ESDU AZ Index: PITPRD
 see also
 Aerodynamic Centre
 Airforce Coefficients
 Centre of Pressure
 Flutter Derivatives
 Pitching Moment Due To Acceleration in Heave (M_{w dot} or C_{Mα dot})
 Pitching Moment Due To Pitching (M_{q} or C_{mq})
 PitchingMomentCurve Slope (M_{W} or C_{mα})
 Trim
 Unsteady Aerodynamics
 WindTunnel Corrections for Wings
 Aerofoil Design to Optimise Using Multivariate Gradient Search and CFD Codes
 introduction to method, 99019
 Aerofoils
 comparison of results from VGK with experimental results, 96028
 estimation in viscous subsonic or transonic flow using VGK, 96028, 96029
 Aerofoils at Angle of Attack
 all highlift devices, 03017
 Aerofoils at Constant Angle of Attack
 variation with increasing high subsonic Mach number, 90008
 Aerofoils at Zero Angle of Attack
 effect of doubleslotted flaps, alone or with leadingedge highlift devices, 01013, 99014
 effect of leadingedge highlift devices, alone or with trailingedge flaps, 00029, 01013
 effect of plain flaps, alone or with leadingedge highlift devices, 01013, 98017
 effect of singleslotted flaps, alone or with leadingedge highlift devices, 01013, 99004
 effect of split flaps, alone or with leadingedge highlift devices, 01013, 98009
 effect of tripleslotted flaps, alone or with leadingedge highlift devices, 01013, 99014
 Aerofoils at Zero Lift
 in inviscid subsonic flow, 72024
 program to predict for lowdrag GUNACAseries, 99003
 program to predict minimum for subcritical speeds, 06020
 Aerofoils With Sealed Leading and/or TrailingEdge Controls or Flaps
 effect of deflection in subsonic or transonic flow, 01033, 96028, 96029
 Aircraft
 increment due to ground effect, 72023
 Biconvex Aerofoils, AERO W.S.00.03.04
 Bodies of General Cross Section
 elliptical, 05015
 square with corner rounding, 07005
 square without corner rounding, 04007
 triangular without corner rounding, 04007
 Controls
 variation with control deflection, AERO C.08.01.01
 Derivation of Pitching Moment Coefficient from Flight Test Data, TM 190
 DoubleWedge Aerofoils, AERO W.S.00.03.04
 Estimation of Nacelle and Flap Effects on LowSpeed Aerodynamic Centre and ZeroLift Pitching Moment of Transport Aircraft (TailOff), TM 200
 Flaps
 Flat Plates Inclined or Normal to Flow
 circular, 70015
 elliptical or semielliptical, 70015
 rectangular or square, 70015
 triangular, 70015
 ForebodyCylinders With BoatTailing
 incidences to 90? and Mach numbers to 5, 87033, 89014, 90034
 ForebodyCylinders Without BoatTailing
 incidences to 90? and Mach numbers to 5, 89014, 90034
 SharpEdged Delta, Cropped Delta and Rectangular Wings of Low Aspect Ratio
 in combination with axisymmetric body in supersonic flow to high angles of attack, 92043
 isolated in supersonic flow to high angles of attack, 90013
 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 threedimensional flow, 97025
 Single or ContraRotating Propellers at Low Forward Speeds
 due to local angle of sideslip, 89047
 Slender Wings
 increment due to ground effect, 71007
 in free air, 71006
 Viscous Fullpotential (VFP) Method for Three Dimensional Wings and Wingbody Combinations
 estimation of excrescence drag at subsonic speeds and analysis program, 23013
 WingFuselage Combination at Zero Lift
 estimation for cambered and twisted wings and approximately circularsection fuselage, 89042
 Wings
 increment due to split flaps with trailingedge forward of swept wing trailing edge, AERO F.08.01.02
 increment due to split flaps with trailingedge forward of unswept wing trailing edge, AERO F.08.01.01
 Wings at Angle of Attack
 all highlift devices, 03017
 Wings at Zero Angle of Attack With Full or PartSpan Flaps
 effect of drooped leadingedge, slats or sealed slats, 00029, 01013
 effect of Kruger, vented or unvented, 00029, 01013
 Wings at Zero Angle of Attack With Full or PartSpan LeadingEdge HighLift Devices
 effect of doubleslotted flaps, 01013, 99014
 effect of leadingedge highlift devices alone, 00029, 01013
 effect of plain flaps, 01013, 98017
 effect of singleslotted flaps, 01013, 99004
 effect of split flaps, 01013, 98009
 effect of tripleslotted flaps, 01013, 99014
 Wings at ZeroLift
 effect of Mach number, 87001
 effect of spanwise camber variation and twist, 87001
 Wings With Camber and Twist
 program for spanwise distribution in subsonic flow, 95010
 Wings With Camber, Twist and With Plain Leading and/or TrailingEdge Flaps Deflected
 program for spanwise distribution in subsonic flow, 95010
 see also
 PitchBreak (PitchUp or PitchDown)
 Aerofoils
 prediction of initial nonlinearity, 88030
 ForebodyCylinders With BoatTailing
 zero incidence and Mach numbers to 5, 87033, 89008
 ForebodyCylinders Without BoatTailing
 zero incidence and Mach numbers to 5, 89008
 Wings
 prediction of initial nonlinearity, 88030
 Wings or WingBody Combinations
 effect on pitchbreak characteristics, 01005
 Contribution Due to Body at Subsonic Speeds, 90010
 Contribution Due to Tailplane at Subsonic Speeds, 90010
 Contribution Due to Wing at Subsonic Speeds, 90010
 Contribution Due to Wing at Supersonic Speeds, AERO W.S.08.03.02
 Effect of Wing/Body Interference at Subsonic Speeds, 90010
 ForebodyCylinders at Low Incidence and Supersonic Speeds
 with or without boattailing or fins, 91004
 see
 Intakes
 Spillage Drag
 see also
 Anemometric Data Correction
 see also
 PitotStatic Probes
 Graphs of Total/Static Pressure Ratio in Supersonic Flow, AERO S.00.03.15
 Drag Increment Due to Chordwise and Spanwise Sealed or Unsealed Gaps
 undeflected at low speeds, 92039
 Effect of Deflection in Subsonic Flow of Leading and/or TrailingEdge
 on wing loading distribution, 95010
 Effect of Deflection in Subsonic or Transonic TwoDimensional Flow
 on drag, hinge and pitching moments, lift and pressure distribution, 01033
 on drag, lift, pitching moment and pressure distribution, 96028, 96029
 on shockinduced separation, 97030
 Effect on Maximum Lift of Wings, 91014
 Introduction to Data Items on Effect of HighLift Devices on Drag and Lift, 97002
 Lift Increment Due to Deployment on Aerofoils at Zero Angle of Attack
 alone or with leadingedge highlift devices, 94026, 94027, 94028
 Lift Increment Due to Deployment on Wings at Zero Angle of Attack
 alone or with leadingedge highlift devices, 96032, 97002, 97011
 MaximumLift Increment Due to Deployment on Aerofoils
 alone or with leadingedge highlift devices, 94026, 94027, 94028
 MaximumLift Increment Due to Deployment on Wings, 91014
 with leadingedge highlift devices, 92031
 Normal Force, AERO F.05.01.01
 Pitching Moment Increment Due to Deployment on Aerofoils and Wings
 alone or with leadingedge highlift devices, 01013, 03017, 98017
 Profile Drag Increment Due to Deployment on Wings, 06014, 87024, AERO F.02.01.07
 Trailing Vortex Drag Increment Due to Deployment on Cambered and Twisted or Plane Wings
 program for estimation for any flap and wing geometry, 01007
 tabulated values for selected flap and wing geometries, 01007
 see also
 Diffusers
 Flow Regimes for Turbulent or Laminar Entry Flow, 74015
 Geometrical Relationships, 74015
 Methods of Improving Performance, 87015
 Optimum Geometry for Maximum Pressure Recovery, 74015
 Static Pressure Recovery
 aspect ratio effects, 74015
 asymmetry effects, 74015
 geometry effects, 74015
 inlet boundary layer effects, 74015
 inlet turbulence effects, 74015
 roughness effects, 74015
 tailpipe effects, 74015
 Total Pressure Loss
 derivation from static pressure recovery, 74015
 with tailpipe, 74015
 Accumulation of rainfall on runway surfaces, 19005
 Parameters that effect planing
 effect of runway surface macrotexture depth on planing speed, 15003, 15009
 effect of tyre diameter on planing speed, 15003, 15009
 effect of tyre inflation pressure on planing speed, 15003, 15009
 effect of tyre width on planing speed, 15003, 15009
 effect of water depth on planing speed, 15003, 15009
 Partial Planing Speed, Complete Planing Speed, 15003
 Pressure Under Tyre Footprint, TM 211
 see
 Aluminium Alloys
 Beams in General
 Beams of Angle Section
 Beams of Any Hollow or Solid Polygonal Section
 Beams of Channel Section
 Beams of Circular Section
 Beams of ISection
 Beams of Rectangular Tubular Section
 Beams of TSection
 Beams of Unlipped ZSection
 Bonded Double or SingleLap Joints
 Bonded DoubleLap Joints
 Bonded SingleLap Joints
 Corrugated Plates
 Crack Propagation
 Cylinders of Circular Section (Strength and Vibration)
 Flange Buckling
 Flat Panels with Flanged Integral Stiffeners
 Flat Panels with Lipped or Unlipped ZSection Stiffeners
 Flat Panels with TopHat Section Stiffeners
 Flat Panels with TSection Integral Stiffeners
 Flat Panels with Unflanged Integral Stiffeners
 Flat Panels with Unlipped ZSection Stiffeners
 Flat Rectangular Plates
 Flat Sandwich Panels (Cores of Negligible Flexural Stiffness)
 Flat Sandwich Panels (Corrugated Cores)
 Flat Sandwich Panels (Isotropic Cores)
 Flat Strips of Isotropic Materials
 Materials Properties
 Steels
 Stress Concentration
 Stress Intensity Factors
 StressStrain Curves
 Struts in General
 Struts of Channel Section
 Struts of ISection
 Struts of Lipped or Unlipped ZSection
 Struts of Tubular Section
 see also
 Roughness
 Use as Cam Materials

 see
 Cams
 Use as Dry Rubbing Bearing Materials
 Use as Seal Materials
 see also
 Heat Exchangers
 Approximate Design of MultiStream Using Process Integration, 97006
 worked example comparing with use of a network of exchangers, 97006
 Cost Assessment Method Based on Active Volume Alone Using Volumetric Heat Transfer Coefficients
 film volumetric heat transfer coefficient for various fluids for use in calculation, 97006
 multistream up to six streams, 97006
 Detailed Cost Data for Various Fluids as Function of Heat Load for TwoStream Exchangers, 97006
 effect of change from aluminium to stainless steel, 97006
 effect of pressure, 97006
 effect of single or twophase fluids, 97006
 use in selection of heat exchanger type for given duty, 92013
 Typical Applications With Approximate Pressure and Temperature Ranges, 97006
 Typical Construction Details and Materials, 97006
 see also
 Heat Exchangers
 Detailed Cost Data for Various Fluids as Function of Heat Load and Operating Pressure, 95007
 comparison with shellandtube for comparable duty, 95007
 effect of changing from gasketed to semi welded, 95007
 effect of plate material and operating pressure, 95007
 effect of single or twophase fluids, 95007
 use in selection of heat exchanger type for given duty, 92013
 Thermal Effectiveness  NTU Method for Design and Performance Rating
 charts of thermal effectiveness in co or countercurrent flow, 98005
 effect of even or odd number of thermal plates, 98004, 98005
 maximum heat transfer effectiveness, 98005
 Aerodynamic and Flow Characteristics
 Endurance Under Acoustic Loading
 Heat Transfer
 Orifice

 see
 Orifices
 Perforated
 Stress Analysis

 see also
 Corner Section in SpeciallyOrthotropic Plates
 Corrugated Plates
 Curved Rectangular Plates
 Curved SpeciallyOrthotropic Rectangular Plates
 Curved Square Plates
 Flat Circular Plates
 Flat Panels in General
 Flat Parallelogram Panels
 Flat Parallelogram Plates
 Flat Plates Tapered in Plan
 Flat Rectangular Heated Plates
 Flat Rectangular Plates
 Flat Rectangular Plates Tapered in Thickness
 Flat Sandwich Panels (Cores of Negligible Flexural Stiffness)
 Flat Sandwich Panels (Corrugated Cores)
 Flat Sandwich Panels (Truss Cores)
 Flat SpeciallyOrthotropic Rectangular Plates
 Flat SpeciallyOrthotropic Square Plates
 Flat Square Plates
 Flat Square Plates with Central Circular Hole
 Flat Square Plates with Central Flanged Circular Hole
 Flat Strips of Isotropic Materials
 Flat Strips of Orthotropic Materials
 Flat Triangular Plates
 Flat Unbalanced Laminated Rectangular Plates
 Laminated Construction Using Composites
 Stresses At Free Edges
 Stress Concentration Data

 see
 Adjacent Circular Holes in Flat Plates
 Circular Holes in Bars or Strips
 Circular Holes in Flat Plates
 Circular Holes in Orthotropic Plates
 Countersunk Holes
 Elliptical Holes in Flat Plates
 Fillets in Bars or Strips
 Notches with Flat Bottoms in Bars or Strips
 Notches with Flat Bottoms in Edge of Plate
 Rectangular Holes in Flat Plates
 Reinforced Circular Holes in Flat Plates
 Reinforced Circular Holes Near Edge of Flat Plates
 Reinforced Elliptical Holes in Flat Plates
 Reinforced Square Holes with Rounded Corners in Flat Plates
 Reinforced Triangular Holes in Flat Plates
 Slots in Bars or Strips
 Square Holes with Rounded Corners in Flat Plates
 Stress Concentration
 Triangular Holes with Rounded Corners in Flat Plates
 UNotches in Bars or Strips
 UNotches in Edge of Plate
 Stress Intensity Factors
 Stress Response to Acoustic Loading
 Vibration

 see
 Curved Rectangular Plates
 Curved Sandwich Panels (Cores of Negligible Flexural Stiffness)
 Curved SpeciallyOrthotropic Rectangular Plates
 Curved Unbalanced Laminated Rectangular Plates
 Flat Panels in General
 Flat Rectangular Plates
 Flat Sandwich Panels (Cores of Negligible Flexural Stiffness)
 Flat SpeciallyOrthotropic Rectangular Plates
 Flat SpeciallyOrthotropic Square Plates
 Flat Square Plates
 Flat Unbalanced Laminated Rectangular Plates
 Noise
 Response of Lightweight Structures
 see
 Viscometers
 see also
 Temperature Measurement
 Advantages and Limitations, 02006, 06019
 Calibration and Hysteresis Effects, 06019
 Cost Relative to That of Other Temperature Measuring Techniques, 02006
 Methods of Measuring Resistance, 06019
 Possible Circuits, 06019
 Resistance/Temperature Relationships, 02006, 06019
 Response Times, 02006, 06019
 SelfHeating Effects, 06019
 Use in Measuring Bulk or Surface Temperature, 06019
 Various Types of Designs Available, 02006, 06019
 accuracy and temperature range, 02006, 06019
 dimensions, 06019
 see
 Lubricants
 Comparison of Physical Properties With Those of Ceramics and Metals, 84041
 Density, 84041
 Melting or Softening Temperature, 84041
 Poisson's Ratio, 78035, 84041, 85027, 94017, 96002
 Selection and Use for Dry Rubbing Bearings
 Thermal Conductivity and Expansion, and Specific Heat Capacity, 84041
 Use as Material to Provide Additional Structural Damping, 91012
 effects of frequency and temperature on loss factor and modulus, 91012, 92001
 variation of loss factor and modulus with frequency and temperature for specific, 92001
 Young's Modulus, 78035, 84041, 85027, 94017, 96002
 see
 Cams
 Curve Fitting
 see
 Lubricants
 see
 Lubricants
 Pressure Drop Across, 69022
 see also
 SelfContained Bearing Assemblies
 Solution by Finite Difference Techniques
 aerofoils in subsonic and transonic flow, 79009
 Definition, 71003
 Aircraft
 conditions for minimum, 81026
 estimation of effect of small changes on level speed, 86004
 estimation of effect of small changes on rate of climb, 94039
 Turbine Helicopters
 performance analysis to obtain requirement for hover, 73027
 performance analysis to obtain requirement for level speed, 74042
 see
 Random Processes
 Friction Law for HydraulicallySmooth Pipes, 66027
 Velocity Distribution on Aerofoils, 72025
 see
 SimpleWave Flow
 See under substance of interest