NASA Technical Reports Server (NTRS) 19930017773: Rocket engine numerical simulator

8 Pages·0.4 MB·English

by  NASA Technical Reports Server (NTRS)

N93-269_+
ROCKET ENGINE |
NUMERICAL, SIMULATOR
OVERVIEW PRESENTATION
presented by
Ken Davidian
Space Vehicle Propulsion Branch
Space Propulsion Technology Division
October 22, 1992
,,
NUMERICAL '+SIMULATOR
CONTENTS
,- .- L
•RENS Definition • Potential Users
• RENS Work Flowchart
• Objectives
ProtQ_Pe +
•Justification + +++i_,:+o;_ENS
+_++L;.'_+J..:_...._....... - +•,+'+.+_++_':_"+:+:.-
Approach +:++.C++o:nclusions %+, ++++,++
• " ".r +-' .
• Potential Applicatio ns +..'_.."'.._.
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NTP: Symtems Modelina 732 NP-TIM-92
ORIGINAL PAQE IS
OF' POOR QLIALITY
ROCKET ENGINE
NUMERIC AE_S IMUL AT OR
• Rocket Engine Numerical Simulator(RENS)
Performs Liquid Rocket Engine Propulsion
System Analyses and Design '
• RENS Gives Engine_e'_ _ 3_D TransientlT061_ for
Analyzing Engine Systems (Tanks - :Feed System
-Thrust Chamber)i_i_: i_-: ?_: _ .... ,_ _ _ _:, i
;',, __.i:_:_:_;!i_'_'i::;i'::' i_::! _ .... :i __?: '_\_'!__i:'i_"_
• RENS:IWilt SurpaSs/Encompass capabiiifies of
CurrentSysteln Codes (ROi:ETS:_ 'Ge_ric ....
Power Balance).,
r,,:
ROC ..I..I .... E
NUMERIC AE_S IMUL AT O R
RENS DEFINITION
• RENS is Long,Termland:EargeScope
• RENS Features: Include: __. _."... .....
- System Executive - Easy to Use
- Data Management Indus try/University/
Gov't AdvisOry Group
- Graphical User
Interface
• EVoluhon of ......
- Incorporation of
Users' Technical Codes Capabilities
NP-TIM-92 733 HTP: Syitex_ Mode_ng
ORIGINAL PAOE ¢S
OF POOR QUALITY
ROCKEI _"E• NG 1N E
NUMERICAL SIMULAT O R
OBJECTIVES
• Enable spontaneous and adaptive rocket
definition, generation_ performance evaluation,
and failure analysis. _
• Develop capability to simulate component:and
system level performance of rocket propulsion
systems. _
• Provide rapid and accurate assessment of rocket
to increasedesign efficiency.
• Incorporate and integrate validated __'_
computational simulation codes/technologies.
ROCKET ENGINE
NUMERICALSIMUL_TOR
I
jUSTIFiCATION _....
• Following capabilities required by NASA_t 0 do
our job: independent verificationof proposed
rocket performance, new.rocket designs_._asseas
impact of new rocket technologies_ _:__ _.,_y__.,
• Standardized industry design/analysi.s't0_l i .
(indust ry-univers._t y__-gove_rri.m...e..n..t." p a..r..ticlpahon)•.
• Streamline, enhance, and alter research &
analysis process to reduce time and cost.
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NTP: Systems ModP.Wnq 734 (_P-T_-92
ROCKET ENGINE
NUMERIC AL SIMUL ATO R
I , I IIII I
APPROACH
°The RENS program will be patterned after, and
will leverage from, the Numerical Propulsion
System Simulator (NPSS), currently under
development at NASA LeRC for aircraft
propulsion systems. _ :_
• RENS will incorporate component level _':
descriptions to predict performance and
reliability. : ......
ROCKET ENGINE
NUMER_C_L_S1MUE_TOR
I Ill I
POTENTIAL APPLICATIONS
• Chemical Propulsion Systems .......
• Nuclear Thermal Propulsion Systems
• Propulsion System Test Facilities
• Nuclear Electric PropUlsion Systems :,:.
• Space Power SYStems :" :_,::':_. _ :-
, . : iI _ : , ..... :, _!__ •
NP-TIM-92 735 NTP: SystemsModerns
uRiOCKE i 1 iiENiiGi N
NUMER_I__EATOR
I II
....POT ...... ...._......_.. ...... • _:_!_
• L
-\ ",Pratt & Whitney
:i !! _ .. 9
[ I I Ilia il
RENS WOR.KiSTRUC_UREii ,_
• _< . .
i.,,.
codes tech tools codes/tools
Define Develop Integrate
sys exec sys exec sys exec
RENS RENS
testing release
Develop Integrate
I dDaetfainemgt data mst data mgt
Define Develop Integrate
GUI GU! GUI
ii i li i i
Icrp: Sy_ten_ Modeling 736
OF' PO0_ QUi,LI']'Y
ROCKET ENGINE
NUMERICAL SIMULATOR
I Ill
RENS PROTOTYPE - REDES
• Prototype Capability Initiated in 1989 with
Rocket Engine Design Expert System (REDES).
• REDES Used to Conduct Various Studies and
Model Various Engines:
- Nozzle Performance Parametrics (SSME, RL10)
- Nozzle Design (NTR)
- Rocket Engine Test Facility Capabilityl
Assessment (NASA LeRC Rocket Engine Test
Facility Ejectors) •
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ROCKET ENGINE
NUME RI C AL SIMULAT O R
II I I " i I
REDES ANALYTICAL DOMAIN
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NP-TIM-92 737 S_: sy._. Moh_ll.s
C-3
NUMER[_K_EiiNI_E_TOR
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NUME RI C_E iS; IMUL ATO R
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738 t_,.rea.92
N'rp: Sys_ms Mod_lin I
ORIG|NA, L PAeE IS
OF POOR QUALITY
ROCKET ENGINE
NUMERICAL SIMULATOR
RENS USER SURVEY (part I of 2)
Q: How Would You Use RENS?
Q: What Would You Add To the Current RENS
Description? What Would You Delete?
Q: What Do You Like About the Current RENS
Description? What D ° You Dislike?
Q: What Would Bethe Impact of Using RENS On
Your Organization? Technology Benefit? Cost
Benefit?
ROCKET,ENGINE
NUMERICAE!*.ISIMULATOR
I ( I|
RENS USER SURVEY (part2 Of 2)
Q: Would You Beinterested InDevelopi_ngSome
Portion of _l'll__-l"i.t_. Ta_ql _ qlwlr&nTllataxor"1u'1on_ao till
Q: How WoUld You JUsti_i Expending Resources
In the Useo_RENS_to:YourManagement?
Presentations toNKS_Headquarters? :_:_i_!
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NP-TIM-92 739 •NTP: Sys_ Modelin6g
O.r'.t_NA,L PAGE IS
OF POOR QUALITY