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Experimental And Numerical Investigation Of Vortex Flow Over A 76 60 Deg Double Delta Wing
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Book Synopsis Experimental and numerical investigation of vortex flow over a 76/60-deg double-delta wing by : J. E. J. Maseland
Download or read book Experimental and numerical investigation of vortex flow over a 76/60-deg double-delta wing written by J. E. J. Maseland and published by . This book was released on 1992 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Vortex Flow Over Delta and Double-Delta Wings at Low Speed by : N. G. Verhaagen
Download or read book An Experimental Investigation of the Vortex Flow Over Delta and Double-Delta Wings at Low Speed written by N. G. Verhaagen and published by . This book was released on 1983 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind-tunnel investigation was performed to study, by employing a laserlight-sheet and oil-flow visualization technique, the flow above and behind a sharp-edge 76 deg, delta wing and two sharp-edged double-delta wing models (76/60 and 76/40 deg., kink at midcord). In addition, balance measurements were performed to determine lift, drag and pitching moment. The tests were carried out for angles of attack from 5 to 25 deg. and at a free-stream velocity of 30 m/sec, corresponding to a Reynolds number of 1400000 x 10 to the 6th power, based on centerline chord. Above both double-delta wings a single-branched strake vortex is formed fed by vorticity from the strake leading edge. Downstream of the leading-edge kink a wing vortex is formed which is conjectured to be single-branched at about 5 deg, angle of attack and double branched at angles of 10 deg., an beyond. The flow pattern downstream of the trailing edge of the 76/60 deg. double-delta wing has been observed to be similar to that behind the delta wing. Above the 76/40 deg. double-delta wing breakdown of both the wing and strake vortices took place ahead of the trailing edge. (Author).
Book Synopsis Experimental and Numerical Investigation of the Vortex Flow Over a Sharp Edged Delta Wing; with and Without Sideslip by : S. H. J. Naarding
Download or read book Experimental and Numerical Investigation of the Vortex Flow Over a Sharp Edged Delta Wing; with and Without Sideslip written by S. H. J. Naarding and published by . This book was released on 1988 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722035198 Total Pages :38 pages Book Rating :4.0/5 (351 download)
Book Synopsis A Study of the Vortex Flow Over 76/40-Deg Double-Delta Wing by : National Aeronautics and Space Administration (NASA)
Download or read book A Study of the Vortex Flow Over 76/40-Deg Double-Delta Wing written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-29 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A low-speed wind-tunnel study of the flow about a 76/40-deg double-delta wing is described for angles of attack ranging from -10 to 25 deg and Reynolds numbers ranging from 0.5 to 1.5 Million. The study was conducted to provide data for the purpose of understanding the vortical flow behavior and for validating Computational Fluid Dynamics methods. Flow visualization tests have provided insight into the effect of the angle of attack and Reynolds number of the vortex-dominated flow both on and off of the surface of the double-delta wing. Upper surface pressure recordings from pressure orifices and Pressure Sensitive Paint have provided data on the pressures induced by the vortices. Flowfield surveys were carried out at an angle of attack of 10 deg by using a thin 5-hole probe. Numerical solutions of the compressible thin-layer Navier-Stokes equations were conducted and compared to the experimental data. Verhaagen, N. G. and Jenkins, L. N. and Kern, S. B. and Washburn, A. E. Langley Research Center NAS1-19480; RTOP 505-90-52-01...
Book Synopsis A Study of the Vortex Flow Over 76/40-deg Double-delta Wing by : N. G. Verhaagen
Download or read book A Study of the Vortex Flow Over 76/40-deg Double-delta Wing written by N. G. Verhaagen and published by . This book was released on 1995 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Vortex-Tail Interaction on a 76/40 Degree Double-Delta Wing by :
Download or read book Experimental Investigation of Vortex-Tail Interaction on a 76/40 Degree Double-Delta Wing written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to quantify the vortex-tail interaction on a 76/40 degree double delta wing model. The effects of different fillets at the wing/strake juncture, tail span wise positions, and angles of attack were evaluated. The vertical tails were instrumented with 28 fast response pressure transducers. Pressure time histories and frequency power spectral densities were analyzed for 35 configurations. Angle of attack was varied from -2 to 40 degrees, tunnel dynamic pressure was 26.74 psf and Reynolds number was 1.3 million. The results show a strong dependence on fillet geometry, tail position, transducer measurement location, and angle of attack on the magnitude and frequency of the tail response to the vortex forcing. In addition, a low frequency pulse was found that contained tremendous energy.
Book Synopsis A Study of the Vortex Flow Over 76/40-degrees Double-delta Wing by : N. G. Verhaagen
Download or read book A Study of the Vortex Flow Over 76/40-degrees Double-delta Wing written by N. G. Verhaagen and published by . This book was released on 1995 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation of Vortex Breakdown Over A 70 Degree Delta Wing Using an Euler Code by : Magnus Tormalm
Download or read book Numerical Investigation of Vortex Breakdown Over A 70 Degree Delta Wing Using an Euler Code written by Magnus Tormalm and published by . This book was released on 1995 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation of the Flow Over a Double Delta Wing at High Incidence by : John A. Ekaterinaris
Download or read book Numerical Investigation of the Flow Over a Double Delta Wing at High Incidence written by John A. Ekaterinaris and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Incompressible Flow Over Delta and Double-Delta Wings by : James K. Nathman
Download or read book An Experimental Investigation of Incompressible Flow Over Delta and Double-Delta Wings written by James K. Nathman and published by . This book was released on 1976 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of the flow over delta and double-delta wings was conducted in a 7' x 10' low speed wing tunnel. The configurations tested were AR-3 and AR-4 delta wings and the AR-4 wing which was modified with AR-1 and AR-2 strakes attached to form double-delta wings. Pressure measurements, surface flow visualization, and vortex core visualization studies were conducted over a wide range of angles of attack.
Book Synopsis Numerical Investigation Into Vortical Flow about a Delta-wing Configuration Up to Incidences at which Vortex Breakdown Occurs in Experiment by : J. I. van den Berg
Download or read book Numerical Investigation Into Vortical Flow about a Delta-wing Configuration Up to Incidences at which Vortex Breakdown Occurs in Experiment written by J. I. van den Berg and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation Into Vortical Flow about a Delta-wing Configuration Up Ti Incidences at which Vortex Breakdown Occurs in Experiment by : J. I. Van den Berg
Download or read book Numerical Investigation Into Vortical Flow about a Delta-wing Configuration Up Ti Incidences at which Vortex Breakdown Occurs in Experiment written by J. I. Van den Berg and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Fluid Dynamics Investigation of Vortex Breakdown for a Delta Wing at High Angle of Attack by : Jacob A. Freeman
Download or read book Computational Fluid Dynamics Investigation of Vortex Breakdown for a Delta Wing at High Angle of Attack written by Jacob A. Freeman and published by . This book was released on 2003-03-01 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the commercially available FLUENT 3-D flow field solver, this research effort investigated vortex breakdown over a delta wing at high angle of attack (a) in preparation for investigation of active control of vortex breakdown using steady, along- core blowing A flat delta-shaped half-wing with sharp leading edge and sweep angle of 600 was modeled at a 180 in a wind tunnel at Mach 0,04 and Reynolds number of 3,4 x 10(sub 5). A hybrid (combination of structured and unstructured) numerical mesh was generated to accommodate blowing ports on the wing surface. Results for cases without and with along-core blowing included comparison of various turbulence models for predicting both flow field physics and quantitative flow characteristics, FLUENT turbulence models included Spalart-Allmaras (S-A), Renormalization Group k-e, Reynolds Stress (RSM), and Large Eddy Simulation (LES), as well as comparison with laminar and inviscid models. Mesh independence was also investigated, and solutions were compared with experimentally determined results and theoretical prediction, These research results show that, excepting the LES model for which the computational mesh was insufficiently refined and which was not extensively investigated, none of the turbulence models above, as implemented with the given numerical grid, generated a solution which was suitably comparable to the experimental data. Much more work is required to find a suitable combination of numerical grid and turbulence model.
Book Synopsis Vortex flow and vortex breakdown above a delta wing in high supersonic flow by : Sharon Rose Donohoe
Download or read book Vortex flow and vortex breakdown above a delta wing in high supersonic flow written by Sharon Rose Donohoe and published by . This book was released on 1996 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Flow Fields about Delta and Double-delta Wings at Low Speeds by : William H. Wentz (Jr.)
Download or read book An Experimental Investigation of the Flow Fields about Delta and Double-delta Wings at Low Speeds written by William H. Wentz (Jr.) and published by . This book was released on 1966 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1993 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
