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The fluid dynamic basis for actuator disc and rotor theories / Gijs van Kuik.

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Format:
Book
Author/Creator:
Kuik, Gijs van, 1951- author.
Contributor:
ProQuest ebook central
Language:
English
Subjects (All):
Fluid dynamics.
Actuators.
Rotors.
Physical Description:
1 online resource
Edition:
Revised second edition.
Place of Publication:
Amsterdam, Netherlands : IOS Press, 2022.
Contents:
Intro
Title Page
Preface
Reading guide
Acknowledgement
Nomenclature
More than a century of rotor research
Introduction
History of the actuator disc momentum theory
The British School
The German and Russian School
The contribution of Joukowsky and Betz to the vortex theory of propellers
The Betz-Joukowsky limit for wind turbines
From actuator disc to rotor aerodynamics
Why this book?
Force fields in fluid dynamics
The equation of motion and the coordinate systems
Equivalence of the kinematic and dynamic methods
Conservative and non-conservative force fields
Force fields and energy
Work done by force fields
Choice of reference system
Work done by non-conservative force fields
Pressure as a conservative force in momentum balances
Pressure interpreted as potential energy
Definition of (non-)conservative forces as used in this book
Evaluation
Force fields and vorticity
The role of Helmholtz's conservation laws
Generation of actuator disc vorticity
Convection of actuator disc vorticity
Convection of rotor vorticity
Evaluation
The disc as representation of a rotor
Loads and power of a Joukowsky disc and rotor
The actuator disc equation
The rotor blade
Power and thrust coefficients for Joukowsky discs / rotors
The transition from a B-bladed rotor to the Joukowsky disc
Comparison of the flow fields of a disc and rotor
Analysis of Froude's actuator disc flows
One-dimensional momentum theory
The momentum balance
Momentum theory without conservative forces
Momentum theory including conservative forces, applied to a stream annulus
Numerical assessment of Froude's actuator disc performance
The model and accuracy of computation
Comparison of calculated performance with momentum theory results
Comparison with experimental results
Flow details
Flow and pressure patterns
Properties of the wake boundary
Pressure and velocity at the disc
Pressure at the axis
Analysis of Joukowsky's actuator disc flows
Two-dimensional momentum theory
The equations for a Joukowsky disc
The disc load
The far wake outside the vortex core
The vortex core
The momentum, mass and energy balance
Limit values of the Joukowsky momentum theory
Results for , 0.
Propeller discs with a wake of constant radius or with wake expansion
The static disc or disc in hover
The maximum efficiency of a wind turbine disc
The efficiency of propeller discs
Numerical assessment of flow details
The numerical model
Comparison of wind turbine and propeller discs at =1
Comparison of a wind turbine and propeller disc with similar wake expansion
The role of swirl and conservative pressure distributions
Notes:
Includes bibliographical references and index.
Electronic reproduction. Ann Arbor, MI Available via World Wide Web.
Online resource; title from PDF title page (IOS Press, viewed July 18, 2022).
Other Format:
Print version: van Kuik, G. A. M. The Fluid Dynamic Basis for Actuator Disc and Rotor Theories
ISBN:
9781643682792
1643682792
Publisher Number:
99993745212
Access Restriction:
Restricted for use by site license.

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