One-dimensional Analysis of Impulse Turbine with Self-pitch-controlled Guide Vanes for Wave Power Conversion

[摘要] A classical one-dimensional analysis in turbomachinery was presented to estimateaerodynamic characteristics of an impulse turbine with self-pitch-controlled guide vaneswhich is proposed by the authors for ocean wave power conversion. With some simplifiedassumptions, the efficiency vs/flow-rate coefficient curves were calculated and comparedwith the experimental results both in a unidirectional steady flow condition and a sinusoidallyoscillating flow condition. The estimated results reveal a behavior of the actual characteristics curve of the turbine. Possibility of further improvement in efficiency was discussed from a viewpoint of specific speed and specific diameter.

[学科分类] 力学，机械学