Downloads

Latest Releases

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

	Standard Edition v.2.x	Standard Edition v.1.x	Lite Edition
	MS Windows (x86), Installer Includes redistributable runtime libraries for MS VC++
	rpa-2.0.6-standard-demo-win32-r.exe 15.8 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win32-r.exe 14.2 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-2.0.6-standard-demo-win64-r.exe 17.0 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win64-r.exe 15.4 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-2.0.6-standard-demo-win32.exe 11.0 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win32.exe 9.3 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-2.0.6-standard-demo-win64.exe 11.5 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win64.exe 9.9 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-2.0.6-standard-demo-win32.zip 13.0 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win32.zip 11.0 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-2.0.6-standard-demo-win64.zip 13.9 MB 15-day free trial with limited functionality	rpa-1.2.8-standard-win64.zip 11.8 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-2.0.6-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-2.0.6-standard-demo-qt.pkg 25.3 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-2.0.6-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-2.0.6-standard-demo-x86-64-r.tar.gz 15.2 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-2.0.6-standard-demo-x86-64.tar.gz 8.3 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-2.0.6-standard-demo-i386-r.tar.gz 15.3 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-2.0.6-standard-demo-i386.tar.gz 8.2 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.2.0 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.2.0.6

• Mistake is fixed in estimation of chamber performance with flow separation in the nozzle.
• Mistake is fixed in calculation of parameters at chamber stations located in convergent section of the nozzle.

RPA Standard/Lite Editions v.1.2.8

• Mistake is fixed in estimation of chamber performance with flow separation in the nozzle.

RPA Standard Edition v.2.0.5

• Mistake is fixed in function for saving/copying-into-clipboard the products of reaction.

RPA Standard Edition v.2.0.4

• Mistake is fixed in thermal analysis module that caused an error when calculating the chambers with two or more cooling film belts with overlapping liquid layers.
• Improved validation of input parameters for regenerative and film cooling.

RPA Standard Edition v.2.0.3

• Mistake is fixed in Thermodynamic Database Editor that was preventing the saving of user-defined species.
• Improved support of editing and handling of user-defined species in Thermodynamic Database Editor.
• Improved performance on multi-core computers due to the usage of parallel algorithms in Chamber Geometry and Thermal Analysis modules.
• C++ library Eigen is used as a standard solver of system of linear equations.
• RPA for Windows is built with MS VC++ 2010 and Qt 4.8.3.

RPA Standard Edition v.1.2.7

• Mistake is fixed in Thermodynamic Database Editor that was preventing the saving of user-defined species.
• Improved support of editing and handling of user-defined species in Thermodynamic Database Editor.
• Improved performance on multi-core computers due to the usage of parallel algorithms in Chamber Geometry module.
• C++ library Eigen is used as a standard solver of system of linear equations.
• RPA for Windows is built with MS VC++ 2010 and Qt 4.8.3.

RPA Lite Edition v.1.2.7

• Mistake is fixed in Thermodynamic Database Editor that was preventing the saving of user-defined species.
• Improved support of editing and handling of user-defined species in Thermodynamic Database Editor.
• C++ library Eigen is used as a standard solver of system of linear equations.
• RPA for Windows is built with MS VC++ 2010 and Qt 4.8.3.

RPA Standard Edition v.2.0.2

• Improved algorithm of calculating of nozzle friction loss (moduleThermal Analysis).
• Improved algorithm of calculating of nozzle divergence loss for the TIC nozzle.
• Improved algorithm of designing the TIC nozzle with large Ae/At ratio.

RPA Standard Edition v.1.2.6.5

• Improved algorithm of calculating of nozzle divergence loss for the TIC nozzle.
• Improved algorithm of designing the TIC nozzle with large Ae/At ratio.

RPA Standard Edition v.2.0.1

• Added possibility to calculate the heat flux at fixed wall temperature.
• Table with results contains two additional columns: "Convective heat flux" and "Radiation heat flux".
• Heat flux diagram contains two addition curves: "Convective heat flux" and "Radiation heat flux".
• Mistake is fixed in calculation of effective emissivity that was leading to too high radiation heat flux in small thrust chambers.

RPA Standard Edition v.2.0.0.2

• Updated format of properties file: specific heat is given in kJ/kg-K instead of kJ/mol-K.
• Updated thermodynamic database editor to support new format of properties file.
• Fixed mistake that caused the program crash when running Nested Analysis for the project with configured thermal analysis.

RPA Standard Edition v.2.0.0.1

• fixed mistake that under specific circumstances could cause a program to hang while calculating the engine altitude performance.
• fixed mistake that caused the program crash when loading old project configuration file (v.1.x) and trying to switch to thermal analysis screen (demo version only is affected).

RPA Standard Edition v.2.0.0

• Calculation of heat transfer rate distribution (convection and radiation) with or without boundary layer coolant
• Film cooling analysis
• Radiation cooling analysis
• Regenerative cooling analysis:
  • coaxial shell jacket
  • tubular wall jacket
  • jacket with milled channels
• Thermal analysis of thrust chambers with combined cooling (radiation + film + regenerative)
• Estimation of hydraulic loss in the cooling passages
• Estimation of friction thrust loss
• Estimation of divergence thrust loss for nozzle with truncated ideal nozzle contour (TIC)

RPA Standard Edition v.1.2.6.4

• fixed mistake in scripting utility rpas that caused program crash due to memory leak
• distribution packages include Qt v.4.8.0
• added two options into command line utility rpac:
  • -pr, or --performance prints out the performance tables at the end of standard output
  • -pt N, or --points N defines the number of lines N in altitude performance table; only effective together with the option -pr

RPA Standard Edition v.1.2.6.3 & RPA Lite Edition v.1.2.5.2

• fixed mistake in definition of nozzle exit condition in throttled performance analysis
• fixed mistake in calculation of thrust in throttled performance analysis
• improved thrust level discretization in throttled performance analysis
• improved pressure discretization in altitude performance analysis

RPA v.1.2.6.2

Standard Edition

• improved algorithm for calculation of sonic velocity at nozzle throat section for reaction products with condensed phase
• added user manual in PDF format

RPA v.1.2.6.1

Standard Edition

• mistake that makes impossible the modifying the fuel mass fraction on screen "Propellant Specification" is fixed

RPA v.1.2.6

Standard Edition

• calculation of additional nozzle stations
• calculated thrust is added to altitude performance table
• calculated thrust (at SL, opt and vac conditions) is added to throttled performance table
• in both Nested Analysis and Propellant Analysis tools, any of calculated parameters (Is, Tc, c*, Cf) can be plotted on diagram "parameter vs. O/F ratio"
• improved calculation of estimated delivered performance

See complete change log.

Last modified: March 30, 2013