NTRS - NASA Technical Reports Server

Back to Results
CARS Temperature Measurements in a Combustion-Heated Supersonic JetMeasurements were made in a combustion-heated supersonic axi-symmetric free jet from a nozzle with a diameter of 6.35 cm using dual-pump Coherent Anti-Stokes Raman Spectroscopy (CARS). The resulting mean and standard deviation temperature maps are presented. The temperature results show that the gas temperature on the centerline remains constant for approximately 5 nozzle diameters. As the heated gas mixes with the ambient air further downstream the mean temperature decreases. The standard deviation map shows evidence of the increase of turbulence in the shear layer as the jet proceeds downstream and mixes with the ambient air. The challenges of collecting data in a harsh environment are discussed along with influences to the data. The yield of the data collected is presented and possible improvements to the yield is presented are discussed.
Document ID
Document Type
Conference Paper
Tedder, S. A.
(College of William and Mary Hampton, VA, United States)
Danehy, P. M.
(NASA Langley Research Center Hampton, VA, United States)
Magnotti, G.
(George Washington Univ. Newport News, VA, United States)
Cutler, A. D.
(George Washington Univ. Newport News, VA, United States)
Date Acquired
August 24, 2013
Publication Date
January 5, 2009
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
AIAA Paper 2009-524
Meeting Information
47th AIAA Aerospace Sciences Meeting and Exhibit Including The New Horizons Forum and Aerospace Exposition(Orlando, FL)
Funding Number(s)
WBS: WBS 599489.
Distribution Limits
Public Use Permitted.
No Preview Available