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An Experimental Investigation Of Incompressible Flow Over Delta And Double Delta Wings
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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 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 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 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Further Experimental Investigation of Delta and Double-delta Wing Flow Fields at Low Speeds by : William H. Wentz
Download or read book Further Experimental Investigation of Delta and Double-delta Wing Flow Fields at Low Speeds written by William H. Wentz and published by . This book was released on 1967 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Buffeting Flows Over Delta Wings by : Wensheng Xie
Download or read book An Experimental Investigation of Buffeting Flows Over Delta Wings written by Wensheng Xie and published by . This book was released on 1998 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Vortex Flow Control Using Juncture Fillets on a Cropped Double-delta Wing by : Sheshagiri K. Hebbar
Download or read book Experimental Investigation of Vortex Flow Control Using Juncture Fillets on a Cropped Double-delta Wing written by Sheshagiri K. Hebbar and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Expansion Flow Field Over a Delta Wing at Supersonic Speed by : W. J. Bannink
Download or read book An Experimental Investigation of the Expansion Flow Field Over a Delta Wing at Supersonic Speed written by W. J. Bannink and published by . This book was released on 1971 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Flow Past Plane Delta Wings at M by : V. A. Bashkin
Download or read book Experimental Investigation of Flow Past Plane Delta Wings at M written by V. A. Bashkin and published by . This book was released on 1968 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented here are the results of an experimental investigation of flow past delta wings with sharp and blunt leading edges and sweep angles of = 60, 70 and 80 degrees at a free-stream Mach number of 5 and angles of attack ranging from 0. t0 70 degrees. (Author).
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 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 Analytical and Experimental Investigations of Delta Wings in Incompressible Flow by : Balusu M. Rao
Download or read book Analytical and Experimental Investigations of Delta Wings in Incompressible Flow written by Balusu M. Rao and published by . This book was released on 1976 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theoretical analysis of delta wings in incompressible flow is created by a numerical lifting-surface theory based upon a velocity potential formulation. This theory has been expanded to include spanwise velocity effects and the leading-edge departion associated with delta wings. The numerical technique has made use of both fixed and free wakes. In the fixed-wake model, the analytical results of Brown and Michael have been used to position the leading-edge vortex. In the more refined free-wake model, the leading edge separation was modeled as a discrete number of vortices attached to the leading-edge, which are allowed to align themselves with streamlines. Experimental research included wind tunnel tests to determine the vortex location, vortex burst location, and upper surface pressure distribution on a delta wing, AR = 2, in an oscillatory airstream.
Book Synopsis An Experimental Investigation of Leading Edge Vortical Flow about a Delta Wing During Wing Rock by : Michael Denis Nelson
Download or read book An Experimental Investigation of Leading Edge Vortical Flow about a Delta Wing During Wing Rock written by Michael Denis Nelson and published by . This book was released on 1991 with total page 368 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 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Transonic Flow at the Leeward Side of a Delta Wing at High Incidence by : E. M. Houtman
Download or read book Experimental Investigation of the Transonic Flow at the Leeward Side of a Delta Wing at High Incidence written by E. M. Houtman and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Delta Wing Vortex Flow with and Without External Jet Blowing by : Kenneth P. Iwanski
Download or read book An Experimental Investigation of Delta Wing Vortex Flow with and Without External Jet Blowing written by Kenneth P. Iwanski and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of the Flow Fields about Delta and Boubledelta Wings at Low Speeds by : William H. Wentz
Download or read book An Experimental Investigation of the Flow Fields about Delta and Boubledelta Wings at Low Speeds written by William H. Wentz and published by . This book was released on 1966 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental Investigation of Aerodynamics and Flow Characteristics of Slender and Nonslender Delta Wings by : Muneeb Dogar
Download or read book An Experimental Investigation of Aerodynamics and Flow Characteristics of Slender and Nonslender Delta Wings written by Muneeb Dogar and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The leading-edge vortical flow structure over a 65 slender (DW65) and a 50 non-slender (DW50) delta wing was investigated at Reynolds number of order 105. Particular emphasis was placed in the variation of vortex flow quantities and critical flow parameters with change in angle of attack and chordwise distance. In addition, the progression of vortex breakdown with angle of attack was documented based on pressure and three-dimensional velocity information. A glimpse of wake-vortex evolution was also discussed. Moreover, aerodynamic lift and drag forces were evaluated based on wake survey analyses and compared with direct force balance measurements. Special attention was focused on drag characterization based on lift dependency where Maskell formulation was adopted for the estimation of induced drag. The results showed that the flow over DW65 and DW50 has some qualitative resemblances but quantitatively they are two contrasting flows. Prior to the breakdown, in the case of DW65, the vortical flow is near-axisymmetric but in the case of DW50, the vortex and axial core never matches and even the definition of distinctive vortex center is often ambiguous except at higher angles of attack, moreover the axial core was always accompanied by large momentum deficit. The variation of vortex flow quantities in streamwise direction showed self-similar behavior when plotted against radial distance scaled by local semi-span while interestingly for DW50 self-similar behavior was showed only by the variation of total pressure loss about the pressure core. It was established that the flow over DW50 was marred by an active interaction of vortical and boundary layer flow due to the close proximity of vortex to the wing surface. For the first time the progression of vortex breakdown over the wing surface was reported on the basis of three-dimensional flow information which elucidated the respective indicators of breakdown for slender and non-slender delta wings. Lastly, wake survey analyses were carried and comparison of different lift computational models and direct measurement were presented. Moreover, the estimation of profile drag is sensitive to the definition of wake region whereas vortex breakdown upstream of trailing-edge resulted in underestimation and overestimation of induced drag and CL, respectively. For all the cases of slender wing and high angle of attack cases of non-slender delta wing showed that the induced drag always constituted more than 50% of the total drag. The results provided here provided a deepened and extended insight on vortical and aerodynamics characteristics of slender and non-slender delta wing. " --
