Flight equations with drag



    • [PDF File] Optimum Rocket Trajectories With Aerodynamic Drag

      https://web.stanford.edu/~cantwell/AA283_Course_Material/AA283_Resources/References/Bryson_and_Ross_Optimum_Rocket_Trajectories_With_Aerodynamic_Drag.pdf

      m < 0 throughout the flight since fuel cannot be "sucked back in" to the rocket. Now, let us define an "admissible trajectory" as one that satisfies Equations [1 through 5] and in addition has certain y* V (xf,yf> ^0 J . X Fig. 1 Trajectory notation 465 Optimum Rocket Trajectories With Aerodynamic Drag A. E. BRYSON Jr.1 and STANLEY E. ROSS2

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    • [PDF File] Dragonfly flight - Cornell University

      https://dragonfly.tam.cornell.edu/publications/2008_Dragonfly_flight.pdf

      drag force that opposes its motion. As illustrated in figure 1, the lift can support the weight of a plane or provide a for-ward thrust to an insect or bird that flaps its wings in flight. Animal and airplane flight can be characterized, in part, by the Reynolds number Re, a measure of the relative im-portance of inertial and viscous forces.

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    • [PDF File] Modeling Flight over a Spherical Earth - Harvey Mudd College

      https://www.math.hmc.edu/~dyong/math164/2008/zitter/finalreport.pdf

      Modeling Flight over a Spherical Earth David Zitter May 9, 2008 1 Introduction Deriving the equations of motion of a point-mass projectile moving in a vacuum solely under the influence gravity is one of the first things we learn regarding the physics of flight. This model of flight is ... where D is the drag, Q the side force, and L the lift. ...

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    • [PDF File] 12. Gliding Flight (Steady State) - Virginia Tech

      https://archive.aoe.vt.edu/lutze/AOE3104/glidingflight.pdf

      velcocity vector balances the drag. The equations of motion are given by: (1) where is the flight path angle (the angle the velocity makes with the horizontal). If we divide one equation by the other, we get: (2) We see from Eq. (2) that the flight path angle is negative, as expected! We can then define the

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    • [PDF File] Aeronautics for Introductory Physics - NASA

      https://www.nasa.gov/wp-content/uploads/2015/09/aero_introductory_physics.pdf

      Building Conceptual Models of Flight Physics 7 Modeling Method of Instruction in Physics 8 Levels of Inquiry 9 Learning Cycle 10. Scientific Thinking 12. Inquiry Lesson/Lab: Scaling and Paper Airplanes 13 Literary/Data Analysis: Wings According to Size 20. Successful Flight Test of Shape-Changing Wing Surface 29. Constant Velocity 30

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    • [PDF File] Aerodynamic Drag Modeling for Ballistics

      https://appliedballisticsllc.com/wp-content/uploads/2021/06/Aerodynamic-Drag-Modeling-for-Ballistics.pdf

      • The drag coefficient (CD) scales the drag at each speed based on the shape of the bullet. • The drag curve is just the drag coefficient for all speeds. • The drag curve of a bullet is determined by measuring its drag at multiple flight speeds; measure enough points at different speeds and connect the dots to make a drag curve.

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    • [PDF File] Glider flight, Physics 2200 - Computational Physics, Fall …

      https://www.phys.uconn.edu/~rozman/Courses/P2200_14F/downloads/glider/glider-2014-11-05.pdf

      Lift and drag are proportional to a surface area of the wings, S, and the dynamic pressure, 1=2ˆV2, where ˆis the density of air, and Vthe forward velocity of the aircraft. The equations for lift and drag are: L= 1 2 ˆV2C LS (1) D= 1 2 ˆV2C DS (2) The ration of lift to drag, L=Dis called the aerodynamic efficiency of the aircraft. R L D ...

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    • [PDF File] Topic 1 | Projectile Motion with Air Resistance

      https://web.physics.wustl.edu/~wimd/topic01.pdf

      ignoring air drag is quite unrealistic. Air drag is an important part of the game of baseball! r t 5 t 1Dt 0 x (m) 250 y (m) 50 Without drag With drag T1.2 Computer-generated trajectories of a baseball with and without drag. Note that different scales are used on the horizontal and vertical axes. (T1.6) v y 1n 112 5 v y n 21a y 1n Dt y1n 112 5 ...

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    • [PDF File] Volume 1. Performance Phase. Chapter 11. Cruise …

      https://apps.dtic.mil/sti/tr/pdf/ADA320213.pdf

      coefficients of lift and drag from Equations 11.12 and 11.17 are plotted to construct the drag polar as shown in Figure 11.2. This drag polar represents the aerodynamic ... therefore drag, at each set of flight conditions and measured fuel flows. Relationships for engine parameters, i.e., thrust, fuel flow, and engine speed, can be

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    • [PDF File] The Flight Envelope - Princeton University

      http://www.stengel.mycpanel.princeton.edu/MAE331Lecture8.pdf

      2 Flight Envelope Determined by Available Thrust •Flight ceiling defined by available climb rate –Absolute: 0 ft/min –Service: 100 ft/min –Performance: 200 ft/min Excess thrust provides the ability to accelerate or climb • All altitudes and airspeeds at which an aircraft can fly –in steady, level flight –at fixed weight 3

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    • [PDF File] Lecture Rocket Dynamics - University of Washington

      https://earthweb.ess.washington.edu/space/ess472/Lecture_RocketDynamics.pdf

      section will have a higher drag than thinner bodies. Sleek designs, or designs that are streamlined and change cross-sectional area gradually are also critical for achieving minimum form drag. (2) Pressure Drag or Form Drag Drag coefficients for different shapes. Elimination of vortices in the wake reduce the drag (2) Pressure Drag or Form Drag ...

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    • [PDF File] Introduction to Aerospace Engineering 5. Aircraft …

      https://archive.aoe.vt.edu/lutze/AOE2104/5performance.pdf

      For the SPECIAL CASE, of straight and level flight, ( ( = 0 ) the equations of interest become: These are the equations that we use for determining performance characteristics (primarily the two equations dealing with lift and drag), and stability characteristics (primarily the pitch-moment and lift equations).

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    • [PDF File] 8. Level, Non-Accelerated Flight (1) - Virginia Tech

      https://archive.aoe.vt.edu/lutze/AOE3104/Performance8.pdf

      the level flight equations are given by Eq. (3), repeated here: (9) If we divide one equation by the other, and rearrange terms, we have: 4 (10) ... occurs at the minimum drag flight condition which is the same as the maximum L/D flight condition. The so-called lift-to-drag ratio,L/D, is often referred to as the aircraft aerodynamic ...

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    • [PDF File] A MATHEMATICAL FORCE AND MOMENT MODEL OF A UH …

      https://ntrs.nasa.gov/api/citations/19770024231/downloads/19770024231.pdf

      the equations was retained with adjusted constant values used to match the apparent tail rotor damping seen in the flight test data yaw responses. The form of The equations represent aerodynamic forces and moments contributed by each component of the helicopter. The net results are three aerodynamic

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    • [PDF File] Approximate solutions for flight-path angle of a reentry …

      https://ntrs.nasa.gov/api/citations/19640016000/downloads/19640016000.pdf

      equations are used to evaluate how well the derived equations approximate the true value of flight-path angle. The trajectories selected were such that the space vehicle stayed within a safe flight corridor. Reentry trajectories for a high-drag low-lift vehicle included in the investigation covered a range of

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    • MODEL ROCKET SIMULATION WITH DRAG ANALYSIS by …

      https://physics.byu.edu/docs/thesis/55

      The total drag coefficient of a rocket is estimated by finding the drag coefficients of the individual components, adding the coefficients, and adjusting for interference between the components [5]. For this analysis, the total drag is the sum of the drag coefficients of the nose cone, body tube, base, fins, launch hardware, and the interference.

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    • [PDF File] Flight Thrust, Power, and Energy Relations - MIT

      https://web.mit.edu/16.unified/www/SPRING/systems/Lab_Notes/airpower.pdf

      Flight Thrust, Power, and Energy Relations 5 Feb 09 Lab 1 Lecture Notes Nomenclature D aircraft drag L aircraft lift W total aircraft weight We empty aircraft weight Wp payload weight V flight speed d flight distance S reference area (wing area) b wing span AR wing aspect ratio CL aircraft lift coefficient CD aircraft drag coefficient

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    • [PDF File] Hypersonics TextV2

      https://archive.aoe.vt.edu/mason/Mason_f/ConfigAeroHypersonics.pdf

      %PDF-1.7 %âãÏÓ 341 0 obj > endobj 354 0 obj >/Filter/FlateDecode/ID[1BB00C8FA1099678CB45BC95E5C04E37>8A47DB624D51496EA1FE4810EE0FA99F>]/Index[341 27]/Info 340 0 R ...

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    • [PDF File] 7. Transonic Aerodynamics of Airfoils and Wings - Virginia Tech

      https://archive.aoe.vt.edu/mason/Mason_f/ConfigAeroTransonics.pdf

      The shock waves lead to a rapid increase in drag, both due to the emergence of wave drag, and also because the pressure rise through a shock wave thickens the boundary layer, leading to increased viscous drag. Thus cruise speed is limited by the rapid drag rise. To pick the value of the Mach number associated with the rapid increase in drag, we

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    • Understanding High-Altitude Balloon Flight Fundamentals

      https://www.iastatedigitalpress.com/ahac/article/8327/galley/7923/view/

      (coefficient of drag and Reynolds number). In addition, the differential thermal heat transfer is important for understanding lift particularly around the tropopause region where the ascending balloon gas is expanding (and cooling) while the external stratospheric temperature is increasing. The detailed equations of motion are

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    • [PDF File] Performance - Virginia Tech

      https://archive.aoe.vt.edu/lutze/AOE3104/levelflightperf.pdf

      Level Flight Performance and Level flight Envelope ... It is natural to look at these types of vehicles first since the equations that have to be satisfied for level flight are: (1) From the previous work on thrust and drag models, we know the functional form of both the thrust and drag. The drag (or thrust required) depends on the density ...

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    • [PDF File] Golf Ball Flight Dynamics - Union College

      https://www.math.union.edu/~wangj/courses/previous/math238w13/Golf%20Ball%20Flight%20Dynamics2.pdf

      and drag will be the main areas of concern. A system of di erential equations will be interpreted from aerodynamics and drag to aid in the discussion. Speci cally, the magnus e ect and resistance due to ... 6.2 Flight Equations X F y = my00 = mg R(V y) X F x = mx00 = R(V x) X F z = mz00 = R(V z) Figure 3: Smooth Ball Projection 8. 7 Magnus Force

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