Simple methods for low speed calibration of hot-wire anemometers

被引：30

作者：

Ozahi, Emrah ^{[1
]}

Carpinlioglu, Melda Ozdinc ^{[1
]}

Gundogdu, Mehmet Yasar ^{[1
]}

机构：

[1] Gaziantep Univ, Fac Engn, Dept Mech Engn, TR-27310 Gaziantep, Turkey

来源：

FLOW MEASUREMENT AND INSTRUMENTATION | 2010年 / 21卷 / 02期

关键词：

Hot-wire anemometer; Calibration; Low speed;

D O I：

10.1016/j.flowmeasinst.2010.02.004

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents two calibration methods for a CTA probe valid at low speeds covering a range of 0.029 m/s <= U <= 1.79 m/s. The well-known in situ calibration method using a simple laminar pipe-flow set-up was used for a mean Re number range of 25 <= Re <= 1590. The rotating disc method is the proposed calibration method in the speed range of 0.05 m/s <= U <= 1.05 m/s. Both calibration methods were compared and found to be in conformity with each other in a maximum error margin of +/- 7%. Therefore derived calibration equation in the form of modified King's Law with corresponding values of the parameters; A = 2.676. B = 0.749 and n = 0.75 can be utilized at speeds as low as 0.029 m/s with sufficient accuracy. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：166 / 170

页数：5

共 21 条

[1] Low speed calibration of hot-wire anemometers
Al-Garni, Abdullah M.
[J]. FLOW MEASUREMENT AND INSTRUMENTATION, 2007, 18 (02) : 95 - 98
[2] [Anonymous], 1975, TURBULENCE
[3] AYDIN M, 1980, DISA INFORM, V25, P17
[4] Bradshaw Peter., 1964, PROG AEROSP SCI, V5, P1, DOI DOI 10.1016/0376-0421(64)90003-X
[5] BRUUN HH, 1989, EXP FLUIDS, V7, P400
[6] VELOCITY CALIBRATION RELATIONSHIPS FOR HOT-WIRE ANEMOMETRY
BRUUN, HH
KHAN, MA
ALKAYIEM, HH
FARDAD, AA
[J]. JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1988, 21 (02): : 225 - 232
[7] Bruun HH., 1995, Hot-Wire Anemometry, Principles and Signal Analysis
[8] HOT-WIRE ANEMOMETER BEHAVIOR IN LOW VELOCITY AIR-FLOW
CHRISTMAN, PJ
PODZIMEK, J
[J]. JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1981, 14 (01): : 46 - 51
[9] Calibration of hot wire for low speed measurements
Chua, LP
Li, HS
Zhang, H
[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2000, 27 (04) : 507 - 516
[10] Durst F, 2008, EXP FLUIDS, V44, P189, DOI 10.1007/S00348-007-0390-3

← 1 2 3 →