2138756 -0.5615207E-01
0.2299683 -0.5698602E-01
0.2461484 -0.5770844E-01
0.2623969 -0.5832449E-01
0.2787001 -0.5883886E-01
0.2950461 -0.5925561E-01
0.3114257 -0.5957775E-01
0.3278314 -0.5980802E-01
0.3442562 -0.5994836E-01
0.3606948 -0.6000011E-01
0.3771424 -0.5996449E-01
0.3935948 -0.5984201E-01
0.4100490 -0.5963297E-01
0.4265020 -0.5933759E-01
0.4429512 -0.5895557E-01
0.4593950 -0.5848661E-01
0.4758316 -0.5793037E-01
0.4922597 -0.5728613E-01
0.5086786 -0.5655331E-01
0.5250873 -0.5573135E-01
0.5414856 -0.5481943E-01
0.5578737 -0.5381698E-01
0.5742512 -0.5272347E-01
0.5906189 -0.5153822E-01
0.6069778 -0.5026087E-01
0.6233289 -0.4889112E-01
0.6396744 -0.4742872E-01
0.6560167 -0.4587384E-01
0.6723588 -0.4422682E-01
0.6887049 -0.4248822E-01
0.7050600 -0.4065915E-01
0.7214304 -0.3874096E-01
0.7378248 -0.3673553E-01
0.7542539 -0.3464558E-01
0.7707313 -0.3247487E-01
0.7872713 -0.3022955E-01
0.8038854 -0.2791820E-01
0.8205795 -0.2555188E-01
0.8373486 -0.2314505E-01
0.8541653 -0.2071666E-01
0.8709641 -0.1829246E-01
0.8876800 -0.1589805E-01
0.9042711 -0.1355465E-01
0.9206891 -0.1128083E-01
0.9368338 -0.9094439E-02
0.9524630 -0.7007700E-02
0.9671078 -0.5040260E-02
0.9802755 -0.3242684E-02
0.9916390 -0.1665311E-02
1.000000 -0.4962650E-03
Loading