Shock Hugoniot and equations of states of water, castor oil, and aqueous solutions of sodium chloride, sucrose and gelatin

Gojani, Ardian B.; Ohtani, Kiyonobu; Takayama, K.; Hosseini, Seyed Hamid

doi:10.1007/s00193-009-0195-9

Cited by 35 publications

(17 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with conductivity of 77 mS/cm. The use of saline water would be beneficial for medical application, because on using this method underwater shock waves can propagate in tissue with low reflection between the solution and tissue boundary owing to their similar acoustic impedances [18]. Fig.…”

Section: Methodsmentioning

confidence: 99%

Two Successive Shock Waves Generated by Underwater Pulse Electric Discharge for Medical Applications

Oshita

Hosseini

Mawatari

et al. 2014

IEEE Trans. Plasma Sci.

View full text Add to dashboard Cite

This paper reports on analysis of two different types successive underwater shock waves generated by a device incorporating a compact shock-wave generator with a magnetic pulsed compression circuit. To generate shock waves, underwater pulsed electric discharges in high-impedance saline water were used. The saline water made possible underwater shock waves propagation in tissue with low reflection between the solution and tissue boundary, owing to their similar acoustic impedances. A cylindrical electrode holder and a semiellipsoidal shock-wave focusing reflector/generator were used in this paper. The diameter of the compact shock-wave reflector was 20 mm. Two kinds of successive underwater shock waves, one generated by electric discharge plasma expansion and the other by bubble collapse, were observed. The shock waves were studied by time-resolve high-speed visualization and direct pressure measurement using a fiber optic probe hydrophone pressure transducer. The former method elucidated propagation of underwater shock waves and behavior and collapse of the bubble near the electrodes, while the later measured two kinds of underwater shock waves pressures at different voltage amplitudes using the cylindrical electrode holder and the shock focusing generator. This paper clearly shows the importance of the secondary shock waves, their control, and damping, for effective and safe medical application of shock waves.

show abstract

Section: Methodsmentioning

confidence: 99%

Two Successive Shock Waves Generated by Underwater Pulse Electric Discharge for Medical Applications

Oshita

Hosseini

Mawatari

et al. 2014

IEEE Trans. Plasma Sci.

View full text Add to dashboard Cite

show abstract

“…For air, π ∞ = 0 Pa, and the stiffened gas EOS reduces to the ideal gas law with γ as the specific heat ratio. The fitting parameters for water are based on the shock Hugoniot data of Gojani et al (2016), following the fitting procedure described in Johnsen (2007). Within the diffuse interface region, mixture rules must be defined for the properties of fluid mixtures.…”

Section: Equation Of Statementioning

confidence: 99%

Numerical simulation of the aerobreakup of a water droplet

2017

View full text Add to dashboard Cite

We present a three-dimensional numerical simulation of the aerobreakup of a spherical water droplet in the flow behind a normal shock wave. The droplet and surrounding gas flow are simulated using the compressible multicomponent Euler equations in a finite-volume scheme with shock and interface capturing. The aerobreakup process is compared with available experimental visualizations. Features of the droplet deformation and breakup in the stripping breakup regime, as well as descriptions of the surrounding gas flow, are discussed. Analyses of observed surface instabilities and a Fourier decomposition of the flow field reveal asymmetrical azimuthal modulations and broadband instability growth that result in chaotic flow within the wake region.

show abstract

“…Two, for water, which we are interested in modeling with the stiffened gas EOS, authors utilizing the database have obtained fitting parameters that result in a physically incorrect sound speed at ambient conditions, see for example [9, 22, 27, 43]. We resolve both of these issues by using the shockwave Hugoniot data of Gojani et al [47]. For materials of interest, the stiffened gas EOS parameters fitted from the latter, along with the density and sound speed, are listed in Table 1.…”

Section: Governing Equationsmentioning

confidence: 99%

Finite-volume WENO scheme for viscous compressible multicomponent flows

Coralic¹,

Colonius²

2014

Journal of Computational Physics

195

239

View full text Add to dashboard Cite

We develop a shock- and interface-capturing numerical method that is suitable for the simulation of multicomponent flows governed by the compressible Navier-Stokes equations. The numerical method is high-order accurate in smooth regions of the flow, discretely conserves the mass of each component, as well as the total momentum and energy, and is oscillation-free, i.e. it does not introduce spurious oscillations at the locations of shockwaves and/or material interfaces. The method is of Godunov-type and utilizes a fifth-order, finite-volume, weighted essentially non-oscillatory (WENO) scheme for the spatial reconstruction and a Harten-Lax-van Leer contact (HLLC) approximate Riemann solver to upwind the fluxes. A third-order total variation diminishing (TVD) Runge-Kutta (RK) algorithm is employed to march the solution in time. The derivation is generalized to three dimensions and nonuniform Cartesian grids. A two-point, fourth-order, Gaussian quadrature rule is utilized to build the spatial averages of the reconstructed variables inside the cells, as well as at cell boundaries. The algorithm is therefore fourth-order accurate in space and third-order accurate in time in smooth regions of the flow. We corroborate the properties of our numerical method by considering several challenging one-, two- and three-dimensional test cases, the most complex of which is the asymmetric collapse of an air bubble submerged in a cylindrical water cavity that is embedded in 10% gelatin.

show abstract

Shock Hugoniot and equations of states of water, castor oil, and aqueous solutions of sodium chloride, sucrose and gelatin

Cited by 35 publications

References 8 publications

Two Successive Shock Waves Generated by Underwater Pulse Electric Discharge for Medical Applications

Two Successive Shock Waves Generated by Underwater Pulse Electric Discharge for Medical Applications

Numerical simulation of the aerobreakup of a water droplet

Finite-volume WENO scheme for viscous compressible multicomponent flows

Contact Info

Product

Resources

About