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Taylor´s hypothesis. Erik Nilsson 120420. References :. Lumley and Panofsky 1964. Mizuno and Panofsky 1975. Horst and Lenschow 2009. 3 pages. 6 pages. 4 pages. U. Tower. A. beta. Distance X ab. X ab *cos (beta) is the streamwise separation distance. B. Tower.

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taylor s hypothesis

Taylor´shypothesis

Erik Nilsson 120420

references
References:

Lumley and Panofsky 1964

Mizuno and Panofsky 1975

Horst and Lenschow 2009

3 pages

6 pages

4 pages

slide3

U

Tower

A

beta

DistanceXab

Xab*cos(beta) is the streamwise separation distance

B

Tower

Ua is the eddyadvection speed whichadvects the turbulent elements.

It is equal to the meanwind speed U

when Taylors hypthesis is true

(Horst and Lenschow 2009)

some previous results
Somepreviousresults:

Ua is the eddyadvection speed whichadvects the turbulent elements.

It is equal to the meanwind speed U

when Taylors hypthesis is true

  • Advection speeds somewhatlargerthanmeanwind speed (in the mean, largescatter)
  • Largeeddies faster than small eddies (compareunstable and stableconditions)

Hypothesis:

  • TH morelikelytrue over sea with smallerhomogeneity problem?
  • Influence from surfacewaves:

Higheradvectionvelocityduringlargescalewave events (swell)?