WATER TUNNEL DESIGN AND RELATED INSTRUMENTATION CONSIDERATIONS AND A SELECTED BIBLIOGRAPHY ON INCOMPRESSIBLE INTERNAL FLUID FLOW

This report presents the results of a state-ofthe-art survey on flow- tunnel design and related instrumentation for tunnels using water or liquid nitrogen as the working fluid. The scope of the survey is purposely narrowed by considerations of the proposed tunnel to be designed and built at NASA's George C. Marshall Space Flight Center (MSFC). Initial application of the proposed tunnel will include internal-fluid-flow studies of cryogenic fuel-system components or combinations thereof. Major considerations applicable to the principal components of the proposed tunnel are presented. Some specific recommendations are also presented for consideration by those who will undertake the actual design and operation of the proposed tunnel. Literature cited is listed at the end of the report for further detailed study. Many of these references are, in themselves, design studies for liquidflow tunnels or flow- tunnel sections. Also included is a selected bibliography on internal fluid flow, with a brief description of each. The categories included are pressure drop; flow patterns including curved flows, mixing, and flow measurement; visualization including flow modeling, cavitation, and transients; flow of cryogenic fluids; and two-phase flow.