Numerical propulsion system simulation listed as npss. Second international symposium on marine propulsors smp11, hamburg, germany, june 2011 numerical simulation of the selfpropulsion model tests. Cadou university of maryland, college park, md, 20740 a thermodynamic model is developed for a novel underwater propulsion system called a. System modeling of a novel aluminum fueled uuv power system. Numerical simulation models of a sod shock tube problem and b. System dynamic characteristic simulation of spacecraft. Physical and numerical modeling for advanced propulsion. The propulsion system behaviour is a key aspect for the overall dynamics of a ship. The spacecraft propulsion system is used for geosynchronous orbit transfer, threeaxis stabilization and stationkeeping. Mar 15, 2017 the advantage of pumpjet over other propulsion systems can be defined by two factors including high efficiency and very low acoustic effects. Numerical analysis of ducted propeller and pumpjet propulsion. Modeling and simulation of liquid propellant rocket engine. Design, analysis, and simulation of rocket propulsion system by sarah l. The model accurately predicts the global behavior of the spacecraft propulsion system in the priming and shutdown process, and also correctly describes the.
However, when venting hydrogen is not permissible which is the. Numerical analysis of ducted propeller and pumpjet. Numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration and seamless integration of system models. This paper describes the development of the numerical propulsion system simulation npss, a modular and. 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.
Download citation the numerical propulsion system simulation. The pressurant pipelines were separated into several nodes, each. This paper presents results obtained by numerical simulation of double layer formation, stability and characteristics and explores the applicability of this concept to a space mission. Numerical propulsion system simulation consortium npss tm user guide software release. The model accurately predicts the global behavior of the spacecraft propulsion system in the priming and shutdown process, and also correctly describes the transient behavior of the subsystems. Numerical propulsion system simulation how is numerical.
The goals of this model are multiple and complex to achieve realtime modeling, simulation and risk assessment, and its components and system integration can be applied to many technological problems of present interest, such as the engineering models and simulations of complete propulsion systems. 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. 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. Kulhanek submitted to the graduate degree program in aerospace engineering and the graduate faculty of the university of kansas in partial fulfillment of the requirements for the degree of masters of science. To address these issues, we have developed onyx, a javabased objectoriented application framework for aerospace propulsion system simulation.
Transient modeling of 10 mw supercritical co2 brayton power cycles using numerical propulsion system simulation npss. Using corbasec to secure distributed aerospace propulsion. Numerical propulsion system simulation npss 1999 industry. A modelling approach for the overall ship propulsion plant. Numerical simulation of the selfpropulsion model tests. Dimensioning of electric propulsion motors for warships. Dynamic modeling and simulation of an integral bipropellant propulsion doublevalve combined test system. Eai is the official distributor after prior approval from esa and the primary developer of the libraries. Volume dynamics modeling of a turbofan engine propulsion gui. Kulhanek submitted to the graduate degree program in aerospace engineering and the graduate faculty of the university of kansas in partial fulfillment of the requirements for the degree. Numerical modeling and simulation of supersonic flows in. This paper presents the progress in developing the numerical propulsion system simulation, a multifidelity simulation of a complete propulsion system. The nasa glenn research center is developing an advanced multidisciplinary analysis environment for aerospace propulsion systems called the numerical.
Mathematical modelling of dieselelectric propulsion. 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. Solicited topics are aligned with these four themes that will support this nasa research area. Npss numerical propulsion system simulator acronymattic. 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. In advanced highspeed engines, largescale simulation may be the only viable approach for evaluating tbe integration of components like the inlet with the engine. Numerical propulsion system simulation ora research. Design of an integral propulsion system analysis tool. European space propulsion system simulation espss is an european space agency esa toolkit for modelling rocket and satellite propulsion systems.
The numerical propulsion system simulator npss 1 was created to address. Npss is defined as numerical propulsion system simulator somewhat frequently. Transient modeling of 10 mw supercritical co2 brayton power. In conceptual and preliminary design, many aspects of mechanical products are most efficiently modeled for simulation using 0d1drigid entities. Hoste, vincent casseau, marco fossati y centre for future airspace transportation technology. System modeling of a novel aluminum fueled uuv power. 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. Numerical propulsion system simulation sciencedirect. Full text of 2000 numerical propulsion system simulation. Aircraft systems analysis, design and optimization nasa. An objectoriented framework for distributed computational. Numerical propulsion system simulations npss for space. Concluding remarks the numerical propulsion system simulation is a long range program with the ultimate goal of devel oping the capability to reduce the cost and time of developing advanced technology propulsion systems.
Allowing for a much higher specific impulse of up to 104 s, the total thrust delivered by a plasma propulsion system is typically around 1 n and some 20 mn for ion propulsion. Npss focused on airbreathing aircraft engines, but the resulting npss framework may be applied to. Tool for the integrated dynamic numerical propulsion system. In this study, the finite volume method fvm is implemented to predict hydrodynamic forces acting on a pumpjet propulsion system using ansyscfx solver. Tool for the integrated dynamic numerical propulsion system simulation npssturbine engine closedloop transient analysis ttectra users guide chin, jeffrey c.
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. Cadou university of maryland, college park, md, 20740 a thermodynamic model is developed. Request pdf on aug 19, 2019, jeffrey csank and others published electrical power system sizing within the numerical propulsion system simulation find, read and cite all the research you need. An integrated approach to conversion, verification. The system is closed by two or threeparameter numerical simulation of highspeed separation flow in the aerospace propulsion systems e.
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. Numerical simulation of the helicon double layer thruster concept. Volume dynamics modeling of a turbofan engine propulsion. The numerical propulsion system simulation npss is a full propulsion system simulation tool used by aerospace engineers to predict and analyze the aerothermodynamic behavior of commercial jet aircraft, military applications, and space transportation. Ethan eagle university of michigan, ann arbor, mi, 48109 daniel f. Tool for the integrated dynamic numerical propulsion. Introduction to numerical propulsion system simulation. Npss is an objectoriented, multiphysics, engineering design, and simulation environment that enable the development, collaboration, and seamless integration of system models. Modular aeropropulsion system simulations mapss, cmapss. Numerical propulsion system simulation npss code development effort focused on the use. How is numerical propulsion system simulator abbreviated. What is numerical propulsion system simulation npss. Numerical simulation of the helicon double layer thruster. In order to investigate the system dynamics of spacecraft propulsion system with complex pressurization pipelines and propellant supply pipelines, a modular and extensible simulator upssim was developed.
Numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration. Dynamic modeling and simulation of an integral bipropellant. Modular aeropropulsion system simulations mapss, cmapss, cmapss40k. True to be said, the elaborate, and in some cases essentially manual, setup. The doublevalve combined test system in this paper is the ground test system of an integral bipropellant propulsion tank pressurization system. 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. Npss stands for numerical propulsion system simulator. In this study, the finite volume method fvm is implemented to predict hydrodynamic forces acting on a pumpjet propulsion system using. Jun 21, 2018 modular aeropropulsion system simulations mapss, cmapss, cmapss40k. Its function is to check whether the performance of the two types of key components in the pressurization system can meet the design requirement before the propulsion system whole system test.
These modeling objectives enable gem to combine both steadystate. System modeling of a novel aluminum fueled uuv power system w. However, despite its great importance, numerical methodologies for detailed investigations on marine propulsion dynamics are not yet widely covered in scientific literature. These methods, along with a hybrid method of combining the first two methods, were evaluated for the rate of turndown in the power. Numerical simulation of magneticnozzle flows, abstract numerical simulations of magneticnozzle flows have been successfully conducted in the interest of providing valuable insights and detailed design guidance to nearfuture experimental efforts. Results show that incorporating the sofc is not beneficial in cases where venting hydrogen overboard is permissible. Simulation of electric propulsion thrusters nato sto. Numerical modeling and simulation of supersonic flows in propulsion systems by opensource solvers jimmyjohn o. Find materials for this course in the pages linked along the left. Modeling and simulation of system dynamics for spacecraft. The system is modeled using a nasadeveloped framework called numerical propulsion system simulation npss by assembling thermodynamic models developed for each component. Tool for the integrated dynamic numerical propulsion system simulation npssturbine engine closedloop transient analysis ttectra users guide. Electrical power system sizing within the numerical.
The advantage of pumpjet over other propulsion systems can be defined by two factors including high efficiency and very low acoustic effects. The fluid system design method as used by gfssp and espss blend in very well with. The electrification of warship propulsion system is a very attractive solution, as it provides increased safety, survivability, maneuverability, precise and smooth. Modular aeropropulsion system simulations mapss, c. The analysis has been conducted using a combination of 1d and 2d numerical codes. The numerical propulsion system simulation ntrs nasa. The main motivation for modelling a dieselelectric propulsion dep system is for simulation of different scenarios to check for performance and stability in the electrical network, and improving the power management system pms with more advanced control theory, both. Test bed results will drive the numerical propulsion system simulation npss corbasec production development and deployment npss is part of the highperformance computing and communications hpcc program the npss allows various aerospace companies and nasa glenn and nasa. 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. This heterogeneous mix of computers should make the optimal use of the ensemble of npss application programs. Southwest research institute swri, san antonio, tx august 2019 npss is an object oriented, multiphysics, engineering design and simulation environment which enables development, collaboration and seamless integration of system models. Introduction to numerical propulsion system simulation npss.