Numerical propulsion system simulation ora research. This will allow for comprehensive evaluation of new concepts early in the design phase before a commitment to hardware is made. Dongya he, decheng wan state key laboratory of ocean engineering, school of naval architecture, ocean and civil engineering, shanghai jiao tong university, collaborative innovation center for advanced ship and deepsea exploration, shanghai 200240, china. Modular aeropropulsion system simulations mapss, c. Electromagnetic propulsion, gaussian law, numerical simulation. Numerical zooming between a npss engine system simulation. This technology has been applied in different scenarios. Physical and numerical modeling for advanced propulsion. Design, analysis, and simulation of rocket propulsion system.
Numerical modeling of cavitating venturi a flow control. The nasa numerical propulsion system simulation npss is designed to reduce the cost of designing and implementing aircraft propulsion systems through the use of numerical computation and simulation. The program aids in unifying the nozzle, chamber and injector portions of a rocket propulsion system design effort quickly and efficiently using a streamlined graphical user interface gui. Numerical propulsion system simulation listed as npss. The objective of the numerical propulsion system simulation npss is to provide insight into these complex interactions through computational simulations. Pdf integrated control modeling for propulsion systems using. Numerical propulsion system simulation npss, a multidisciplinary system of analysis tools that is focussed on extending the simulation capability from components to the lull system.
In this study, the nozzle with different geometry and parameters was simulated based on computational fluid dynamics simulation and experiment. Numerical propulsion system simulation, npss is an objectoriented, multiphysics, engineering design, and simulation environment that enables the development, collaboration, and seamless integration of system models. In the present paper, a modelling approach for the simulation of the overall ship propulsion plant is presented. Quasionedimensional scramjet combustor flow solver using the numerical propulsion system simulation. In conceptual and preliminary design, many aspects of mechanical products are most efficiently modeled for simulation using 0d1drigid entities. This will provide the product developer with avirtual wind tunnel that will reduce the number of hardware builds and tests required during the development.
The aircraft flow field results define engine inflow conditions for various podded and bli propulsion system configurations. The npss project, being developed at the interdisciplinary technology office at the nasa lewis research center is a numerical test cell designed to provide for comprehensive computational design and analysis of aerospace propulsion systems. Generic engine cycle model for analysis in npss including inlet, compressor, burner, turbine, duct and nozzle. Aircraft system study of boundary layer ingesting propulsion. Numerical investigation of open water performance of. Transient modeling of 10 mw supercritical co 2 brayton power cycles using numerical propulsion system simulation npss. Physical and numerical modeling for advanced propulsion systems 3 ep. The numerical propulsion system simulation npss code was created. Pdf the numerical propulsion system simulation npss, an advanced engineering simulation environment used to design and analyze aircraft engines, has. Modular aeropropulsion system simulations mapss, cmapss, cmapss40k. Simulation npss southwest research institute swri, san antonio, tx. This book presents the main steps for the development of a multiphysic simulation platform, able to represent the motions of a twin screw.
High fidelity, nonlinear, integrated nozzle installation. Npss stands for numerical propulsion system simulation nasa. This will provide the product developer with avirtual wind tunnel that will reduce the number of hardware builds and tests required during the development of. The goal of the numerical propulsion system simulation npss project at the nasa glenn research center is to develop technologies that enable costeffective computational simulations of a complete airbreathing gas turbine engine in sufficient. 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. Steadystate modeling of gas turbine engines using the. There are many more options available for controlling the simulation and the solver can handle many independentdependent. 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. Received 21 may 1991 atraetthe cost of implementing new. Numerical analysis of a waterjet propulsion system 3 5. Numerical propulsion system simulation how is numerical. 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.
System dynamic characteristic simulation of spacecraft. A numerical simulation of the coupled rotatingoscillating motion of a fourpropeller propulsion system was conducted on the basis of the oversetgrid technique considering gravity. Numerical propulsion system simulation sciencedirect. What is 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. This concept is called the numerical propulsion system simulation npss.
Numerical modeling and simulation of supersonic flows in propulsion systems by opensource solvers. 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. 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. Pergamon press plc numerical propulsion system simulation r. 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. Nichols nasa lewis research center, interdisciplinary technology office, cleveland, oh 445, u. Introduction to numerical propulsion system simulation. Numerical investigation of open water performance of hybrid crp podded propulsion system. An overview advances in computational technology and in physicsbased modeling are. Numerical propulsion system simulation npss is an objectoriented, multiphysics, engineering design and simulation environment that enables development, collaboration and seamless integration of system models. Npss is the industry standard modeling and simulation package for aircraft propulsion systems, and the ability to design, size, integrate, and analyze electric power systems will enable industry efforts towards the development of electrified aircraft propulsion. In a proofofprinciple effort to demonstrate the feasibility of magnetically shielded ms hall thrustersan existing laboratory, thruster has been modified with the guidance of physicsbased numerical simulation. As an important overcurrent component of the waterjet propulsion system, the main function of a nozzle is to transform the mechanical energy of the propulsion pump into the kinetic energy of the water and eject the water flow to obtain thrust. Development of a prototype simulation executive with.
Theotokatos shipbuilding department, school of technological applications tei of athens st. Steadystate modeling of gas turbine engines using the numerical propulsion system simulation code. One such system is being developed by the numerical propulsion system simulation npss project. Download citation the numerical propulsion system simulation. Jet propulsion laboratory, california institute of technology, pasadena, ca, 91109. An objectoriented framework for distributed computational. Npss is defined as numerical propulsion system simulation nasa somewhat frequently. To familiarize students with the numerical implementation of these techniques. Npss overview to tafw multidisciplinary simulation. 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. Tang, chingjen, mcclung, aaron, hofer, douglas, and huang, megan.
The nasa glenn research center is developing an advanced multidisciplinary analysis environment for aerospace propulsion systems called the numerical. A modelling approach for the overall ship propulsion plant. The nasa glenn research center, in partnership with the aerospace industry, other government agencies, and academia, is leading the effort to develop an advanced multidisciplinary analysis environment for aerospace propulsion systems called the. Supporting heterogeneity and distribution in the numerical. The hydrodynamic performance of the multipropeller system was calculated and analyzed under four working conditions. The numerical propulsion system simulation ntrs nasa. Electrical power system sizing within the numerical.
To introduce and develop the main approaches and techniques which constitute the basis of numerical fluid mechanics for engineers and applied scientists. Numerical modeling and simulation of supersonic flows in. How is numerical propulsion system simulation nasa abbreviated. Electromagnetic propulsion uses the physics of moving charge or current conductor in a magnetic field under the electromagnetic force known as lorentz force to accelerate the projectile 1 2 3. Numerical propulsion system simulation how is numerical propulsion system simulation abbreviated. Npss is an objectoriented, multiphysics, engineering design, and simulation environment that enable the development, collaboration, and seamless integration of system models. System simulation npss is one such tool with the ability of performing multidisciplinary and multifidelity analysis. Turbomachinery technical conference and exposition.
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. Overview of studies using the numerical propulsion system. Transient modeling of 10 mw supercritical co2 brayton. Numerical study on the unsteady hydrodynamic performance. To address these issues, we have developed onyx, a javabased objectoriented application framework for aerospace propulsion system simulation. Numerical propulsion system simulation npss, a multi disciplinary system of analysis tools that is focussed on extending the simulation capability from. Design of a laboratory hall thruster with magnetically. Both the 1d and cycle model simulations utilize the numerical propulsion system simulation npss thermodynamic cycle modeling system 4, 5. Steadystate modeling of gas turbine engines using the numerical.
American institute of aeronautics and astronautics 12700 sunrise valley drive, suite 200 reston, va 201915807 703. However, despite its great importance, numerical methodologies for detailed investigations on marine propulsion dynamics are not yet widely covered in scientific literature. 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. Pdf numerical simulation on hydraulic characteristics of.
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