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Record Nr. |
UNINA9910706239803321 |
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Autore |
Lin Jensen |
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Titolo |
Aerodynamic lift and moment calculations using a closed-form solution of the Possio equation / / Jensen Lin, Kenneth W. Iliff |
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Pubbl/distr/stampa |
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Edwards, California : , : National Aeronautics and Space Administration, Dryden Flight Research Center, , April 2000 |
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Descrizione fisica |
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1 online resource (22 pages) : illustrations |
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Collana |
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Soggetti |
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Aerodynamic coefficients |
Lift |
Aeroelasticity |
Method of moments |
Unsteady aerodynamics |
Laplace transformation |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"April 2000." |
"Performing organization: NASA Dryden Flight Research Center"--Report documentation page. |
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Nota di bibliografia |
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Includes bibliographical references (pages 21-22). |
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2. |
Record Nr. |
UNINA9910418317803321 |
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Autore |
Kerler-Back Johanna |
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Titolo |
Dynamic iteration and model order reduction for magneto-quasistatic systems / / Johanna Kerler-Back |
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Pubbl/distr/stampa |
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Berlin/Germany, : Logos Verlag Berlin, 2019 |
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Berlin, Germany : , : Logos Verlag Berlin GmbH, , [2019] |
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©2019 |
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ISBN |
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Descrizione fisica |
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1 online resource (ix, 140 pages) : illustrations, charts; digital file(s) |
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Collana |
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Augsburger Schriften zur Mathematik, Physik und Informatik ; ; Band 35 |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Author's doctoral thesis, Universität Augsburg. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Sommario/riassunto |
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Our world today is becoming increasingly complex, and technical devices are getting ever smaller and more powerful. The high density of electronic components together with high clock frequencies leads to unwanted side-effects like crosstalk, delayed signals and substrate noise, which are no longer negligible in chip design and can only insufficiently be represented by simple lumped circuit models. As a result, different physical phenomena have to be taken into consideration since they have an increasing influence on the signal propagation in integrated circuits. Computer-based simulation methods play thereby a key role. The modelling and analysis of complex multi-physics problems typically leads to coupled systems of partial differential equations and differential-algebraic equations (DAEs). Dynamic iteration and model order reduction are two numerical tools for efficient and fast simulation of coupled systems. Formodelling of low frequency electromagnetic field, we use magneto-quasistatic (MQS) systems which can be considered as an approximation to Maxwells equations. A spatial discretization by using the finite element method leads to a DAE system. We analyze the structural and physical properties of this system and develop passivity-preserving model reduction methods. A special block structure of the MQS model is |
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exploited to to improve the performance of the model reduction algorithms. |
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