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| 1 | Visualization Experiments of a Specific Fuel Flow Through Quartz-glass Tubes Under both Sub- and Supercritical Conditions显示文摘The present work is a visualization study of a typical kerosene (RP-3) flowing through vertical and horizontal quartz-glass tubes under both suband supercritical conditions by a high speed camera. The experiments are accomplished at temperatures of 300-730 K under pressures from 0.107-5 MPa. Six distinctive two-phase flow patterns are observed in upward flow and the critical point of RP-3 is identified as critical pressure pc=2.33 MPa and critical temperature Tc=645.04 K and it is found that when the fluid pressure exceeds 2.33 MPa the flow can be considered as a single phase flow. The critical opalescence phenomenon of RP-3 is observed when the temperature is between 643.16 K and 648.61 K and the pressure is between 2.308 MPa and 2.366 MPa. The region filled by the critical opalescence in the upward flow is clearly larger than that in the downward flow due to the interaction between the buoyancy force and fluid inertia. Morecover, obvious layered flow phenomenon is observed in horizontal flow under supercritical pressures due to the differences of gravity and density. | DENG Hongwu ZHANG Chunben XU Guoqiang TAO Zhi ZHU Kun WANG Yingjie | 2012 | Chinese Journal of Aeronautics2012，25，3： | 18 |
| 2 | Investigation of flow resistance characteristics of endothermic hydrocarbon fuel under supercritical pressures显示文摘The characteristics of flow resistance of a typical hydrocarbon fuel(RP-3)flowthrough adiabatic horizontal miniature tubes at supercritical pressures are experimentallyinvestigated for both laminar and turbulent flow.The experiments are conducted by using along tube measuring section and a short tube measuring section simultaneously in order toeliminate the effect of local pressure drop.In these experiments,the temperature of RP-3changes from(295 to 789)K and the reduced pressure(P/Pc,Pc=2.33 MPa)ranges from 1 to2.58,the mass flux is up to 1572.7 kg/(m^(2).s).Test results indicate that frictional pressuredrops for various supercritical pressures at the same mass flux can be considered as equalwith each other when the reduced temperature Tb/Tpc<0.95.When Tb/Tpc>0.95,differenceappears and increases with the increase of Tb/Tpc.Additionally,the friction factor(f)of thesupercritical fluid for turbulent flow has a critical value at Tb/Tpc=1,the values of f at thispoint for all pressures and mass fluxes are equal with each other.Moreover,at the same massflux,there are two comresponding friction factors for the same Re,one is in the region of Tb/Tpc<1,the other is in the region of Tb/Tpc> 1.Finally, classical conelations of frictionfactor is inapplicable when Tb/Tpc>0.95 at supercritical pressure and a new coelation hasbeen obtained based on the experimental data. | Chunben Zhang Guoqiang Xu Hongwu Deng Kun Zhu | 2013 | Propulsion and Power Research2013，2，2： | 6 |
| 3 | Experimental investigation on heat transfer of a specific fuel (RP-3) flows through downward tubes at supercritical pressure显示文摘 | Chunben Zhang Guoqiang Xu Lin Gao Zhi Tao Hongwu Deng Kun Zhu | 2012 | The Journal of Supercritical Fluids2012，，： | 1 |
| 4 | Density measurements of endothermic hydrocarbon fuel at sub-and supercritical conditions显示文摘 | DENG Hongwu ZHANG Chunben XU Guoqiang | 2011 | Journal of Chemical&Engineering Data2011，56，6： | 1 |
| 5 | Density measurements of endothermic hydrocarbon fuel at sub- and supercritical conditions显示文摘 | DENG Hongwu ZHANG Chunben XU Guoqiang | 2011 | Journal of Chemical and Engineering Data2011，56，6： | 1 |
| 6 | Density measurements of endothermic hydrocarbon fuel at sub-and super-critical conditions显示文摘 | DENG Hongwu ZHANG Chunben XU Guoqiang | 2011 | Journal of Chemical and Engineering Data2011，56，6： | 1 |
| 7 | Density measurements of endothermic hydrocarbon fuel at sub and supercritical conditions显示文摘 | DENG Hongwu ZHANG Chunben XU Guoqiang | 2011 | Journal of Chemical Engineering Data2011，56，6： | 1 |
| 8 | Viscosity measurements of endothermic hydrocarbon fuel from 298 to 788 K under supercritical pressure conditions 显示文摘 | DENG Hongwu ZHANG Chunben XU Guoqiang | 2012 | Journal of Chemical & Engineering Data2012，57，2： | 1 |
| 9 | Experi mental investigation on heat transfer of a specific fuel (RP- 3) flows through downward tubes at supercritical pressure 显示文摘 | ZHANG Chunben XU Guoqiang GAO Lin | 2012 | Journal of Supercritical Fluids2012，72，12： | 1 |
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