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Unstructured Grid Viscous Flow Simulation Over High Speed Research Technology Concept Airplane At High Lift Conditions
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721035366 Total Pages :32 pages Book Rating :4.0/5 (353 download)
Book Synopsis Unstructured Grid Viscous Flow Simulation Over High-Speed Research Technology Concept Airplane at High-Lift Conditions by : National Aeronautics and Space Administration (NASA)
Download or read book Unstructured Grid Viscous Flow Simulation Over High-Speed Research Technology Concept Airplane at High-Lift Conditions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-12 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical viscous solutions based on an unstructured grid methodology are presented for a candidate high-speed civil transport configuration, designated as the Technology Concept Airplane (TCA), within the High-Speed Research (HSR) program. The numerical results are obtained on a representative TCA high-lift configuration that consisted of the fuselage and the wing, with deflected full-span leading-edge and trailing-edge flaps. Typical on-and off-surface flow structures, computed at high-lift conditions appropriate for the takeoff and landing, indicated features that are generally plausible. Reasonable surface pressure correlations between the numerical results and the experimental data are obtained at free-stream Mach number M(sub infinity) = 0.25 and Reynolds number based on bar-c R(sub c) = 8 x 10(exp 6) for moderate angles of attack of 9.7 deg. and 13.5 deg. However, above and below this angle-of-attack range, the correlation between computed and measured pressure distributions starts to deteriorate over the examined angle-of-attack range. The predicted longitudinal aerodynamic characteristics are shown to correlate very well with existing experimental data across the examined angle-of-attack range. An excellent agreement is also obtained between the predicted lift-to-drag ratio and the experimental data over the examined range of flow conditions.Ghaffari, FarhadLangley Research CenterVISCOUS FLOW; SYSTEMS SIMULATION; AERODYNAMIC CHARACTERISTICS; HIGH SPEED; UNSTRUCTURED GRIDS (MATHEMATICS); AERODYNAMIC CONFIGURATIONS; ANGLE OF ATTACK; CORRELATION; DEFLECTION; DETERIORATION; FREE FLOW; FUSELAGES; MACH NUMBER; LIFT DRAG RATIO; PRESSURE DISTRIBUTION
Book Synopsis Unstructured Grid Viscous Flow Simulation Over High-Speed Research Technology Concept Airplane at High-Lift Conditions by : Farhad Ghaffari
Download or read book Unstructured Grid Viscous Flow Simulation Over High-Speed Research Technology Concept Airplane at High-Lift Conditions written by Farhad Ghaffari and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical viscous solutions based on an unstructured grid methodology are presented for a candidate high-speed civil transport configuration designated as the Technology Concept Airplane (TCA), within the High-Speed Research (HSR) program. The numerical results are obtained on a representative TCA high-lift configuration that consisted of the fuselage and the wing, with deflected full-span leading-edge and trailing-edge flaps. Typical on- and off-surface flow structures, computed at high-lift conditions appropriate for the takeoff and landing, indicated features that are generally plausible. Reasonable surface pressure correlations between the numerical results and the experimental data are obtained at free-stream Mach number M[sub infinity]=0.25 and Reynolds number c[overscore] R[sub c overscore]=8 times 10[factor 6] for moderate angles of attack of 9.7 deg. and 13.5 deg. However, above and below this angle-of-attack range, the correlation between computed and measured pressure distributions starts to deteriorate over the examined angle-of-attack range. The predicted longitudinal aerodynamic characteristics are shown to correlate very well with existing experimental data across the examined angle-of-attack range. An excellent agreement is also obtained between the predicted lift-to-drag ratio and the experimental data over the examined range of flow conditions.
Book Synopsis Unstructured Grid Viscous Flow Simulation Over High-speed Research Tecnology Concept Airplane at High-lift Conditions by : Farhad Ghaffari
Download or read book Unstructured Grid Viscous Flow Simulation Over High-speed Research Tecnology Concept Airplane at High-lift Conditions written by Farhad Ghaffari and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unstructured Grid Viscous Flow Simulation Over High-speed Research Technology Concept Airplane at High-lift Condttions by : Farhad Ghaffari
Download or read book Unstructured Grid Viscous Flow Simulation Over High-speed Research Technology Concept Airplane at High-lift Condttions written by Farhad Ghaffari and published by . This book was released on 1999 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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