Detail publikace

Optimalizace difuzoru turbíny

MORAVEC, P. HLINÍK, J. RUDOLF, P.

Český název

Optimalizace difuzoru turbíny

Anglický název

Optimization of hydraulic turbine diffuser

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

Hydraulic turbine diffuser recovers pressure energy from residual kinetic energy on turbine runner outlet. Efficiency of this process is especially important for high specific speed turbines, where almost 50% of available head is utilized within diffuser. Magnitude of the coefficient of pressure recovery can be significantly influenced by designing its proper shape. Present paper focuses on mathematical shape optimization method coupled with CFD. First method is based on direct search Nelder-Mead algorithm, while the second method employs adjoint solver and morphing. Results obtained with both methods are discussed and their advantages/disadvantages summarized.

Český abstrakt

Článek je zaměřen na matematické tvarové optimalizační metody spjaté s CFD

Anglický abstrakt

Hydraulic turbine diffuser recovers pressure energy from residual kinetic energy on turbine runner outlet. Efficiency of this process is especially important for high specific speed turbines, where almost 50% of available head is utilized within diffuser. Magnitude of the coefficient of pressure recovery can be significantly influenced by designing its proper shape. Present paper focuses on mathematical shape optimization method coupled with CFD. First method is based on direct search Nelder-Mead algorithm, while the second method employs adjoint solver and morphing. Results obtained with both methods are discussed and their advantages/disadvantages summarized.

Klíčová slova česky

Optimalizace; difuzor; Nelder-Mead algoritmus; adjoint solver

Klíčová slova anglicky

Optimization; turbine diffuser; Nelder-Mead algorithm; adjoint solver

Vydáno

28.03.2016

Nakladatel

EDP Sciences

ISSN

2100-014X

Kniha

EPJ Web of Conferences

Ročník

114

Číslo

1

Strany od–do

1–7

Počet stran

7

BIBTEX


@inproceedings{BUT120730,
  author="Prokop {Moravec} and Juraj {Hliník} and Pavel {Rudolf},
  title="Optimization of hydraulic turbine diffuser",
  booktitle="EPJ Web of Conferences",
  year="2016",
  volume="114",
  number="1",
  month="March",
  pages="1--7",
  publisher="EDP Sciences",
  issn="2100-014X"
}