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Computation of unsteady laminar flow over a flexible two-dimensional membrane wing
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| Zeitschriftentitel: | Physics of Fluids |
|---|---|
| Personen und Körperschaften: | , |
| In: | Physics of Fluids, 7, 1995, 9, S. 2175-2184 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
AIP Publishing
|
| Schlagwörter: |
| author_facet |
Smith, Rick Shyy, Wei Smith, Rick Shyy, Wei |
|---|---|
| author |
Smith, Rick Shyy, Wei |
| spellingShingle |
Smith, Rick Shyy, Wei Physics of Fluids Computation of unsteady laminar flow over a flexible two-dimensional membrane wing Condensed Matter Physics Fluid Flow and Transfer Processes Mechanics of Materials Computational Mechanics Mechanical Engineering |
| author_sort |
smith, rick |
| spelling |
Smith, Rick Shyy, Wei 1070-6631 1089-7666 AIP Publishing Condensed Matter Physics Fluid Flow and Transfer Processes Mechanics of Materials Computational Mechanics Mechanical Engineering http://dx.doi.org/10.1063/1.868467 <jats:p>Computations of the harmonically forced, unsteady viscous flow over a flexible, two-dimensional membrane wing are presented. The aeroelastic problem is nondimensionalized and a set of six basic dimensionless parameters is derived that govern the physical problem. The computational investigation is facilitated by distinguishing three distinct classes of problems—the constant tension, elastic, and inextensible membrane problems—which are associated with limiting cases of the dimensionless parameter set. A pressure-based method for the incompressible Navier–Stokes equations written in general time-dependent curvilinear coordinates is adopted as the flow solver. The computations were performed at a Reynolds number of 4×103, which is near the upper limit of the laminar flow regime. The periodic appearance and collapse of recirculation zones, along with an attendant adjustment in membrane configuration, results in an aeroelastic response, which may not be characterized as a simple harmonic response at the free-stream forcing frequency. Ostensibly, the computations are designed to simulate the behavior of a marine sail in a wind gust; however, the simulation of a harmonically forced free-stream flow also proves to be a useful vehicle for demonstrating some of the more generic features of membrane wing mechanics.</jats:p> Computation of unsteady laminar flow over a flexible two-dimensional membrane wing Physics of Fluids |
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Physics of Fluids |
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| title |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_unstemmed |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_full |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_fullStr |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_full_unstemmed |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_short |
Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_sort |
computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| topic |
Condensed Matter Physics Fluid Flow and Transfer Processes Mechanics of Materials Computational Mechanics Mechanical Engineering |
| url |
http://dx.doi.org/10.1063/1.868467 |
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1995 |
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2175-2184 |
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<jats:p>Computations of the harmonically forced, unsteady viscous flow over a flexible, two-dimensional membrane wing are presented. The aeroelastic problem is nondimensionalized and a set of six basic dimensionless parameters is derived that govern the physical problem. The computational investigation is facilitated by distinguishing three distinct classes of problems—the constant tension, elastic, and inextensible membrane problems—which are associated with limiting cases of the dimensionless parameter set. A pressure-based method for the incompressible Navier–Stokes equations written in general time-dependent curvilinear coordinates is adopted as the flow solver. The computations were performed at a Reynolds number of 4×103, which is near the upper limit of the laminar flow regime. The periodic appearance and collapse of recirculation zones, along with an attendant adjustment in membrane configuration, results in an aeroelastic response, which may not be characterized as a simple harmonic response at the free-stream forcing frequency. Ostensibly, the computations are designed to simulate the behavior of a marine sail in a wind gust; however, the simulation of a harmonically forced free-stream flow also proves to be a useful vehicle for demonstrating some of the more generic features of membrane wing mechanics.</jats:p> |
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| description | <jats:p>Computations of the harmonically forced, unsteady viscous flow over a flexible, two-dimensional membrane wing are presented. The aeroelastic problem is nondimensionalized and a set of six basic dimensionless parameters is derived that govern the physical problem. The computational investigation is facilitated by distinguishing three distinct classes of problems—the constant tension, elastic, and inextensible membrane problems—which are associated with limiting cases of the dimensionless parameter set. A pressure-based method for the incompressible Navier–Stokes equations written in general time-dependent curvilinear coordinates is adopted as the flow solver. The computations were performed at a Reynolds number of 4×103, which is near the upper limit of the laminar flow regime. The periodic appearance and collapse of recirculation zones, along with an attendant adjustment in membrane configuration, results in an aeroelastic response, which may not be characterized as a simple harmonic response at the free-stream forcing frequency. Ostensibly, the computations are designed to simulate the behavior of a marine sail in a wind gust; however, the simulation of a harmonically forced free-stream flow also proves to be a useful vehicle for demonstrating some of the more generic features of membrane wing mechanics.</jats:p> |
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| spelling | Smith, Rick Shyy, Wei 1070-6631 1089-7666 AIP Publishing Condensed Matter Physics Fluid Flow and Transfer Processes Mechanics of Materials Computational Mechanics Mechanical Engineering http://dx.doi.org/10.1063/1.868467 <jats:p>Computations of the harmonically forced, unsteady viscous flow over a flexible, two-dimensional membrane wing are presented. The aeroelastic problem is nondimensionalized and a set of six basic dimensionless parameters is derived that govern the physical problem. The computational investigation is facilitated by distinguishing three distinct classes of problems—the constant tension, elastic, and inextensible membrane problems—which are associated with limiting cases of the dimensionless parameter set. A pressure-based method for the incompressible Navier–Stokes equations written in general time-dependent curvilinear coordinates is adopted as the flow solver. The computations were performed at a Reynolds number of 4×103, which is near the upper limit of the laminar flow regime. The periodic appearance and collapse of recirculation zones, along with an attendant adjustment in membrane configuration, results in an aeroelastic response, which may not be characterized as a simple harmonic response at the free-stream forcing frequency. Ostensibly, the computations are designed to simulate the behavior of a marine sail in a wind gust; however, the simulation of a harmonically forced free-stream flow also proves to be a useful vehicle for demonstrating some of the more generic features of membrane wing mechanics.</jats:p> Computation of unsteady laminar flow over a flexible two-dimensional membrane wing Physics of Fluids |
| spellingShingle | Smith, Rick, Shyy, Wei, Physics of Fluids, Computation of unsteady laminar flow over a flexible two-dimensional membrane wing, Condensed Matter Physics, Fluid Flow and Transfer Processes, Mechanics of Materials, Computational Mechanics, Mechanical Engineering |
| title | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_full | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_fullStr | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_full_unstemmed | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_short | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_sort | computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| title_unstemmed | Computation of unsteady laminar flow over a flexible two-dimensional membrane wing |
| topic | Condensed Matter Physics, Fluid Flow and Transfer Processes, Mechanics of Materials, Computational Mechanics, Mechanical Engineering |
| url | http://dx.doi.org/10.1063/1.868467 |