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Advanced Experimental Techniques In Turbomachinery

The modern worker often finds the process of information documentation, storage and retrieval
to be overwhelming. The task of remaining current in a technical discipline is almost a full time
occupation, in addition to the daily responsibility of contributing to progress in a technical field. The
material in this volume has been selected from principal lectures provided by key contributors to
the turbomachinery field. Each chapter in this book has been prepared in close collaboration with
the original author. Extensive editing has been carried out to ensure a readable and accurate text.
The intent of this text is to make available the key material collected by recognized lecturers for
the general usage in industry. Since the authors of the various chapters are key experts in their
field, these chapters should serve as appropriate starting points for thought by many readers.
Advanced Experimental Techniques for
Turbomachinery Development (D. Echardt)
Introductory Survey
Time-Averaging Measurement Techniques
Development and Text Experiences with
Dynamic Non-Optical Measurement Systems
Typical Combined Applications of Stationary
and Dynamic Measurement Systems
Optical Methods for Flow Visualization and
Measurement
L2F Velocimeter Applications
Pressure and Velocity Measurements
(T.R. Heidrick)
Pressure Measurements

- Introduction
- Basic Instruments for Pressure Measurement
and Calibration

Velocity Measurement

- Introduction
- Measurement of Velocities of Known Direction
(Pitot Tubes)
- Measurement of Velocities of Unknown Direction
- Flow Direction Measurements (Yaw Probes)

Advanced High Frequency Measurements


System Measurements
Successes in the Application of Laser
Velocimetry to Turbo-machinery Studies
(H. Krain, R. Schodl, A. Binder, R. Dunker)
Nomenclature
Introduction
Principles of Laser Velocimetry
Unsteady Flow Phenomena in a Turbine Rotor
Revealed by L2F Measurement Techniques
Transonic Axial Compressor Flow Characteristics Analyzed by L2F Measurements
Results of L2F Measurements within a
Centrifugal Compressor Stage
Blade Pressure Measurements
(J.W.H. Chivers)
Introduction
Rotating Miniature Pressure Transducers
Pressure Pineapple
Rotating Scanivalve

Advanced Experimental
Techniques In Turbomachinery
David Japikse (Editor)

$50.00 Paperback
ISBN: 0-933283-01-6

- General Description of Measurement System


Dynamics
- Pressure Measurements
- Non-Steady Velocity Measurements
- Non-Steady Temperature Measurement
- Laser Velocity Measurement in Unsteady Flows
- Flow Visualization
- Clearance Measurements

Measurement of Metal Temperature, Heat


Flux, and Strain

- Durability Related Parameters in the Gas Path of


a Gas Turbine Engine - An Introduction
- Metal Temperature Measurement
- Heat Flux Measurement
- Strain Measurement and Analysis

Solving 100 Turbomachinery Fluid Dynamic


Test Problems (D. Japikse)
Developing a Test Program: A Useful OverThermocouple Theory and Practice
view
(R.J. Moffat)
Safety
Introduction
Test Procedures and Setup
Temperature - EMF Relationships
Flow Rate Measurement
Circuits of Homogenous Material
Speed Measurement
The Laws of Thermoelectricity
Heat Loss and Heat Inflow
Where is the EMF Generated?
Thermometry
Switches, Connectors, Zone Boxes, and
Pressure Measurement
State-of- the-Art Gas Turbine Measurement
Reference Baths
Leak Detection
Obtaining High Accuracy with Thermocouples Techniques (W.G. Alwang)
Traversing
Measurement of Steady State Fluid Dynamic
Parallel Elements
Proximity Measurements
Quantities
Sources of Spurious EMFs
Thermodynamic Properties
- Introduction
Instrumentation Procedures
- Overview - Steady State
Standards for Turbomachinery Laboratory
Data Processing/Accuracy
Measurements
Work (D. Japikse)
- Steady State Fluid Dynamic Quantities Measured Flow Visualization
Developing a Test Program - A Useful Overview
Torque Measurement
Measurement of Non-Steady Fluid Dynamic
Conventional Testing and Instrumentation Computer Usage
Quantities
Practical Testing with Microcomputers and
Dynamic Measurement
- Introduction
Microprocessors
The Design, Development and Operation of
Gas Turbine Radio Telemetry Systems
(J.G.B. Worthy)
The Requirement for Radio Telemetry in Aero
Gas Turbine Development
Constraints on the Measure System
Design of Rolls-Royce Telemetry Systems
Performance in Service
Future Work

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