ESDU AZ Index: CONCQ
 Advantages and Limitations of Various Types
 coiled tube, 85022
 direct contact, 85022
 graphite, 85022
 plate and platefin, 85022
 shellside, horizontal or vertical, 85022
 tubeside, horizontal or vertical cocurrent flow, 85022
 tubeside, vertical countercurrent flow (reflux condenser), 85022
 Choice of Coolant in Process Plant Design, 85022
 Condensate SubCooling in Tubular Condenser, 85022
 Discussion of Cooling Curve, 85022
 Guide to Selection, 85022
 Notes on Condensing Process, 85022
 Operating Problems
 contamination or fouling, 85022
 corrosion, 85022
 draining or venting, 85022
 erosion, 85022
 fogging or freezing condensate, 85022
 parallelpath instability, 85022
 partload operation, 85022
 temperature pinch, 85022
 Calculation Procedure for Film Heat Transfer in Downward Vertical Annular Flow, 91024
 accuracy, 91024
 criterion for transition from annularmist to annular flow, 91024
 criterion for transition from annular to slug flow, 91024
 database of experimental results and discussion of data used, 91024
 local and mean coefficients, 91024
 treatment of desuperheating and subcooling, 91024
 Calculation Procedure for Film Heat Transfer in Horizontal Annular, Slug and Stratified Flows, 94041
 accuracy, 94041
 criterion for transition from annular to stratified flow, 94041
 criterion for transition to plug/slug flow, 94041
 effect of subcooling, 94041
 local coefficient, 94041
 provision of condensate drainage, 94041
 range of experimental data used to develop correlation, 94041
 use of multipass units, 94041
 Calculation Procedure for Pressure Drop in Downward Vertical Annular/Dispersed Flow, 90024
 accuracy as function of condensation number, density ratio (vapour/liquid) and quality, 90024
 application to condensers, 90024
 correction of predicted adiabatic pressure drop, 90024
 database of experimental results and discussion of data used, 90024
 program, 93014
 Calculation Procedure for Pressure Drop in Horizontal Annular/Dispersed Flow, 91023
 accuracy as function of condensation number, density ratio (vapour/liquid) and quality, 91023
 application to condensers, 91023
 correction of predicted adiabatic pressure drop, 91023
 database of experimental results and discussion of data used, 91023
 program, 93014
 Downflow Over a Single Tube or InLine or Staggered Tube Bundles
 calculation method for condensate mass and film heat transfer, 01009
 discussion of flow regimes, 01009
 effect of fin and tube geometry, 01009
 effect of fluid properties, 01009
 effect of material thermal conductivity, 01009
 effect of retained fluid between fins, 01009
 gravity or shearcontrolled flow, 01009
 range of experimental data used to develop calculation method, 01009
 see
 Viscometers
 Centre of Pressure and Pitching Moment With or Without Nose Blunting
 incidences to 90 degrees and Mach numbers to 5, 89014, 90034
 Lift Distribution and Pitching Moment
 oscillating in bending, heave or pitch, 83010
 NormalForceCurve Slope
 zero incidence and Mach numbers to 5, 89008
 Normal Force With or Without Nose Blunting
 incidences to 90? and Mach numbers to 5, 89014, 90034
 PitchingMomentCurve Slope
 zero incidence and Mach numbers to 5, 89008
 Pitching Moment Derivatives Due to Rate of Pitch and Acceleration in Heave
 low incidence at supersonic speeds, with or without boattailing and fins, 91004
 Planform Area and Its Centroid
 with or without truncation or nose blunting, 77028
 Sideforce at Mach Numbers Below 1.2 and Incidences Above 20 Degrees
 discussion of sources, 89014
 effect of Mach number and Reynolds number, 89014
 effect of nose blunting, 89014
 envelope of overall maximum with crossflow Mach number, 89014
 typical axial distribution, 89014
 Surface Area and Volume, Nose Angle or Radius of Curvature
 with or without truncation or nose blunting, 77028
 see
 Disc Springs
 Aerodynamic Characteristics at Zero Incidence in Subsonic or Transonic Flow
 normalforcecurve slope, 89008
 pitchingmomentcurve slope, 89008
 Aerodynamic Characteristics at Zero Incidence in Supersonic Flow
 flow deflection in conical flow field, 70009
 Mach number for surface sonic flow, 70008, 70009, AERO S.00.03.13
 Mach number in conical flow field and on surface, 70010
 normalforcecurve slope, 89008
 pitchingmomentcurve slope, 89008
 shock angle, 70008, AERO S.00.03.13
 shock detachment conditions, 70008, 70009, 70010, AERO S.00.03.16
 surface pressure, AERO S.00.03.13
 Heat Transfer Through Truncated

 see
 Heat Transfer
 With or Without Nose Truncation or Blunting
 planform area and its centroid, surface area and volume, 77028
 see
 Afterbody
 see
 Spillage Drag
 see also
 Diffusers
 Flow Regimes, 73024, 90025
 Geometrical Relationship
 area ratio, length and divergence angle, 73024, 90025
 Methods of Improving Performance, 87015
 Optimum Geometry for Maximum Pressure Recovery in Compressible Flow, 90025
 Optimum Geometry for Maximum Pressure Recovery in Incompressible Flow, 73024
 Static Pressure Recovery in Compressible Flow
 fairing of inlet/diffuser junction effects, 90025
 geometry effects, 90025
 inlet velocity profile shape effects, 90025
 Mach number effects (including approach to choking), 90025
 Reynolds number effects, 90025
 tailpipe effects, 90025
 turbulence effects, 90025
 upstream shock wave/boundary layer interaction effects, 90025
 Static Pressure Recovery in Incompressible Flow
 distributed roughness effects, 76027
 geometry effects, 73024
 inlet boundary layer effects, 73024
 inlet swirl effects, 76027
 tailpipe effects, 73024
 turbulence effects, 73024
 Total Pressure Loss
 approximate derivation from static pressure recovery in compressible flow, 90025
 derivation from static pressure recovery in incompressible flow, 73024
 with tailpipe in incompressible flow, 73024
 see
 Shock Waves
 see also
 Cams
 Geneva Mechanisms
 Determination of Film Thickness in Elastohydrodynamic Lubrication
 acceptable thickness for roughness of contacting components, 85027, 89045
 threedimensional (or point) contacts, 89045, 91038
 twodimensional (or line) contacts, 85027, 91037
 Effect of Type of Contact on Wear Mechanism, 86040
 NormallyLoaded Components
 calculation procedure for stresses anywhere on or within components, 85007
 contact area dimensions, 78035, 94034
 deflections, 78035, 94034
 depth of maximum shear stress below surface, 78035, 94034
 discussion of effect of roughness, 78035
 discussion of effect of tangential loading, 78035
 discussion of effect of thin films, 78035
 effect of circular, elliptical or rectangular contact area, 78035
 failure prediction in brittle or ductile materials, 84017, 85007, 94034
 graphs of maximum cyclic stress for fatigue failure prediction, 84017
 graphs of maximum tensile and equivalent shear stresses, 84017
 location of maximum range of orthogonal shear and its value, 94034
 location of maximum tensile and equivalent shear stresses and their values, 94034
 maximum shear stress below surface, 78035, 94034
 program for stresses anywhere on or within components, 94034
 stress distribution around contact area perimeter, 94034
 stress distribution over cross section or along line through contact volume, 94034
 surface stresses, 78035, 94034
 NormallyLoaded Components With Gross Sliding
 calculation procedure for stresses anywhere on or within components, 85007
 contact area, dimensions and orientation, 94034
 deflections, 94034
 directions of contact motion and sliding, 94034
 failure prediction in brittle or ductile materials, 84017, 85007, 94034
 graphs of maximum cyclic stress for fatigue failure prediction, 84017
 graphs of maximum tensile and equivalent shear stresses, 84017
 location of maximum range of orthogonal shear and its value, 94034
 location of maximum tensile and equivalent shear stresses and their values, 94034
 program for stresses anywhere on or within components, 94034
 stress distribution around contact area perimeter, 94034
 stress distribution over cross section or along line through contact volume, 94034
 Discussion of Effect on Drag of Mismatch of Control and Wing Profiles, 92039
 Effect of Deflection of Plain Trailing Edge
 on wing spanwise loading distribution in subsonic flow, 95010
 Guidance on Contribution to Excrescence Drag, 93032, 94044
 LiftCurve Slope in Supersonic Flow, AERO A.S.01.03.02
 Lift Variation With Control Deflection
 threedimensional flow, 74011, 74012
 Normal Force, AERO F.05.01.01
 Oscillating on an Aerofoil in Subsonic Flow
 effect on lift, pitching and hinge moments, and pressure distribution, 81034
 introduction to calculation of forces, moments and pressure, 82020
 Oscillating on an Aerofoil in Supersonic Flow
 effect on lift, pitching and hinge moments, and pressure distribution, 82005
 introduction to calculation of forces, moments and pressure, 82020
 Pitching Moment Variation With Control Deflection
 twodimensional flow, AERO C.08.01.01
 Spanwise Centre of Pressure in Supersonic Flow, AERO A.S.06.03.04
 see also
 Controls (Aerodynamic)
 Drag Increment Due to Chordwise and Spanwise Sealed Gaps
 example of calculation for leadingedge slat and spoiler, 93032
 undeflected at low speeds, 92039
 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
 Lift Variation With Control Deflection
 twodimensional flow, AERO C.01.01.03
 see also
 Controls (Aerodynamic)
 Discussion of Effect of Gaps on Wing Aerodynamic Characteristics, 92039
 Drag Increment Due to Chordwise and Spanwise Gaps
 example of calculation for aileron, 93032
 undeflected at low speeds, 92039
 Lift Variation With Control Deflection
 twodimensional flow, AERO C.01.01.04
 Analysis
 Assessment
 advantages and disadvantages of various methods, 81008
 selection of method, 81008
 Block Diagram Reduction and Equivalent Structures, 80018
 Controllers and Filters, 80018
 electrical and mechanical realisations, 80018
 Design Considerations, 80018, 81008
 Design of Digital Elements to Replace Analogue Elements
 aliasing and folding frequency, 92044
 Bode diagrams of gain and phase for various filters, 92044
 frequency response characteristics, 92044
 use of bilinear or impulse invariance transformation, 92044
 Design Using Various Assessment Methods
 Bode and root diagrams, 80018, 81008
 examples, 81040
 flowcharts, 81008
 Nyquist and inverse Nyquist, 81008
 Electrical Networks
 transfer functions for active or passive circuits, 85026
 Examples of Design in Practice
 aircraft autopilot height controller, 81040
 electromechanical instrument servo, 81040, 92044
 rotating apparatus, such as TV camera, position controller, 81040
 Feedback Shaping, 80018
 Function of Elements, 80018
 Mathematical Modelling of System to be Controlled, 80018
 example of position controller for rotating apparatus such as TV camera, 81040
 use of state equations, 80018
 Need to Model Sensor Behaviour, 80018
 Noise, 80018
 use of filters to minimise, 80018
 Pilot Interaction
 acceptable stick force and stick force gradient, 92006
 Resonance and Its Control, 80018
 Sensitivity of Modes to Change in System Parameters, 80018
 Servomechanisms of Various Types
 basic mathematical representation and transfer functions, 85026
 Synthesis
 using modal control or performance index, 80018
 Use of ZTransform to Analyse SampledData System

 see
 Ztransform
 Acceleration and Velocity, 81002
 Density, 81002, CF2, FMI1
 Dynamic Viscosity, 68036, 81002, CF2, FMI1
 Enthalpy, CF2
 Flow Rate, 81002, CF2, FMI1
 Force and Torque, 81002
 General, CFA, CFS
 Heat Flux, CF2
 Kinematic Viscosity, 68036, 81002
 Length and Volume, 81002
 Mass, 81002
 Polar Moment of Inertia, 81002
 Power, 81002
 Pressure and Stress, 80016, 81002, CF2, FMI1, PD1
 Specific Heat Capacity, FMI1
 Work, 81002
 Guidance on Contribution to Aircraft Drag, 94044
 Conservation and ReUse
 Fouling and Its Control
 Aircraft Handling Qualities, 92006
 Bearing, Torsion and Shear Strengths 00932 (MMDH)
 Composition of Specific Specifications 00932 (MMDH)
 Corrosion Resistance 00932 (MMDH)
 Density 00932 (MMDH)
 Elastic Modulus in Tension 00932 (MMDH), 94017
 Elastic Modulus of Rigidity 00932 (MMDH)
 Electrical Conductivity 00932 (MMDH)
 Elongation 00932 (MMDH)
 Exfoliation Corrosion Resistance 00932 (MMDH)
 Fracture Toughness 00932 (MMDH)
 Poisson's Ratio 00932 (MMDH), 94017
 Proof Stresses in Tension 00932 (MMDH)
 Specific Heat Capacity 00932 (MMDH)
 Stress Corrosion Resistance 00932 (MMDH)
 Tensile Strength 00932 (MMDH)
 Thermal Conductivity 00932 (MMDH)
 Thermal Expansion Coefficient 00932 (MMDH)
 Use as Hydrodynamic Bearing Materials
 guide to selection, 88018
 Weldability 00932 (MMDH)
 Yawed Rolling Unbraked Aircraft Tyre, 13007
 see
 Regression
 see also
 Corrosion Resistance
 Environment
 Effect of DryOut on, 85041
 Effect on Condenser Performance, 85022
 In Combustion Plant
 mechanisms involved in coal or oilfired, 92012
 In Cooling Water Systems
 chemical inhibiters, 88024
 factors affecting, 88024
 methods of control, 88024
 Of Hydrodynamic Bearing Materials
 conditions conducive to, 88018
 Relative Effect of Various Synthetic Lubricants, 94020
 see also
 Anodising
 Flexural Rigidities, 74022
 Formulae for Equivalent Flexural Stiffnesses, 02009
 Response to Dynamic Excitation by Treating as Equivalent Orthotropic Plate
 design curves for radiation efficiency averaged in onethird octanve bands, 02009
 program for averaged radiation efficiency, 02009
 use of averaged radiation efficiency to calculate sound radiation, 02009
 Under Shear
 effect on buckling of method of attaching corrugations, 74022
 local buckling stress for double and singlesided attachment, 74022
 overall buckling load and wave length, 74022
 plasticity effects on local buckling, 74022
 summary of experimental data, 74022
 Distribution of Stress Concentration Factor Along Bore in Plate
 loaded in tension or by outofplane bending, 93030
 Comparison of Use With Other Methods of Balancing Planar Linkages, 89043
 multiple weights to improve performance, 89043
 single weight on constant velocity crank, 89043
 Design Procedure for Complete Force Balancing MultiBar Linkages
 determination of masses and their locations, 89028
 Determination of Alignment and Mass of Rotating for Partial Balancing of Planar Linkages
 Lanchester Balancer and generalised Lanchester Balancer, 90007
 moment balancer, 90007
 single weight, 90007
 see also
 Statistical Energy Analysis
 At Oblique Angles of Incidence, 15010
 Averaged Coupling Loss Factors, 15010
 Beam to Plate, 15010
 Between a Plate and Cavity or Large Room, 15010
 equation for calculation from known plate radiation efficiency, 00002
 Equation for Connected Plates, 98020, 99009
 Experimental for Cylinder to Honeycomb Plate Junction, 15010
 Experimental for Plates at Right Angles, 15010
 For Beams and Plates in Terms of Transmission Efficiency, 15010
 For Plates at Right Angles, Intersecting Plates, Plates With Branch, 15010
 see also
 Nacelle
 Cowl Forebody and Afterbody Force Component, 16003
 Drag Estimation at Subsonic Speeds

 see also
 Spillage Drag
 drag rise Mach number, 81024
 profile drag component (contributions from forebody, cylindrical midbody, afterbody), 81024
 wave drag component, 81024
 Drag Force, 16003
 Estimation of Upwash, 90020
 Forecowl Pressure Force in Inviscid Flow at Zero Incidence
 variation with Mach number and mass flow ratio for NACA 1Series and modified profiles, 94014
 Forecowl Surface Pressure Distribution in Inviscid Flow at Zero Incidence
 variation with Mach number and mass flow ratio for NACA 1Series and modified profiles, 94015
 Forecowl Wave Drag in Inviscid Flow at Zero Incidence
 variation with Mach number and mass flow ratio for NACA 1Series and modified profiles, 94014
 NACA 1Series External Profile Coordinates and Internal Lip Geometry, 84004, 94013
 selection of realistic internal profile, 94013
 simple curve fit, 94013
 smoothed profile for computational fluid dynamics, 94013
 PreEntry Force in Inviscid Flow at Zero Incidence
 variation with Mach number and mass flow ratio for NACA 1Series and modified profiles, 94014
 Dynamic Viscosity
 typical values, 66024
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