Physical Lumping Methods for Developing Linear Reduced Models for High Speed Propulsion Systems
Title | Physical Lumping Methods for Developing Linear Reduced Models for High Speed Propulsion Systems PDF eBook |
Author | National Aeronautics and Space Adm Nasa |
Publisher | Independently Published |
Pages | 28 |
Release | 2018-12-29 |
Genre | |
ISBN | 9781792734007 |
In gasdynamic systems, information travels in one direction for supersonic flow and in both directions for subsonic flow. A shock occurs at the transition from supersonic to subsonic flow. Thus, to simulate these systems, any simulation method implemented for the quasi-one-dimensional Euler equations must have the ability to capture the shock. In this paper, a technique combining both backward and central differencing is presented. The equations are subsequently linearized about an operating point and formulated into a linear state space model. After proper implementation of the boundary conditions, the model order is reduced from 123 to less than 10 using the Schur method of balancing. Simulations comparing frequency and step response of the reduced order model and the original system models are presented. Immel, S. M. and Hartley, Tom T. and Deabreu-Garcia, J. Alex ...
Scientific and Technical Aerospace Reports
Title | Scientific and Technical Aerospace Reports PDF eBook |
Author | |
Publisher | |
Pages | 316 |
Release | 1992 |
Genre | Aeronautics |
ISBN |
Government Reports Annual Index
Title | Government Reports Annual Index PDF eBook |
Author | |
Publisher | |
Pages | 1720 |
Release | |
Genre | Research |
ISBN |
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Government Reports Announcements & Index
Title | Government Reports Announcements & Index PDF eBook |
Author | |
Publisher | |
Pages | 970 |
Release | 1992 |
Genre | Science |
ISBN |
A Method for Generating Reduced-Order Linear Models of Multidimensional Supersonic Inlets
Title | A Method for Generating Reduced-Order Linear Models of Multidimensional Supersonic Inlets PDF eBook |
Author | |
Publisher | |
Pages | 86 |
Release | 1998 |
Genre | |
ISBN |
1D and Multi-D Modeling Techniques for IC Engine Simulation
Title | 1D and Multi-D Modeling Techniques for IC Engine Simulation PDF eBook |
Author | Angelo Onorati |
Publisher | SAE International |
Pages | 552 |
Release | 2020-04-06 |
Genre | Technology & Engineering |
ISBN | 0768099528 |
1D and Multi-D Modeling Techniques for IC Engine Simulation provides a description of the most significant and recent achievements in the field of 1D engine simulation models and coupled 1D-3D modeling techniques, including 0D combustion models, quasi-3D methods and some 3D model applications.
The ... IEEE Conference on Control Applications
Title | The ... IEEE Conference on Control Applications PDF eBook |
Author | |
Publisher | |
Pages | 592 |
Release | 1992 |
Genre | Automatic control |
ISBN |