Water hammer in a spacecraft propellant feed system

Prickett, R. P.; Mayer, E.; Hermel, J.

doi:10.2514/6.1988-2920

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…The problem of pressure surges in propulsion feedline with entrapped air in liquid carrier has also been investigated by many researchers. In Prickett et al ’s study (1992), a series of experimental studies were reported on tests to determine the effects of water hammer in pipe networks. In Lin and Bakers study (1995), testing conducted in the feed system priming process was reported.…”

Section: Introductionmentioning

confidence: 99%

An adaptive approach for prediction of propellant feedline dynamics in fluid network

Ravindran

Majumdar

2018

HFF

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Purpose This paper aims to propose an adaptive unstructured finite volume procedure for efficient prediction of propellant feedline dynamics in fluid network. Design/methodology/approach The adaptive strategy is based on feedback control of errors defined by changes in key variables in two subsequent time steps. Findings As an evaluation of the proposed approach, two feedline dynamics problems are formulated and solved. First problem involves prediction of pressure surges in a pipeline that has entrapped air and the second is a conjugate heat transfer problem involving prediction of chill down of cryogenic transfer line. Numerical predictions with the adaptive strategy are compared with available experimental data and are found to be in good agreement. The adaptive strategy is found to be efficient and robust for predicting feedline dynamics in flow network at reduced CPU time. Originality/value This study uses an adaptive reduced-order network modeling approach for fluid network.

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Section: Introductionmentioning

confidence: 99%

An adaptive approach for prediction of propellant feedline dynamics in fluid network

Ravindran

Majumdar

2018

HFF

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“…However, except for a few, not much study have been done in the area of priming, in particularly for priming in a flow network containing numerous flow components. Prickett et al [6] have done some testing of priming problem in straight pipe as well as in a flow network using water as a reference fluid. They have also compared their test data with simplified analytical model.…”

Section: Introductionmentioning

confidence: 99%

“…The objective of the current study is to use a finite volume based network flow solver by solving relevant governing equations to simulate the problem of priming to completely evacuated line as well as presence of low pressure air downstream of the valve. The numerical results are tested with data available from the measurement data of Prickett et al [6].…”

Section: Introductionmentioning

confidence: 99%

Fluid Transient Analysis during Priming of Evacuated Line

Bandyopadhyay

Majumdar

Holt

2017

53rd AIAA/SAE/ASEE Joint Propulsion Conference

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Water hammer analysis in pipe lines, in particularly during priming into evacuated lines is important for the design of spacecraft and other in-space application. In the current study, a finite volume network flow analysis code is used for modeling three different geometrical configurations: the first two being straight pipe, one with atmospheric air and other with evacuated line, and the third case is a representation of a complex flow network system. The numerical results show very good agreement qualitatively and quantitatively with measured data available in the literature. The peak pressure and impact time in case of straight pipe priming in evacuated line shows excellent agreement.

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Surge Pressure Mitigation in the Global Precipitation Measurement Mission Core Propulsion System

Scroggins¹,

Fiebig²

2014

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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The Global Precipitation Measurement (GPM) mission is an international partnership between NASA and JAXA whose Core spacecraft performs cutting-edge measurements of rainfall and snowfall worldwide and unifies data gathered by a network of precipitation measurement satellites. The Core spacecraft's propulsion system is a blowdown monopropellant system with an initial hydrazine load of 545 kg in a single composite overwrapped propellant tank. At launch, the propulsion system contained propellant in the tank and manifold tubes upstream of the latch valves, with low-pressure helium gas in the manifold tubes downstream of the latch valves. The system had a relatively high beginningof-life pressure and long downstream manifold lines; these factors created conditions that were conducive to high surge pressures. This paper discusses the GPM project's approach to surge mitigation in the propulsion system design. The paper describes the surge testing program and results, with discussions of specific difficulties encountered. Based on the results of surge testing and pressure drop analyses, a unique configuration of cavitating venturis was chosen to mitigate surge while minimizing pressure losses during thruster maneuvers. This paper concludes with a discussion of overall lessons learned with surge pressure testing for NASA Goddard spacecraft programs.

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Water hammer in a spacecraft propellant feed system

Cited by 6 publications

References 1 publication

An adaptive approach for prediction of propellant feedline dynamics in fluid network

An adaptive approach for prediction of propellant feedline dynamics in fluid network

Fluid Transient Analysis during Priming of Evacuated Line

Surge Pressure Mitigation in the Global Precipitation Measurement Mission Core Propulsion System

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