Steadystate modeling of gas turbine engines using the. Lytle national aeronautics and space administration glenn research center cleveland, ohio 445 summary advances in computational technology and in physicsbased modeling are making largescale, detailed simulations of complex systems possible within the design environment. The main components of the npss models include a compressor, turbine, hightemperature recuperative heat exchanger htr, cooler, heater, pipes, and valves. This paper describes the development of the numerical propulsion system simulation npss, a modular and extensible framework for the integration of multicomponent and multidisciplinary analysis tools using geographically distributed resources such as computing platforms, data bases, and people. Npss numerical propulsion system simulator acronymattic. This paper describes the development of the numerical propulsion system simulation npss, a modular and. Numerical modeling and simulation of supersonic flows in propulsion systems by opensource solvers jimmyjohn o. The outer air was used due to the transient nature of the electromagnetic wave applied. Squematic figure of the auv hull and geometric parameters of myring equations.
Numerical propulsion system simulation southwest research institute. Coordinates of the injectors are saved to a dat file to be modeled in a cad program as well. Model definition is primarily performed through input files and simulations are typically launched via a system command window figure 2. Numerical propulsion system simulation how is numerical. System simulation npss is one such tool with the ability of performing. Jun 21, 2018 modular aeropropulsion system simulations mapss, cmapss, cmapss40k. Numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration and seamless integration of system models. The system is closed by two or threeparameter numerical simulation of highspeed separation flow in the aerospace propulsion systems e. Numerical analysis of a waterjet propulsion system 3 5. Pergamon press plc numerical propulsion system simulation r. To address these issues, we have developed onyx, a javabased objectoriented application framework for aerospace propulsion system simulation. European space propulsion system simulation espss is an european space agency esa toolkit for modelling rocket and satellite propulsion systems. A new integrated development environment ide is under development to facilitate. Pdf a simulation toolbox has been developed for the creation of both steadystate and dynamic.
Nichols nasa lewis research center, interdisciplinary technology office, cleveland, oh 445, u. Npss single academic license agreement, numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration and seamless integration of system models. Pdf integrated control modeling for propulsion systems using. Notice is hereby given that, on march 4, 2020, pursuant to section 6a of the national cooperative research and production act of 1993, 15 u. The npss configuration management cm file manager integrated with the common desktop environment cde window management system provides a common look and feel for the configuration management of data, applications, and engine simulations for u. The advantage of pumpjet over other propulsion systems can be defined by two factors including high efficiency and very low acoustic effects. An objectoriented framework for distributed computational. Numerical propulsion system simulations npss for space. The numerical propulsion system simulation ntrs nasa. The numerical propulsion system simulation npss code was created. Notice is hereby given that, on september 11, 2019, pursuant to section 6a of the national cooperative research and production act of 1993, 15 u. Application of a controller to the simulation model improves the model response and system interaction in transient conditions blanke et al. Pdf the numerical propulsion system simulation npss, an advanced. This breakthrough has enabled the detailed simulation of major propulsion system components to become a routine part of designing systems, providing the designer with critical information about the components early in the design process.
File system resources file system name storage assigned gib fraction of usage2 % home 47. For verified definitions visit all trademarksservice marks referenced on this site are properties of their respective owners. Mar 15, 2017 nowadays surface and underwater vessels with modern propulsion systems and proper hydroacoustic performance have been emerged. This will provide the product developer with a virtual wind tunnel that will. Modular aeropropulsion system simulations mapss, cmapss. Tool for the integrated dynamic numerical propulsion system simulation npssturbine engine closedloop transient analysis ttectra. Npss single evaluation 45 days license agreement, numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration and seamless integration of system models. These detailed transient models are written using npss numerical propulsion system simulation. An introduction to thermodynamic performance analysis of. Taking into consideration the dynamic conditions imposed to the propulsion system by the sea environment, a control system is needed for the appropriate management of the propulsion system. What is numerical propulsion system simulation npss. Numerical propulsion system simulation southwest research institute, mechanical engineering division machinery department 6 this is a very basic example of the overall problem setup and solution control. The propulsion system behaviour is a key aspect for the overall dynamics of a ship.
Eai is the official distributor after prior approval from esa and the primary developer of the libraries. Received 21 may 1991 atraetthe cost of implementing new technology. Physical and numerical modeling for advanced propulsion systems 3 ep. Numerical plasma simulation on advanced space propulsion systems. For the present study, the flight optimization system flops, a legacy aircraft synthesis software developed by nasa 14, the numerical propulsion system simulation npss providing engine cycle. Numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration. The integral team has been working for two years to support glenns numerical propulsion system simulation npss, an effort that has received nasas prestigious turning. Npss is a concerted effort by nasa glenn research center, the aerospace industry, and academia to develop an advanced engineering environment or integrated collection of software programs for the analysis and design of aircraft engines and, eventually, space transportation components. The rocket propulsion system design coordinates are saved to a dat file which can be used in a cad program to plot a 3d model of the rocket propulsion system. The physical domain and the numerical mesh the dimensions of the fluid domain were obtained after various computational tests until to reach an optimal figure 1. There are many more options available for controlling the simulation and the solver can handle many independentdependent. The numerical simulation of kcs selfpropulsion test was developed in three steps. Advances in computational technology and in physicsbased modeling are making largescale, detailed simulations of complex systems possible within the.
Configuration management file manager developed for numerical. Marine propulsion simulation download ebook pdf, epub. A tool for efficient optimization of gas turbine engine. Weighted average of three resource types computing, file system, and.
A typical simulation contains the following types of files. A thermodynamic sensitivity and performance analysis was performed on the high pressure regenerative turbine engine hprte and its combined cycle variation, the hprte with a vapor absorption refrigeration system vars. Numerical propulsion system simulation consortium npss tm user guide software release. The modular aeropropulsion system simulation mapss is a flexible turbofan engine simulation environment that provides easy access to health, control, and engine parameters through a. The development of electronics and electrotechnology enabled to put electric motors of the alternating current in the pod and to use them for the main drive of ships. Introduction to numerical propulsion system simulation npss. Tool for the integrated dynamic numerical propulsion system simulation npssturbine engine closedloop transient analysis ttectra users guide chin, jeffrey c. In vehicle drivelines, for example, these include beams, bushings, bearings, point masses and the like.
Numerical simulation of the selfpropulsion model tests. In order to investigate the dynamic characteristic of the spacecraft propulsion system, numerical simulation was carried out based on the modular and extensible simulation model upssim. Npss is an objectoriented, multiphysics, engineering design, and simulation environment that enable the development, collaboration, and seamless integration of system models. The nasa glenn research center is developing an advanced multidisciplinary analysis environment for aerospace propulsion systems called the numerical propulsion system simulation npss. The numerical propulsion system simulation npss code was created through a joint united states industry and national aeronautics and space administration nasa effort to develop a stateoftheart aircraft engine cycle analysis simulation tool.
The objective of the numerical propulsion system simulation npss is to provide insight into these complex interactions through computational simulations. Numerical plasma simulation on advanced space propulsion. Pdf propulsion system simulation using the toolbox for the. The performance analysis consisted of a comparison of three engine configurations, the two hprte variants and a. Numerical propulsion system simulation ora research. Transient modeling of 10 mw supercritical co2 brayton power. Overview of studies using the numerical propulsion system. This concept is called the numerical propulsion system simulation npss. In addition, cm file manager provides tools to manage a simulation. Hoste, vincent casseau, marco fossati y centre for future airspace transportation technology, department of mechanical and aerospace engineering, university of strathclyde, glasgow, g1 1xj, united kingdom and ian j.
In conceptual and preliminary design, many aspects of mechanical products are most efficiently modeled for simulation using 0d1drigid entities. Numerical analysis of ducted propeller and pumpjet propulsion. Numerical analysis of turbulent fluid flow and drag. However, despite its great importance, numerical methodologies for detailed investigations on marine propulsion dynamics are not yet widely covered in. Steadystate modeling of gas turbine engines using the numerical. Numerical propulsion system simulation listed as npss. Numerical investigations of the engine cooling system in a.
Numerical study of propulsion system performance during ship. The simulation uses validated models for fluid mechanics, heat transfer. The integral team has been working for two years to support glenns numerical propulsion system simulation npss, an effort that has received nasas prestigious turning goals into reality tgir award last april. Npss overview to tafw multidisciplinary simulation capabilities. Numerical propulsion system simulation sciencedirect. Numerical investigations of the engine cooling system in a small power vessel pod propulsion system. The analysis is currently focused on largescale modeling of complete aircraft engines. Modular aeropropulsion system simulations mapss, cmapss, cmapss40k. Steadystate modeling of gas turbine engines using the numerical propulsion system simulation code.
The dat file is compatible for creating splines in unigraphics nx, catia, and solidworks. Numerical propulsion system simulation npss, a multi disciplinary system of analysis tools that is focussed on extending the simulation capability from. Received 21 may 1991 atraetthe cost of implementing new. Nowadays surface and underwater vessels with modern propulsion systems and proper hydroacoustic performance have been emerged. The modular aeropropulsion system simulation mapss is a flexible turbofan engine simulation environment that provides easy access to health, control, and engine parameters through a graphical user interface gui. Tool for the integrated dynamic numerical propulsion system. Tool for the integrated dynamic numerical propulsion system simulation npssturbine engine closedloop transient analysis ttectra users guide chin. This simulation is initially being used to support aeropropulsion in the analysis and design of aircraft engines. Npss overview to tafw multidisciplinary simulation.
This virtual wind tunnel, depicted in figure 1, will permit rapid, affordable computation of stability, cost, lifetime, and certification requirements. Toolbox for the modeling and analysis of thermodynamic. The schematic diagram of electromagnetic propulsion system is shown in figure 1. Pumpjet is one of these new systems, mainly employed for the underwater applications. Tenhuei, propulsion system simulation using the toolbox for the modeling and analysis of thermodynamic systems tmats, aiaa 20143929, 50th aiaaasmesaeasee joint propulsion conference, cleveland, oh, july 2830, 2014, also nasatm2014218410, november 2014. Design, analysis, and simulation of rocket propulsion system. Numerical modeling and simulation of supersonic flows in. An introduction to thermodynamic performance analysis of aircraft gas turbine engine cycles using the numerical propulsion system simulation code nasatm2007214690 march 2007 national aeronautics and space administration glenn research center cleveland, ohio 445 scott m. Physical and numerical modeling for advanced propulsion. Over 3 million unverified definitions of abbreviations and acronyms in acronym attic. Configuration management file manager developed for. The model accurately predicts the global behavior of the spacecraft propulsion system in the priming and shutdown process, and also correctly describes the. As shown, the whole simulation region consists of four components, including an outer air cylinder, two electrical conductive rails, the armature not shown between the two rails.
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