You need JavaScript to view this

On the measurement of inflow velocity and inflow angles with a spheric probe

Technical Report:

Abstract

For a spheric probe with five measuring points on its surface, the magnitude and the direction of the inflow velocity is a function of three pressure coefficients. These inflow quantities can therefore be determined by measuring the pressure coefficients. Wind tunnel tests of such a probe revealed that there is a linear relation between the measured and the theoretical value of the inflow quantities, provided that the geometric base angle is not too large and the effective base angle is determined experimentally. The base angle defines the position of the measuring points. If the resolution of the pressure measurements is not sufficient, these relations must be used as calibration lines. 21 figs., 2 tabs., 4 appendices, 8 refs.
Authors:
Publication Date:
Jun 01, 1993
Product Type:
Technical Report
Report Number:
ECN-R-93-005
Reference Number:
SCA: 170602; PA: ECN-93:0E0922; EDB-94:017886; NTS-94:008519; ERA-19:006547; SN: 94001127499
Resource Relation:
Other Information: DN: This work is part of the `field rotor-aerodynamics` project funded by the Netherlands Ministry of Economic Affairs. The main body of the work was performed in the second quarter of 1992, and the first quarter of 1993.; PBD: Jun 1993
Subject:
17 WIND ENERGY; ROTORS; TURBULENT FLOW; PROBES; SPHERICAL CONFIGURATION; AERODYNAMICS; HORIZONTAL AXIS TURBINES; VELOCITY; PRESSURE COEFFICIENT; EXPERIMENTAL DATA; THEORETICAL DATA; WIND TUNNELS; PRESSURE MEASUREMENT; 170602; TURBINE DESIGN AND OPERATION
OSTI ID:
10115940
Research Organizations:
Netherlands Energy Research Foundation (ECN), Petten (Netherlands)
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Other: ON: DE94729810; CNN: Project ECN 4240.01; TRN: NL93E0922
Availability:
OSTI; NTIS; Available from the library of the Netherlands Energy Research Foundation (ECN), P.O. Box 1, 1755 ZG Petten (Netherlands)
Submitting Site:
ECN
Size:
58 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Brand, A J. On the measurement of inflow velocity and inflow angles with a spheric probe. Netherlands: N. p., 1993. Web.
Brand, A J. On the measurement of inflow velocity and inflow angles with a spheric probe. Netherlands.
Brand, A J. 1993. "On the measurement of inflow velocity and inflow angles with a spheric probe." Netherlands.
@misc{etde_10115940,
title = {On the measurement of inflow velocity and inflow angles with a spheric probe}
author = {Brand, A J}
abstractNote = {For a spheric probe with five measuring points on its surface, the magnitude and the direction of the inflow velocity is a function of three pressure coefficients. These inflow quantities can therefore be determined by measuring the pressure coefficients. Wind tunnel tests of such a probe revealed that there is a linear relation between the measured and the theoretical value of the inflow quantities, provided that the geometric base angle is not too large and the effective base angle is determined experimentally. The base angle defines the position of the measuring points. If the resolution of the pressure measurements is not sufficient, these relations must be used as calibration lines. 21 figs., 2 tabs., 4 appendices, 8 refs.}
place = {Netherlands}
year = {1993}
month = {Jun}
}