Laser Velocimeter Measurements and Analysis in Turbulent Flows with Combustion. Part 4. Two-Component Cold-Flow Measurements
Author: H. D. Thompson
Publisher:
Published: 1986
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKA unique two component, two color Laser doppler Velocimeter (LDV) has been designed and built. The system includes Bragg cell modulators in all four beams, and a correction lens system to correct for the aberration induced by the cylindrical quartz test section. A dedicated PDP 11/40 mini-computer with DMA capability is used for data collection, storage, and processing. Two component (axial and radial) velocity measurements have been made in the turbulent flow field following an axisymmetric sudden expansion. Mean streamwise and radial velocity and turbulence intensity measurements were made. Reynolds stresses were computed. Keywords: Turbulent measurements; Laser velocimeter; Bias errors; Recirculating flows.