Author: W. H. Wentz
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 140
Book Description
Further Experimental Investigations of Delta and Double-delta Wing Flow Fields at Low Speeds
Author: W. H. Wentz
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 140
Book Description
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 140
Book Description
Further Experimental Investigation of Delta and Double-delta Wing Flow Fields at Low Speeds
Author: William H. Wentz
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
An Experimental Investigation of the Flow Fields about Delta and Double-delta Wings at Low Speeds
Author: William H. Wentz (Jr.)
Publisher:
ISBN:
Category : Delta wing airplanes
Languages : en
Pages : 160
Book Description
Publisher:
ISBN:
Category : Delta wing airplanes
Languages : en
Pages : 160
Book Description
Further Experimental Investigations of Delta and Double-delta Wing Flow Fields at Low Speeds
Author: William H. Wentz (Jr.)
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 140
Book Description
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 140
Book Description
An Experimental Investigation of the Flow Fields about Delta and Boubledelta Wings at Low Speeds
Author: William H. Wentz
Publisher:
ISBN:
Category :
Languages : en
Pages : 143
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 143
Book Description
An Experimental Investigation of the Vortex Flow Over Delta and Double-Delta Wings at Low Speed
Author: N. G. Verhaagen
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
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).
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
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).
NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 428
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 428
Book Description
A Selected Listing of NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 436
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 436
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
Book Description
An Experimental Investigation of Incompressible Flow Over Delta and Double-Delta Wings
Author: James K. Nathman
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
Book Description
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.
Publisher:
ISBN:
Category :
Languages : en
Pages : 79
Book Description
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.