Comparison of Velocity and Temperature Measurements in an MHD Topping Cycle Environment With Flow Field Model Calculations

W. W. WILSON Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

J. P. SINGH Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

F. Y. YUEH Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

L. E. BAUMAN Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

A. GEORGE Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

R. L. COOK Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Mississippi State, MS, 39762

J. J. LEE Energy Conversion Research and Development Programs, The University of Tennessee Space Institute, Tullahoma, TN, 37388

J. T. LINEBERRY Energy Conversion Research and Development Programs, The University of Tennessee Space Institute, Tullahoma, TN, 37388

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ABSTRACT

This paper reports measurements of velocity and temperature in the topping cycle environment found in the aerodynamic duct of the Coal-Fired Flow Facility (CFFF), Details of the measurement methods are given. Also, the measurements are compared with ideal thermodynamic expansion calculations and a multidimensional gas dynamic model of the velocity and temperature within the duct. Discussions of data analyses and numerical model simulations of the flow field within the CFFF supersonic aerodynamic duct are provided. The measured temperature and flow velocity are lower than expected and more representative of subsonic flow rather than supersonic flow. The possible origin of this result is discussed. These results and other measurements in the aerodynamic duct carried out since 1992 demonstrate that on-line optical plasma measurements can be made in the highly stressed, thermodynamic environment that is typical of that existing in a coal-fired MHD generator.

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Comparison of Velocity and Temperature Measurements in an MHD Topping Cycle Environment With Flow Field Model Calculations

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Comparison of Velocity and Temperature Measurements in an MHD Topping Cycle Environment With Flow Field Model Calculations

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