A Numerical Study of Forces in High-Speed Droplet Impact

被引：0

作者：

Patal, Monal ^{[1
]}

Viqueira-Moreira, Manuel ^{[1
]}

Brehm, Christoph ^{[1
]}

机构：

[1] Univ Maryland, Dept Aerosp Engn, College Pk, MD 20740 USA

来源：

AIAA AVIATION FORUM AND ASCEND 2024 | 2024年

关键词：

LIQUID-DROP; FLOW; SCHEMES;

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

High-speed droplet impact can be a serious threat to the structural integrity of flight vehicles, yet this problem lacks understanding. The forces exerted in high-speed droplet impacts have been rarely investigated, whilst forces in low-speed impacts are very well characterized. A five equation model based diffuse interface method is used to conduct three investigations: firstly, effect of equation of state, secondly, effect of Mach number, and thirdly, effect of two droplets in tandem impact. The results show that the equation of state affects the jet speed and the peak force, the force-time profiles for initial impact loading can be generalized across Mach numbers using water shock based reference time scale, and the second droplet in the tandem impact may apply a higher peak force than the first droplet.

引用

页数：20

共 57 条

[1] A five-equation model for the simulation of interfaces between compressible fluids [J].

Allaire, G ;

Clerc, S ;

Kokh, S .

JOURNAL OF COMPUTATIONAL PHYSICS, 2002, 181 (02) :577-616

[2]

Azouzi ME, 2013, NAT PHYS, V9, P38, DOI [10.1038/nphys2475, 10.1038/NPHYS2475]

[3] Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp [J].

Bell, Ian H. ;

Wronski, Jorrit ;

Quoilin, Sylvain ;

Lemort, Vincent .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (06) :2498-2508

[4]

Callen H. B., 1998, "Thermodynamics and an Introduction to Thermostatistics

[5] Drop Impact Dynamics: Impact Force and Stress Distributions [J].

Cheng, Xiang ;

Sun, Ting-Pi ;

Gordillo, Leonardo .

ANNUAL REVIEW OF FLUID MECHANICS, 2022, 54 :57-81

[6] Numerical investigations of two-phase finger-like instabilities [J].

Chiapolino, Alexandre ;

Saurel, Richard .

COMPUTERS & FLUIDS, 2020, 206

[7] A simple and fast phase transition relaxation solver for compressible multicomponent two-phase flows [J].

Chiapolino, Alexandre ;

Boivin, Pierre ;

Saurel, Richard .

COMPUTERS & FLUIDS, 2017, 150 :31-45

[8] HIGH-SPEED PHOTOGRAPHY OF SURFACE GEOMETRY-EFFECTS IN LIQUID SOLID IMPACT [J].

DEAR, JP ;

FIELD, JE .

JOURNAL OF APPLIED PHYSICS, 1988, 63 (04) :1015-1021

[9] High fidelity discontinuity-resolving reconstruction for compressible multiphase flows with moving interfaces [J].

Deng, Xi ;

Inaba, Satoshi ;

Xie, Bin ;

Shyue, Keh-Ming ;

Xiao, Feng .

JOURNAL OF COMPUTATIONAL PHYSICS, 2018, 371 :945-966

[10] A metastable limit for compressed liquid water [J].

Dolan, D. H. ;

Knudson, M. D. ;

Hall, C. A. ;

Deeney, C. .

NATURE PHYSICS, 2007, 3 (05) :339-342

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