Analysis of a kite anemometer. Final report
Equations of motion for a rigid, tailless kite and tether system are derived from free body diagrams. A direct, analytical solution of these equations provides tether tension in a steady wind. Numerical solutions of linearized equations of motion provide the kite tether tension in a transient, turbulent wind field. A similar analysis is applied to a kite-tail-tether system. The results of these analyses show that line tension at the ground anchor is within a few percent of tether tension at the kite. Wind shear does not significantly affect line tension. Thus the tethered kite anemometer can measure height-dependent wind fields based on steady-state, uniform wind calibrations. Unsteady winds also have an insignificant effect on the tether if gust amplitude and frequency are such that tether accelerations are below 9.8m/s/sup 2/. In a variable wind, tether tension is in phase with wind variations. Tension amplitude is dependent on the magnitude and frequency of wind variations.
- Research Organization:
- FWG Associates, Inc., Tullahoma, TN (USA)
- DOE Contract Number:
- AC06-76ET20242
- OSTI ID:
- 5417476
- Report Number(s):
- DOE/ET/20242-81/2; ON: DE82009058
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tethersonde and kite anemometer evaluation
Turbulence measured by anemometers, kites and turbine blade strain
Site A1 - Cup Anemometer / Reviewed Data
Technical Report
·
Sat Oct 01 00:00:00 EDT 1988
·
OSTI ID:6884455
Turbulence measured by anemometers, kites and turbine blade strain
Journal Article
·
Sun Oct 31 23:00:00 EST 1993
· Journal of Solar Energy Engineering
·
OSTI ID:143937
Site A1 - Cup Anemometer / Reviewed Data
Dataset
·
Tue Jun 24 00:00:00 EDT 2025
·
OSTI ID:2550556