Validation of Heat Transfer Correlations in Line Chill-Down Tests of Cryogenic Fluid in SINDA/FLUINT

Sakowski, Barbara ; Hauser, Daniel M ; Hartwig, Jason W ; Kassemi, M

关键词: CORRELATION;    CRYOGENIC FLUIDS;    FINITE DIFFERENCE THEORY;    HEAT TRANSFER;    MULTIPHASE FLOW;    REYNOLDS NUMBER;    THERMAL ANALYSIS;    WALL TEMPERATURE;    COOLING;    FILM BOILING;    FLOW VELOCITY;    LIQUID HYDROGEN;    LIQUID NITROGEN;    RANGEFINDING;   

RP-ID  :  GRC-E-DAA-TN58389

学科分类：力学，机械学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Line Chill-down heat transfer was modelled using SINDA/FLUINT. Multiple chill-down tests were modelled using the heat transfer correlations that are available in SINDA/FLUINT, as well as incorporating heat transfer empiricisms developed by the University of Florida1 based on a series of liquid nitrogen chill-down tests. The chill-down tests that were modelled were the liquid nitrogen tests conducted by the University of Florida1 as well as liquid hydrogen tests conducted by NASA Glenn Research Center2. The liquid nitrogen tests included horizontal flow, upward flow, and downward flow with the liquid Reynolds Numbers ranging 850 - 231,000. The liquid hydrogen test was vertical upward flow at a Reynolds Number range of 18,400 - 433,000. Both the University of Florida's heat transfer correlations and SINDA/FLUINT's internal correlations faired similarly to wall temperature test data. They were acceptable although improvements could be made to the University of Florida correlations as well and SINDA/FLUINT's internal correlations.