This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Reconstruction of Periodic Pressure Fields from Point Measurements
Technical Paper
1999-01-0809
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A new method for processing data from time-accurate point measurements has been developed in order to investigate periodic elements of unsteady flow fields. The technique synchronizes the phase of measurements taken at different locations using a reference signal and collapses the spectral peak of interest onto a single frequency. The technique has been applied to data gathered using a time-accurate 5-hole probe behind a two dimensional body exhibiting vortex shedding. It has been possible to generate a sequence of instantaneous pressure and velocity fields which show the shedding of vorticity and total pressure loss to form a vortex street.
Recommended Content
Topic
Citation
Sims-Williams, D. and Dominy, R., "The Reconstruction of Periodic Pressure Fields from Point Measurements," SAE Technical Paper 1999-01-0809, 1999, https://doi.org/10.4271/1999-01-0809.Also In
References
- Goh, EK An Experimental Study into the Time-Dependent Characteristics of a Road Vehicle Wake Flow Department of Aeronautics, Imperial College London 1994
- Sims-Williams, DB Dominy, RG Experimental Investigation into Unsteadiness and Instability in Passenger Car Aerodynamics SAE Paper 980391 in Developments in Vehicle Aerodynamics (SAE SP-1318) 1998
- Sims-Williams, DB Dominy, RG The Validation and Application of a 5-hole Pressure Probe with Tubing Transfer Correction for Time-Accurate Measurements in Unsteady Flows Second MIRA International Conference on Vehicle Aerodynamics, Coventry 20-21 October 1998
- Bearman, PW Harvey, JK Stewart, JN Two and Three Component Velocity Measurements in a Wind Tunnel using PIV RAES Proceedings, Wind Tunnels and Wind Tunnel Test Techniques Cambridge, UK. 14-16 April 1997
- Dominy, RG Hodson, HP An Investigation of Factors Influencing the Calibration of 5-Hole Probes for 3-D Flow Measurements ASME Journal of Turbomachinery 115 513 518 1993
- Irwin, HPAH Cooper, KR Girard, R Correction of Distortion Effects Caused by Tubing Systems in Measurements of Fluctuating Pressures Journal of Industrial Aerodynamics 5 1979
- Hooper, JD Musgrove, AR Reynolds Stress, Mean Velocity, and Dynamic Static Pressure Measurement by a Four-Hole Pressure Probe Experimental Thermal and Fluid Science 15 375 383 1997
- Morkovin, MV Flow Around Circular Cylinder - A Kaleidoscope of Challenging Fluid Phenomena ASME Symposium on Fully Separated Flows 102 1964
- Gerrard, JH The Mechanics of the Formation Region of Vortices Behind Bluff Bodies Journal of Fluid Mechanics 25 401 413 1966
- Durao, DFG Heitor, MV Pereira, JFC A Laser Anemometry Study of Separated Flows Around a Square Obstacle Laser Anemometry in Fluid Mechanics III Adrian et al Lisbon, Portugal 1986
- Perry, AE Watmuff, JH The Phase-Averaged Large-Scale Structures in Three-Dimensional Turbulent Wakes Journal of Fluid Mechanics 103 33 51 1981
- Watmuff, JH Perry, AE Chong, MS A Flying Hot-Wire System Experiments in Fluids 1 63 71 1983
- Press, WH Teukolsky, SA Vetterling, WT Flannery, BP Numerical Recipes in Fortran second edition Cambridge University Press 1992
- He, L Time-Marching Calculations of Unsteady Flows, Blade Row Interaction and Flutter Von Karman Institute for Fluid Dynamics, Lecture Series 1996-05, Unsteady Flows in Turbomachines 1996