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  1. Science in China Series E: Technological Sciences
  2. Science in China Series E: Technological Sciences : Volume 53
  3. Science in China Series E: Technological Sciences : Volume 53, Issue 8, August 2010
  4. Unsteady aerodynamic modeling based on POD-observer method
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Science in China Series E: Technological Sciences : Volume 60
Science in China Series E: Technological Sciences : Volume 59
Science in China Series E: Technological Sciences : Volume 58
Science in China Series E: Technological Sciences : Volume 57
Science in China Series E: Technological Sciences : Volume 56
Science in China Series E: Technological Sciences : Volume 55
Science in China Series E: Technological Sciences : Volume 54
Science in China Series E: Technological Sciences : Volume 53
Science in China Series E: Technological Sciences : Volume 53, Issue 12, December 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 11, November 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 10, October 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 9, September 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 8, August 2010
New development thoughts on the bio-inspired intelligence based control for unmanned combat aerial vehicle
Unsteady aerodynamic modeling based on POD-observer method
Study of control effects of vortex generators on a supercritical wing
A Favré averaged transition prediction model for hypersonic flows
Study on flow behavior and structure over chined fuselage at high angle of attack
Lattice Boltzmann Method used for the aircraft characteristics computation at high angle of attack
On characteristic modeling of a class of flight vehicles’ attitude dynamics
Solution space analysis of Double Lunar-Swingby periodic trajectory
Control capability analysis for complex spacecraft thruster configurations
Global 4-D trajectory optimization for spacecraft
Liquid propellant analogy technique in dynamic modeling of launch vehicle
A numerical study of turbulent combustion characteristics in a combustion chamber of a scramjet engine
Noise reduction method for nonlinear signal based on maximum variance unfolding and its application to fault diagnosis
Review of soot measurement in hydrocarbon-air flames
Hydraulic design and pre-whirl regulation law of inlet guide vane for centrifugal pump
A new elliptic-parabolic yield surface model revised by an adaptive criterion for granular soils
Fast multipole boundary element analysis of 2D viscoelastic composites with imperfect interfaces
3D thermo-hydro-mechanical-migratory coupling model and FEM analyses for dual-porosity medium
Analysis and research on maximum power point tracking of photovoltaic array with Fuzzy Logic Control and Three-point Weight Comparison Method
Third-order point contact approach for five-axis sculptured surface machining using non-ball-end tools (II): Tool positioning strategy
Cementation of sand grains based on carbonate precipitation induced by microorganism
Effects of nanoscale features on infrared radiative properties of heavily doped silicon complex gratings
Ductility of copper films on sandblasting polyimide substrates
A fundamental research on combustion chemical kinetic model’s precision property
Quantifying the effectiveness of SiO$_{2}$/Au light trapping nanoshells for thin film poly-Si solar cells
Densification and microstructure of carbon/carbon composites prepared by chemical vapor infiltration using ethanol as precursor
Progress in inhomogeneity of critical current and index n value measurements on HTS tapes using contact-free method
Dispersion of particles in the coatings characterized by laser scanning confocal micrscopy (LSCM) I: Vertical dispersion of particles in the coatings and the weathering property studied by orthogonal analysis method of LSCM
Saddlepoint approximation based line sampling method for uncertainty propagation in fuzzy and random reliability analysis
Large field of view computed laminography with the asymmetric rotational scanning geometry
Hybrid microsystem with functionalized silicon substrate and PDMS sample operating microchannel: A reconfigurable microfluidics scheme
Constructal optimization of a vertical insulating wall based on a complex objective combining heat flow and strength
Dynamic analysis of a flameless combustion model combustor
Performance study on three-stage power system of compressed air vehicle based on single-screw expander
Investigation on the temperature-dependence of absorption properties of solar cells with micro-structured surfaces
Science in China Series E: Technological Sciences : Volume 53, Issue 7, July 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 6, June 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 5, May 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 1, Supplement,May 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 4, April 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 3, March 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 2, February 2010
Science in China Series E: Technological Sciences : Volume 53, Issue 1, January 2010
Science in China Series E: Technological Sciences : Volume 52
Science in China Series E: Technological Sciences : Volume 51
Science in China Series E: Technological Sciences : Volume 50
Science in China Series E: Technological Sciences : Volume 49
Science in China Series E: Technological Sciences : Volume 48
Science in China Series E: Technological Sciences : Volume 47
Science in China Series E: Technological Sciences : Volume 46
Science in China Series E: Technological Sciences : Volume 45
Science in China Series E: Technological Sciences : Volume 44
Science in China Series E: Technological Sciences : Volume 43
Science in China Series E: Technological Sciences : Volume 42
Science in China Series E: Technological Sciences : Volume 41
Science in China Series E: Technological Sciences : Volume 40

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Unsteady aerodynamic modeling based on POD-observer method

Content Provider Springer Nature Link
Author Yang, Chao Liu, XiaoYan Wu, ZhiGang
Copyright Year 2010
Abstract A new hybrid approach to constructing reduced-order models (ROM) of unsteady aerodynamics applicable to aeroelastic analysis is presented by using proper orthogonal decomposition (POD) in combination with observer techniques. Fluid modes are generated through POD by sampling observations of solutions derived from the full-order model. The response in the POD training is projected onto the fluid modes to determine the time history of the modal amplitudes. The resulting data are used to extract the Markov parameters of the low-dimensional model for modal amplitudes using a related deadbeat observer. The state-space realization is synthesized from the system’s Markov parameters that are processed with the eigensystem realization algorithm. The POD-observer method is applied to a two-dimensional airfoil system in subsonic flow field. The results predicted by the ROM are in general agreement with those from the full-order system. The ROM obtained by the hybrid approach captures the essence of a fluid system and produces vast reduction in both degrees of freedom and computational time relative to the full-order model.
Starting Page 2032
Ending Page 2037
Page Count 6
File Format PDF
ISSN 16747321
Journal Science in China Series E: Technological Sciences
Volume Number 53
Issue Number 8
e-ISSN 1862281X
Language English
Publisher SP Science China Press
Publisher Date 2010-07-15
Publisher Place Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword aeroelasticity aerodynamic modeling proper orthogonal decomposition observer eigensystem realization algorithm Engineering
Content Type Text
Resource Type Article
Subject Engineering Materials Science
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