Nonlinear blade element-momentum analysis of Betz-Goldstein rotors

D. H. Wood, Valery Okulov

Research output: Contribution to journalJournal articleResearchpeer-review


•We analyze Betz-Goldstein (BG) rotors for maximum power at any tip speed ratio and number of blades.•We prove that Glauert's incorporation of tip loss in the blade torque and thrust equation are correct.•We show the nonlinear angular momentum terms can contribute 12% of the total torque.
Original languageEnglish
JournalRenewable Energy
Pages (from-to)542-549
Publication statusPublished - 2017


  • Wind turbine
  • Tip loss
  • Blade element analysis
  • Nonlinear contributions

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