ESDU A-Z Index: DIH-DZ
- Full Span
- contribution to rolling moment due to rolling, 85006
- contribution to rolling moment due to sideslip, 00025, AERO A.06.01.03
- contribution to rolling moment due to yawing, 72021
- contribution to yawing moment and sideforce due to rolling, 85006
- Part Span
- contribution to rolling moment due to sideslip, 00025, AERO A.06.01.09
- see also
- Dynamical Similarity
- Demonstration of Technique, 73026
- see also
- Heat Pipes
- Density
- pressure and temperature variation for saturated gas and liquid, 80017
- Dynamic Viscosity
- pressure and temperature variation for saturated gas and liquid, 80017
- temperature variation in liquid state, 66024
- Kinematic Viscosity
- temperature variation in liquid state, 66024
- Specific Heat Capacity
- pressure and temperature variation for saturated liquid, 80017
- Specific Latent Heat of Vaporisation
- pressure and temperature variation at saturation, 80017
- Surface Tension
- pressure and temperature variation at saturation, 80017
- Thermal Conductivity
- pressure and temperature variation for saturated liquid, 80017
- Vapour Pressure
- pressure and temperature variation at saturation, 80017
- Definitions in Aircraft Dynamics, 67037
- see
- Spoilers
- Compressible Flow Through Orifices
- cylindrical tube or plate, 82009
- Compressible Flow Through Perforated Plates, 82009
- Steady, Spatially Non-Uniform Axial Compressible Flow Using Thermodynamically-Rigorous Approach
- definition for calorically-perfect gas, 95011
- definition for thermally-perfect gas, 97029
- Fatigue Strength of Steel
- effect of initial load, 80004
- effect of presetting, 80004
- location of failure, 80004
- Single Spring With Load Acting on Faces or Inside Edges
- load-deflection characteristics, 78043
- maximum stress, 78043
- resilience, 78043
- stiffness, 78043
- stress at any perimeter, 78043
- typical stress distribution across washer, 78043
- Stacks (Irregular, Nested or Regular)
- effect of friction and methods of minimising, 79010
- load-deflection characteristics, 79010
- stiffness, 79010
- see
- Disc Springs
- Pressure Drop Across, 66030
- see also
- Water
- see
- Statistics
- Pressure Under Tyre Footprint on Wet Surface, TM 211
- Change in Observed Frequency of Noise Due to Aircraft Velocity, 02020
- see also
- Slotted Flaps
- Contribution to Airframe Noise, 90023
- see also
- Heat Exchangers
- see
- Slotted Flaps
- Aerofoils
- aerodynamic centre, lift, lift-curve slope, pitching moment and wave drag, AERO W.S.00.03.04
- Dynamic Response to Turbulence and Wind
- Mean Forces and Moments Due to Wind or Other Fluid Flows
- Wings
- wave drag, 71018, 75004
- Average Angle at Tailplane in Attached Flow in Free Air With Flaps Deployed
- effect of compressibility, 97021
- effects of flap, tail and wing geometry, 97021
- increment due to flap deflection, 97021
- Average Angle at Tailplane in Attached Flow in Free Air With Flaps Undeployed
- effect of compressibility, 80020
- effect of nacelles, 80020
- effects of tail and wing geometry, 80020
- values at zero lift, 80020
- Example of Procedure in Calculation of Effects of Propeller Slipstream on Horizontal Tailplane Flow-field, TM 193
- Increment in Angle Due to Ground Effect, 72023
- Induced Angle of Attack Due to (Section 4.7), 73012
- Mean angle of downwash at tailplane, change of downwash at tailplane, 15001, TM 190
- Wind-tunnel measurement of average downwash angle at the tailplane (Section 7.1.2), 97021
- see also
- Base Drag (without Blowing or Jet Efflux)
- Base Drag with Central Propulsive Jet
- Boundary Layer Lift Dependent Drag
- Cavities
- Excrescences
- Impingement Drag
- Inoperative Engine
- Interference Wave Drag
- Intrinsic Momentum Drag
- Leading-Edge Suction
- Leaks
- Lift Dependent Drag
- Longitudinal Force
- Magnification of Excrescence Drag By Pressure Gradient
- One-Dimensional Flow
- Optimum Wave Drag
- Pre-Entry Drag
- Pressure Drag
- Profile Drag
- Skin Friction Drag
- Spillage Drag
- Standard Momentum Drag
- Trailing Vortex Drag
- Wave Drag
- Windmilling Engines
- Windmilling Propellers
- Aerofoil Design for Minimum (Multivariable Gradient Search Using CFD Codes)
- example optimising camber line shape and high-lift device deflections, 99021
- example optimising camber line shape or high-lift device deflections, 99020
- example optimising high-lift device deflections on combat aircraft section, 00022, 00023
- example optimising surface shape and high-lift device deflections, 01024
- introduction to method, 99019
- Aerofoils
- bibliography of data at high subsonic speeds TD Memo. 6407 (Catalogue 1)
- calculation using viscous-coupled method near separation at transonic speeds, 92008
- comparison of results from VGK with results from other theories and experiment, 96028
- comparisons against RAE 5225 aerofoil for program in 2D mode, 13013
- design of GUNACA-series for low drag over a range of lift coefficient, 99003
- effect of leading- or trailing-edge sealed control or flap deflection, 96028, 96029
- estimation at supersonic speeds, AERO W.S.00.03.03, AERO W.S.00.03.05
- estimation in viscous subsonic or transonic flow using VGK, 96028, 96029
- estimation of minimum for cambered or uncambered with fixed transition, 00027
- geometric and inviscid flow characteristics of some NACA 6-series designed for low drag, 99003
- program to predict minimum for subcritical speeds, 06020
- Aircraft
- conditions for minimum, 81026
- discussion of factors affecting, 81026
- increment due to ground effect, 72023
- representation by simple law for performance calculations, 81026
- trim due to inoperative engine or other asymmetry, 88006
- variation with Mach number and lift for typical aircraft, 81026
- Aircraft Tyres Running in Slush or Water
-
- see also
- Skin Friction Drag
- aircraft tests on water-covered runways, TM 165, TM 192
- fluid drag force under tyre footprint, TM 211
- multiple tyre undercarriage, 11004
- single tyre, 05011, 10015
- Braking Parachutes, 85029
- Compatibility of Definition With Thrust Definition
- propeller-powered aircraft, 85015, 85017
- turbo-fan and turbo-jet powered aircraft, 69006, 81024, 84004
- Concept and Preliminary Design Examples of Applying Rapid Aerodynamic Analysis Tools to Three Classic Historical Configurations Designed to Similar Requirements, TM 207
- Conical or Blunted Conical Forebodies in Supersonic Flow
- foredrag, 68021
- Cowls
- estimation at subsonic speeds, 81024
- Estimation by Consideration of Component Contributions
- choice and use of datum conditions, 97016
- examples of possible component break downs, 97016
- longitudinal trim drag and choice of datum, 97016
- profile drag and contributions to it, 97016
- propulsion system contributions, 97016
- sources of data in ESDU Data Items, 97016
- trailing vortex drag, 97016
- various methodologies, 97016
- wave drag, 97016
- Estimation of Effect of Small Changes on Level Speed, 86004
- Estimation of Effect of Small Changes on Rate Of Climb, 94039
- Flaps
- Flush Intakes
- NACA convergent-divergent planform, 86002
- rectangular planform, 03006, 86002
- Introduction to Data Items on Effect of High-Lift Devices on, 97002
- Propeller Slipstream Effects on
- check list of contributory components, 85017
- discussion of applicability of method for predicting increment on body, 86017
- discussion of buoyancy and local velocity increments, 85015, 85017
- estimation of increment on body with pusher or tractor propeller, 86017
- Scoop Intakes Immersed in Boundary Layer
- with or without boundary layer diverter, 86002
- Similarity Laws at Subsonic or Supersonic Speeds
- applied to coefficient in axisymmetric flow, 97025
- Similarity Laws at Subsonic, Supersonic or Transonic Speeds
- applied to coefficient in two- or three-dimensional flow, 97025
- Slender Wings
- increment due to ground effect, 71007
- Spoiler (Perforated or Solid) Deflected at Low Speed in Free Air
- estimation of induced and profile contributions, 96026
- Spoiler (Solid) Deflected at Low Speed in Ground Effect
- estimation of increment due to, 76026
- Thrust-drag Accounting From Flight Test Data, 16003
- Two Staggered Lifting Surfaces Trimmed With Given Static Margin
- program for calculation, 81023
- Vane Vortex Generators to Control Shock-Induced Separation
- consideration of contribution with worked example for co-rotating, 93024
- Viscous Full-potential (VFP) Method for Three Dimensional Wings and Wing-body Combinations
- estimation of excrescence drag at subsonic speeds and analysis program, 23013
- Wings
- calculation of contributions of typical excrescences (and fit/sealing) on transport aircraft, 93032
- increment due to underwing efflux interference, 82034
- M151 forward-swept wing, 13013
- relative importance of typical excrescences (and fit/sealing) on transport aircraft, 93032
- use of simple sweep rules in drag estimation, 97016
- use of strip theory in drag estimation, 97016
- validation against RAE Model W4, 13013
- validation of sectional drag against swept-panel model, 13013
- Supercritical TD Memo. 6407
- see also
- Drag-Rise Mach Number
- Aerofoils
- discussion of origins, 90008
- Transonic
- rectangular wings, AERO W.S.02.03.09
- zero lift, AERO A.02.03.02, AERO A.S.02.03.01
- Aerofoils
- method of estimation TD Memo. 6407
- Aerofoils Designed for Given Values, 71020
- influence of design parameters, 71020
- Aerofoils With Roof-Top Pressure Distribution
- adaptation of charts to three-dimensions, 72027
- charts and design principles, 71019
- Aerofoils With Supercritical Pressure Distribution, 78010
- Bumpy or Smooth Bodies of Revolution With or Without Fins
- method of estimation, 74013
- Cowls
- estimation, 81024
- Advantages and Limitations of Various Materials
- carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
- Choice of Proportions, 87007
- Comparison of Load/Speed Performance With That of Alternative Bearing Types, 87007
- Database of Materials Properties, 96015
- use of alternative databases in materials selection program, 96015
- Dynamic Friction Coefficient for Various Materials, 87007
- sketches of typical behaviour with load and speed, 89044
- Effect of Intermittent Operation on Material Choice, 87007
- Estimation of Bearing Life and Wear Rate for Various Materials, 87007, 96015
- Estimation of Bedding-In Wear, 87007
- Estimation of Clearance Necessary
- effect of temperature and water absorption, 87007
- Estimation of Rubbing Surface Temperature, 87007
- Installation, 87007
- Materials Manufacturers and Relative Materials Costs, 87007
- Materials Properties
- carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
- Mating Materials and Requirements for Their Surface Finish, 87007
- Maximum Rubbing Speed and Temperature Capability for Various Materials, 87007
- Permissible Pressure/Temperature Performance of Various Materials, 87007
- Program for Material Selection or Performance Analysis of Known Material, 96015
- Resistance to Specific Environments of Various Materials
- acid, alkali, oil, radiation, vacuum, water, 87007
- Selection Procedure for Best Material in Given Application, 96015
- carbon, polymer, thermoset, solid lubricant impregnated metal, 87007
- Thermal Conductivity of Various Materials, 87007
- Shear Centre, STRUCT 00.06.05
- Wave Drag
-
- see
- Cowls
- Failure Prediction in Loaded Contacts, 84017, 85007
- Yielding Criteria
- three-dimensional stress systems, 73004
- two-dimensional stress systems, 73004, STRUCT 02.00.00
- Flow in
- Linings to Reduce Noise
- Sound Radiation From Open End
- Fatigue Crack Propagation Rate
-
- see also
- Crack Propagation
- characteristic slopes of plots against stress intensity factor, 84003
- effect of alloy composition, 84003
- effect of heat treatment, 84003
- effect of mean stress (or stress ratio), 84003
- Approximate Solution, 83024
- comparison with full solution for particular aircraft, 83024
- Discussion of Desirable Characteristics
- for good aircraft handling qualities, 92006
- Discussion of Origin and Characteristics, 86021
- Effect of Control Augmentation, 83024
- Effect of Idealised Yaw Damper, 83024
- Requirements for Minimum Values of Damping and Frequency
- for military aircraft handling, according to aircraft class and flight phase, 92006
- Effect of Elasticity on Acceleration Due to Gusts
- simple treatment, 69023
- Definition, AERO S.00.03.06
- see
- Aerodynamic Loading
- Ailerons
- Attitude Angles
- Axes Systems in Aircraft Dynamics and Performance
- Control Systems
- Direction Angles
- Dutch Roll
- Dynamic Stability
- Equations of Motion
- Handling Qualities
- Incidence Angles
- Lateral Stability and Response
- Linear Systems
- Longitudinal Stability and Response
- Non-Linear Systems
- Notation
- Parameter Identification
- Rolling
- Rudder
- Sampled-Data Systems
- Static Aeroelasticity
- Conversion Factors, 68036, 81002, CF2, FMI1
- Liquids
- effect of pressure and temperature on, 68036
- general discussion, 68036
- Typical Values for Mineral Oils, 71003, 85027, 89045, 94017, 94020
- Typical Values for Petroleum Products, 71003
- effect of pressure, 71003
- Typical Values for Synthetic Lubricants, 85027, 89045, 94020
- Typical Values of Pressure Exponent for Mineral and Synthetic Lubricants, 85027, 89045, 94020