| dbo:abstract |
منحنى السحب هو العلاقة بين السحب على الطائرة والمتغيرات الأخرى، مثل الرفع أو معامل الرفع أو زاوية المواجهة أو السرعة. يمكن وصفه بمعادلة أو عرضه كرسم بياني (يسمى أحيانًا «مخطط قطبي»). يمكن التعبير عن السحب كسحب فعلي أو معامل السحب. ترتبط منحنيات السحب ارتباطًا وثيقًا بالمنحنيات الأخرى التي لا تظهر سحبًا، مثل منحنى الطاقة المطلوبة / السرعة، أو منحنى معدل الغرق / السرعة. (ar) The drag curve or drag polar is the relationship between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation or displayed as a graph (sometimes called a "polar plot"). Drag may be expressed as actual drag or the coefficient of drag. Drag curves are closely related to other curves which do not show drag, such as the power required/speed curve, or the sink rate/speed curve. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/CL,_CD_NACA632618.png?width=300 |
| dbo:wikiPageExternalLink |
http://avia.tion.ca/documentation/polar/ |
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36037779 (xsd:integer) |
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dbpedia-de:Polardiagramm_(Strömungslehre) |
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21220 (xsd:nonNegativeInteger) |
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1122665374 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:Propeller_(aircraft) dbr:Reynolds_number dbr:Indicated_airspeed dbr:Lift-to-drag_ratio dbr:Lift_(force) dbr:Lift_coefficient dbr:Lifting-line_theory dbr:Light_aircraft dbr:Turboprop dbr:Cruise_(aeronautics) dbr:Equivalent_airspeed dbr:Camber_(aerodynamics) dbr:Density_of_air dbr:Fuel_efficiency dbr:Glide_ratio dbc:Aerodynamics dbc:Aircraft_performance dbr:Drag_coefficient dbc:Airspeed dbr:Drag_(physics) dbr:Angle_of_attack dbr:Angle_of_incidence_(aerodynamics) dbc:Gliding dbr:Otto_Lilienthal dbr:Glider_(sailplane) dbr:Gliding dbr:Flap_(aircraft) dbr:Landing_gear dbr:Thrust dbr:Differential_calculus dbr:Dimensionless_quantity dbc:Drag_(physics) dbr:Polar_coordinates dbr:Freestream dbr:Induced_drag dbr:Mach_number dbr:Wind_tunnel dbr:Speed_to_fly dbr:Parasitic_drag dbr:Wave_drag dbr:Gustav_Eiffel dbr:File:Lift_drag_graph.JPG dbr:File:CL,_CD_NACA632618.png dbr:File:DargPolarAL.png dbr:File:DragPolarNACA633618.png dbr:File:Drag_curves_for_aircraft_in_flight.svg dbr:File:GliderPolar.png dbr:File:PRplot.png dbr:File:Polar_Curve_2.jpg dbr:File:Polar_curve_1.jpg |
| dbp:wikiPageUsesTemplate |
dbt:= dbt:Math dbt:Reflist dbt:Short_description |
| dct:subject |
dbc:Aerodynamics dbc:Aircraft_performance dbc:Airspeed dbc:Gliding dbc:Drag_(physics) |
| rdfs:comment |
منحنى السحب هو العلاقة بين السحب على الطائرة والمتغيرات الأخرى، مثل الرفع أو معامل الرفع أو زاوية المواجهة أو السرعة. يمكن وصفه بمعادلة أو عرضه كرسم بياني (يسمى أحيانًا «مخطط قطبي»). يمكن التعبير عن السحب كسحب فعلي أو معامل السحب. ترتبط منحنيات السحب ارتباطًا وثيقًا بالمنحنيات الأخرى التي لا تظهر سحبًا، مثل منحنى الطاقة المطلوبة / السرعة، أو منحنى معدل الغرق / السرعة. (ar) The drag curve or drag polar is the relationship between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation or displayed as a graph (sometimes called a "polar plot"). Drag may be expressed as actual drag or the coefficient of drag. Drag curves are closely related to other curves which do not show drag, such as the power required/speed curve, or the sink rate/speed curve. (en) |
| rdfs:label |
منحنى السحب (ar) Drag curve (en) |
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wikidata:Drag curve dbpedia-ar:Drag curve dbpedia-th:Drag curve https://global.dbpedia.org/id/ftxD |
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wikipedia-en:Drag_curve?oldid=1122665374&ns=0 |
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wiki-commons:Special:FilePath/Drag_curves_for_aircraft_in_flight.svg wiki-commons:Special:FilePath/Lift_drag_graph.jpg wiki-commons:Special:FilePath/CL,_CD_NACA632618.png wiki-commons:Special:FilePath/DragPolarNACA633618.png wiki-commons:Special:FilePath/GliderPolar.png wiki-commons:Special:FilePath/PRplot.png wiki-commons:Special:FilePath/Polar_Curve_2.jpg wiki-commons:Special:FilePath/Polar_curve_1.jpg wiki-commons:Special:FilePath/DargPolarAL.png |
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wikipedia-en:Drag_curve |
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dbr:Polar_curve_(aviation) dbr:Drag_polar dbr:Drag_Polar dbr:Drag_curve_(gliders) dbr:Polar_curve_(aerodynamics) dbr:Drag_Polar_diagram |
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dbr:Lift-induced_drag dbr:Lift-to-drag_ratio dbr:Cruise_(aeronautics) dbr:Polar_curve_(aviation) dbr:Aircraft_performance dbr:Drag_polar dbr:Flight_dynamics_(fixed-wing_aircraft) dbr:Drag_Polar dbr:Drag_curve_(gliders) dbr:Polar_curve_(aerodynamics) dbr:V_speeds dbr:Drag_Polar_diagram |
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wikipedia-en:Drag_curve |
