EFFECTS OF HOT-WIRE LENGTH AND LENGTH DIAMETER RATIO ON SPECTRAL ENERGY OF TURBULENCE

被引：6

作者：

AZAD, RS

机构：

[1] Dept. of Mech. and Ind. Eng., Manitoba Univ., Winnipeg, Man.

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1993年 / 4卷 / 03期

关键词：

D O I：

10.1088/0957-0233/4/3/023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hot-wires of different sensitive lengths and diameters have been used to obtain spectra of longitudinal velocity fluctuations at one location in a boundary layer and at three locations in a diffuser flow. These spectra reveal the energy containing regions more prominently. Further, they show spatial filtering of eddies smaller than the lengths of the hot-wires and also demonstrate the loss of energy due to heat conduction to supporting prongs, sheaths and platings. In conclusion this study gives a definite choice for the construction of the hot-wire that is most adequate to elicit the physical picture of turbulence.

引用

页码：405 / 410

页数：6

共 16 条

[1]

AZAD RS, 1989, EXP FLUIDS, V7, P81

[2]

AZAD RS, 1985, METR4 U MAN DEP MECH

[3] TURBULENCE MEASUREMENTS WITH INCLINED HOT WIRES .1. HEAT TRANSFER EXPERIMENTS WITH INCLINED HOT WIRE [J].