Numerična določitev integralne karakteristike tri-lopatične vetrne turbine

magistrsko delo

Marko Pezdevšek (Author), Gorazd Hren (Mentor), Matej Fike (Co-mentor)

Abstract

Namen zaključnega dela je numerično analizirati integralne karakteristike tri-lopatične vetrne turbine. Da bi preverili vpliv modela turbulentnega toka na integralne karakteristike, so bile izvedene 2D stacionarne simulacije aerodinamičnega profila NREL S826 za različne napadne kote. Dobljene koeficiente vzgona in upora smo primerjali z eksperimentalnimi rezultati iz literature. Pri 3D simulacijah vetrne turbine je bila kreirana blokovna strukturirana mreža, kjer smo pri mreženju področja blizu lopatice kot referenco uporabili mrežo iz 2D simulacij. Izvedene so bile stacionarne simulacije za vrtljaje vetrne turbine od 100 vrt/min do 2300 vrt/min. Koeficienta moči in aksialne sile smo nato primerjali z eksperimentalnimi rezultati iz literature. Ugotovljeno je bilo dobro ujemanje poteka koeficienta moči, medtem ko je bil koeficient aksialne sile konstantno nižji skozi celotno območje vrtljajev.

Keywords

vetrne turbine;numerične simulacije;Ansys;SolidWorks;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.09 - Master's Thesis
Organization:	UM FE - Faculty of Energetics
Publisher:	[M. Pezdevšek]
UDC:	621.548.4:004.925:519.876.5(043.3)
COBISS:	1024214108
Views:	1496
Downloads:	189
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Numerical prediction of integral characteristics for three bladed wind turbine
Secondary abstract:	The purpose of this study is to numerically analyze integral characteristics of a three-bladed wind turbine. To investigate the effect of different turbulent models on the integral characteristics a 2D steady state simulation of the NREL S826 airfoil was carried out. For various angles of attack lift and drag coefficients were acquired and compared with experimental results from literature. A block structured mesh was designed in the 3D wind turbine simulations, where the density in the region near the blade was replicated from the 2D studies. Steady state simulations were done for revolutions varying from 100 rpm to 2300 rpm. Power and thrust coefficients were acquired and compared with experimental results from literature. The results showed good agreement for the power coefficient curve, whereas the thrust coefficient curve was under-predicted for all calculation points.
Secondary keywords:	Wind turbines;numerical simulations;Ansys;SolidWorks;
URN:	URN:SI:UM:
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fakulteta za energetiko
Pages:	XIV, 75 f.
ID:	8966382