Rocket Propulsion Analysis
Home Licensing Downloads Blog Contact

Downloads

Latest Releases

Registered users please use the download link provided in registration e-mail.

At the moment RPA SE v.2.1.x is available only for Microsoft® Windows™ and Linux operating systems. Build for Apple® Mac OS X will be available soon.

Standard Edition v.2.x Standard Edition v.1.x Lite Edition
MS Windows (x86), Installer
Includes redistributable runtime libraries for MS VC++
rpa-2.2.1-standard-demo-win32-r.exe
16.3 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win32-r.exe
15.8 MB
15-day free trial
rpa-1.2.8-lite-win32-r.exe
13.5 MB
free
MS Windows (x86-64), Installer
Includes redistributable runtime libraries for MS VC++
rpa-2.2.1-standard-demo-win64-r.exe
17.6 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win64-r.exe
17.0 MB
15-day free trial
rpa-1.2.8-lite-win64-r.exe
14.7 MB
free
MS Windows (x86), Installer
Does not include redistributable runtime libraries for MS VC++
rpa-2.2.1-standard-demo-win32.exe
11.5 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win32.exe
10.9 MB
15-day free trial
rpa-1.2.8-lite-win32.exe
8.6 MB
free
MS Windows (x86-64), Installer
Does not include redistributable runtime libraries for MS VC++
rpa-2.2.1-standard-demo-win64.exe
12.1 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win64.exe
11.5 MB
15-day free trial
rpa-1.2.8-lite-win64.exe
9.2 MB
free
MS Windows (x86), ZIP
Does not include redistributable runtime libraries for MS VC+.
Does not require administrator rights and installation.
rpa-2.2.1-standard-demo-win32.zip
13.6 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win32.zip
12.7 MB
15-day free trial
rpa-1.2.8-lite-win32.zip
10.0 MB
free
MS Windows (x86-64), ZIP
Does not include redistributable runtime libraries for MS VC+.
Does not require administrator rights and installation.
rpa-2.2.1-standard-demo-win64.zip
14.5 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-win64.zip
13.5 MB
15-day free trial
rpa-1.2.8-lite-win64.zip
10.8 MB
free
Mac OS X 10.5 or higher (Intel x86 or x86-64), Installer
Does not include redistributable libraries for Qt.
rpa-2.0.7-standard-demo.pkg
11.7 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard.pkg
9.3 MB
15-day free trial
rpa-1.2.8-lite.pkg
8.2 MB
free
Mac OS X 10.5 or higher (Intel x86 or x86-64), Installer
Includes redistributable libraries for Qt
rpa-2.0.7-standard-demo-qt.pkg
25.4 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-qt.pkg
23.0 MB
15-day free trial
rpa-1.2.8-lite-qt.pkg
20.0 MB
free
Mac OS X 10.5 or higher (Intel x86 or x86-64), Bundle, ZIP
Includes redistributable libraries for Qt
rpa-2.0.7-standard-demo-qt-bundle.zip
26.1 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-qt-bundle.zip
23.7 MB
15-day free trial
rpa-1.2.8-lite-qt-bundle.zip
20.7 MB
free
Linux x86-64. tar.gz
Includes redistributable libraries.
rpa-2.2.0-standard-demo-x86-64-r.tar.gz
21.8 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-x86-64-r.tar.gz
13.1 MB
15-day free trial
rpa-1.2.8-lite-x86-64-r.tar.gz
11.6 MB
free
Linux x86-64. tar.gz
Does not include redistributable libraries.
rpa-2.2.0-standard-demo-x86-64.tar.gz
14.9 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-x86-64.tar.gz
6.2 MB
15-day free trial
rpa-1.2.8-lite-x86-64.tar.gz
5.7 MB
free
Linux x86. tar.gz
Includes redistributable libraries.
rpa-2.2.0-standard-demo-i386-r.tar.gz
21.9 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-i386-r.tar.gz
13.2 MB
15-day free trial
rpa-1.2.8-lite-i386-r.tar.gz
11.7 MB
free
Linux x86. tar.gz
Does not include redistributable libraries.
rpa-2.2.0-standard-demo-i386.tar.gz
14.9 MB
15-day free trial
with limited functionality
rpa-1.2.8-standard-i386.tar.gz
6.1 MB
15-day free trial
rpa-1.2.8-lite-i386.tar.gz
5.7 MB
free

Functional limitations

Trial version of RPA Standard Edition v.2.x has the following functional limitations in thermal analysis module:

  • fixed number of stations distributed along the thrust chamber is equal to 30
  • maximum number of cooling sections is limited to 3

After you complete the payment, you will receive notification with your personalized product key and the link to the password-protected page where you can download the fully functional version of RPA without any limitations.

Installation instructions

See User Manual: Installation.

Note: RPA for Windows depends on MS VC++ 2010 runtime libraries. If your computer does not have it installed, please choose the installer that includes all required components, or download and install redistributable runtime components from Microsoft download center: for x86 (download size 4.8 MB); for x64 (download size 5.5 MB).

Note: in order to install RPA for Windows from installation executable file you must have administrator rights. If you don't have administrative rights, you can still install the program from ZIP package.

Change Log

RPA Standard Edition v.2.2.1

This is a bugfix release for MS Windows only. Version for Linux is not affected and does not require an update.

  • Fixed issues:
    • Thermal analysis: program crashes when performing analysis of thrust chambers with "coaxial-shells" cooling jackets.

RPA Standard Edition v.2.2.0

  • Thermal analysis: new option to analize the chamber cooling at specific throttle level of the thrust chamber
  • Thermal analysis: new option to design the cross-section geometry of regeneratively cooling jackets
  • Thermal analysis: improved definition of the cross-section geometry of regeneratively cooling jackets
  • Thermal analysis: cross-section geometry of regeneratively cooling jackets is printed out into the analysis log
  • Nested analysis and Propellant analysis: new column for propellant density in the table with results (only for propellant components with density available in properties file)
  • Performance analysis: propellant density is printed out into the analysis log (only for propellant components with density available in properties file)
  • Fixed issues:
    • Thermal analysis: improved analysis of nozzles with large Ae/At ratio using Ievlev approach

RPA Standard Edition v.2.1.5

  • Cycle analysis: estimation of Isp (SL) as well as engine thrust and thrust-to-weight ratio is supported
  • Fixed issues:
    • Throttled performance with small throttle value ranges is supported
    • Nested and Propellant analyses: improved Isp estimation for off-optimal component ratios
    • Cycle analysis: improved validation of input parameters

RPA Standard Edition v.2.1.4

  • New examples included into distribution package
  • Updated User_Manual included into distribution package
  • Additional problem types are available in Scripting Utility and RPA Wrapper: VT=const, VU=const, and VS=const
  • Modified Scripting Utility API (see User_Manual for more information):
    • Removed functions:
      • Reaction.setP(Number p, String p_unit);
      • Reaction.setT(Number T, String T_unit);
      • Reaction.setH(Number H, String H_unit);
      • Reaction.setS(Number S, String S_unit);
    • Added functions:
      • Reaction.setPT(Number p, String p_unit, Number T, String T_unit);
      • Reaction.setPH(Number p, String p_unit, Number H, String H_unit);
      • Reaction.setPS(Number p, String p_unit, Number S, String S_unit);
      • Reaction.setVT(Number v, String v_unit, Number T, String T_unit);
      • Reaction.setVU(Number v, String v_unit, Number U, String U_unit);
      • Reaction.setVS(Number v, String v_unit, Number S, String S_unit);
      • Reaction.getU(String U_unit);
      Provided examples have been updated correspondingly.
  • Modified RPA Wrapper API:
    • Removed functions:
      • void equilibriumSetP(void* equilibriumPtr, double p, const char* p_units);
      • void equilibriumSetT(void* equilibriumPtr, double T, const char* T_units);
      • void equilibriumSetH(void* equilibriumPtr, double H, const char* H_units);
      • void equilibriumSetS(void* equilibriumPtr, double S, const char* S_units);
    • Added functions:
      • void equilibriumSetPT(void* equilibriumPtr, double p, const char* pressureUnits, double T, const char* temperatureUnits);
      • void equilibriumSetPH(void* equilibriumPtr, double p, const char* pressureUnits, double H, const char* enthalpyUnits);
      • void equilibriumSetPS(void* equilibriumPtr, double p, const char* pressureUnits, double S, const char* entropyUnits);
      • void equilibriumSetVT(void* equilibriumPtr, double v, const char* volumeUnits, double T, const char* temperatureUnits);
      • void equilibriumSetVS(void* equilibriumPtr, double v, const char* volumeUnits, double S, const char* entropyUnits);
      • void equilibriumSetVU(void* equilibriumPtr, double v, const char* volumeUnits, double U, const char* energyUnits);
      • double equilibriumGetU(void* equilibriumPtr, const char* energyUnits);
      Provided examples have been updated correspondingly.
  • Fixed issues:
    • Thermodynamic database editor: fixed issue while saving the user database
    • Cycle Analysis module: improved convergence of solution for staged-combustion cycles
    • Cycle Analysis module: improved convergence of solution for cycles with booster pumps

RPA Standard Edition v.2.1.3

  • Chamber Geometry module: added option to design the nozzle with truncated ideal contour (TIC) which produces max thrust at fixed length
  • Chamber Geometry module: improved model for obtaining efficiency of truncated ideal contour (TIC)
  • Chamber Geometry module: when using nozzle with truncated ideal contour (TIC), chamber performance, propellant mass flow rate and chamber geometry may be obtained using nozzle efficiency calculated for TIC; as result, the numbers may differ from that obtained in Performance Analysis module
  • Thermal Analysis module: improved model of film cooling
  • Thermal Analysis module: added option to specify the relative thickness of the wall layer
  • Updated properties of CH4(L) which makes it possible to use this component as a coolant in Thermal Analysis and propellant component in Cycle Analysis.
  • Nested Analysis and Propellant Analysis: added columns "M" (molecular weight), "gamma" (ratio of specific heats) and "k" (isentropic exponent)
  • Fixed issues:
    • Thermal Analysis module obtains correct value of heat transfer coefficient for chambers with Ac/At > Ae/At

RPA Standard Edition v.2.1.2

  • Fixed issues:
    • Improved convergence of solution for metalized solid propellants

RPA Standard Edition v.2.1.1

  • Updated user manual includes the chapter for the Cycle Analysis.
  • Fixed issues:
    • Build of RPA for Windows could not solve some cycle analysis problems for staged combustion cycle with a high chamber pressure (for instance, example problem RD-170.cfg available in distribution package)

RPA Standard Edition v.2.1.0

  • Added cycle analysis tool to estimate operational parameters of following engine cycles:
    • Staged Combustion cycle (SG)
    • Full Flow Staged Combustion cycle (FFSG)
    • Gas Generator cycle (GG)
  • Added estimation of engine performance for Gas Generator cycle.
  • Added estimation of engine dry weigth.
  • Fixed issues:
    • When ambiguous design parameters are specified, Chamber Geometry module obtains correct geometry of combustion chamber automatically adjusting parameters L* or L'
    • Thermal Analysis module obtains correct value of radiation heat transfer coefficient for chambers with ambiguous design parameters
    • Thermal Analysis module works properly with several regenerative cooling sections
    • Thermal Analysis module obtains correct parameters (density, thermal conductivity and viscosity) of coolant which consists of several individual components
    • Improved stability of Thermal Analysis module

See change log for older releases.

Copyright © 2009-2014 Alexander Ponomarenko  |  Contact  |  Visitors Map
Last modified: July 24, 2014