The main updates of this version, in comparison with the previous release 3.8.1, are:
GENERAL
- Added alkali metals to the database (Li Na Rb Cs) and improved potassium properties (K)
- Added new functions to obtain Molecular weight of a mixture of real gases
- Updated sound velocity and transport properties for mixture of real gases.
FLUID_FLOW_1D Library
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Improvements in the “Tee” component
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Added new ValveLeak component based on Valve which includes leakage loss when closed
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Added heat pipe component.
TURBO_MACHINERY Library
- New feature added to Pump_gen to calculate pump performance using empirical or user-defined relations.
- New feature added to Pump_gen to calculate mass flow leak estimation at impeller.
- New components Pump_genNbleed, Compressor_genNbleed and Turbine_genNbleed created to model pump, compressor and turbines with multiple stages and bleeding capacity.
- Added StirlingEngine component
STEADY Library
- Harmonization of the design mode in the components of the library.
- Added components for mass estimation of pressure fed systems
COMB_CHAMBERS Library
- CokingFlag converted from construction parameter to standard data so it can be changed during the simulation.
- Fixed performance in Film Cooling, adding numerical protection and improving iteration
- Fixed performance in Arrhenius, improved jacobian sparsity
- Added mass flow initialization parameters in several combustion chamber components
- Added coking to every CC cooling jacket
- Added nozzle with variable area
EP Library
- New components that model PEM (proton-exchange membrane) as electrolyser and fuel cell for RFCS (Regenerative Fuel Cell Systems) and WEP (Water Electric Propulsion)
- New component HET to model Hall Effect Thruster (HET) engines
- New component that models a magnetoplasmadynamic (MPD) thruster
NUCLEAR library
- New library containing functionalities to simulate space nuclear propulsion systems
