Propeller wake flowfield analysis by means of LDV phase sampling techniques

被引：52

作者：

Stella, A

Guj, G

Di Felice, F

机构：

[1] Univ Roma Tre, Dipartimento Ingn Meccan & Ind, I-00146 Rome, Italy

[2] Univ Rome La Sapienza, Dipartimento Meccan & Aeronaut, I-00184 Rome, Italy

[3] INSEAN Italian Naval Basin, I-00128 Rome, Italy

来源：

EXPERIMENTS IN FLUIDS | 2000年 / 28卷 / 01期

关键词：

Data Acquisition; Measurement Time; Acquisition Time; Flow Region; Angular Position;

D O I：

10.1007/s003480050001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Two phase sampling techniques are developed for the analysis of the propellers wake by means of LDV. The first one (TTT) uses the detection of Doppler signal as trigger condition; each LDV sample, tagged with the blade angular position at the measurement time, is arranged inside angular slots. The other technique (ATT) follows an angular triggering method, with some enhancements to reduce measurement time. The implemented techniques are complementary from the accuracy and efficiency point of view. The TTT enables to quickly analyze the propellers wake, in view of the minimization of data acquisition time, particularly in poor flow seeding conditions. The ATT is instead suitable for accurate investigations of space-limited and highly turbulent flow regions.

引用

页码：1 / 10

页数：10