Structural Pressures Developed During Fill of Complex Systems

Paper #:
  • 981735

Published:
  • 1998-07-13
Citation:
Navickas, J., Rivard, W., Porter, A., Rathgeber, K. et al., "Structural Pressures Developed During Fill of Complex Systems," SAE Technical Paper 981735, 1998, https://doi.org/10.4271/981735.
Pages:
11
Abstract:
Excessive impact pressures can develop when an evacuated system is filled with liquid. Such a process is usually highly chaotic, especially when the system geometry is complex. Available computational methods by themselves cannot provide the necessary answers. The International Space Station (ISS) heat exchanger has a complex flow system, and a synthesis of computational and experimental methods was necessary to design the system. The FLOW-NET two-phase flow program was used to determine the range of loss coefficients and the liquid-vapor interface mass and energy transfer that would fit the measured impact pressures. These loss coefficients could then be used to compute the impact pressures for a design configuration similar to the one tested at a range of operating conditions.
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