Airfoil Lift Calculation Using Wind Tunnel Wall Pressures

  title={Airfoil Lift Calculation Using Wind Tunnel Wall Pressures},
  author={Sreevishnu Oruganti and Shreyas Narsipur},
  journal={AIAA Scitech 2020 Forum},
An experimental method to calculate lift using static pressure ports on the wind tunnel walls and its associated limits has been explored in this paper. While the wall-pressure measurement (WPM) technique for lift calculation has been implemented by other researchers, there is a lack of literature on the sensitivity of the WPM method to test section size, airfoil chord, and model thickness. Chord sensitivity studies showed that the airfoil chord plays an important role in the accuracy of the… 

Subsonic wall interference corrections for half-model tests using sparse wall pressure data

A method is described for correcting subsonic wind tunnel measurements on halfmodels in ventilated test sections, operated at subcritical flow conditions at the walls. For perforated walls, the

Wind tunnel aerodynamic tests of six airfoils for use on small wind turbines

This paper presents detailed wind tunnel tests data taken on six airfoils having application to small wind turbines. In particular, lift, drag and moment measurements were taken at Reynolds numbers

Components of a Wind Tunnel Balance: Design and Calibration

This chapter starts with a general description of wind tunnel balances, and shows which are the critical points that make wind Tunnel balances such a special and complex hardware.

Two-Dimensional Low-Reynolds Number Wind Tunnel Results for Airfoil NACA 0018

The two-dimensional characteristics of airfoil NACA 0018 have been measured for Reynolds numbers between 0.15×106 and 1.0×106 to establish the lift, drag and moment curves that serve as input to

Estimation of tunnel blockage from wall pressure signatures: A review and data correlation

A method is described for estimating low speed wind tunnel blockage, including model volume, bubble separation and viscous wake effects. A tunnel-centerline, source/sink distribution is derived from

Dynamic lift measurements on a FX79W151A airfoil via pressure distribution on the wind tunnel walls

We report on an experimental setup for measurements of dynamic stall for airfoils via the pressure distribution over wind tunnel walls. This measuring technique, hitherto used for lift measurements

Calculation of tunnel wall interference from wall-pressure measurements

Summary A method is described for calculating wall interference in solid-wall wind tunnels from measurements of static pressures at the walls. Since it does not require a simulation of the model

Rectangular-Wind-Tunnel Blocking Corrections Using the Velocity-Ratio Method

Abstract : In this report calculations of the ratios of the velocity increments at test bodies to those at the tunnel walls caused by the solid blocking of these bodies within the walls of a closed

Parametric study of separation and transition characteristics over an airfoil at low Reynolds numbers

Time-resolved surface pressure measurements are used to experimentally investigate characteristics of separation and transition over a NACA 0018 airfoil for the relatively wide range of chord