Modified variable mass incompressible SPH method for simulating internal fluid flows

Farhadi, Asghar; Emdad, Homayoun; Rad, Ebrahim Goshtasbi; Ordoubadi, Mani

doi:10.1007/s40430-015-0457-7

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…The solution to this equation guarantees the exact incompressibility. ISPH method is proved to be more spatially stable, accurate, and computationally e cient [24][25][26], while WCSPH is very simple to program and requires no solution to an elliptical partial di erential equation. WCSPH method is used in this study since the lower accuracy of the pressure eld is not of any major consequence for the surface tension simulations conducted.…”

Section: Governing Equationsmentioning

confidence: 99%

Surface tension simulation of free surface flows using smoothed particle hydrodynamics

2017

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Abstract. SPH method is one of the most used numerical mesh-free methods in CFD simulations which can easily model problems with free surfaces. Considering the importance of surface tension in most engineering applications and the capability of SPH method in simulating free surfaces, a single-phase method for implementing surface tension is introduced in this study. Unlike time-consuming multi-phase simulations, this method does not need to model the second lighter uid, which reduces the CPU-time and memory requirements substantially. Mirror imaginary particles are used near the free surface to obtain surface properties such as surface normal vector and curvature, which are required in surface tension calculation. The advantages of using these imaginary particles are explained qualitatively through the use of some examples of droplet dynamics. This method is applied to several benchmark problems in surface tension simulations, and acceptable results are obtained.

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Section: Governing Equationsmentioning

confidence: 99%

Surface tension simulation of free surface flows using smoothed particle hydrodynamics

2017

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“…There are some other methods by which the blood flow (containing or without cells) and elastic solid can be simulated. They can be lattice Boltzmann method [18,19] and smoothed particle hydrodynamics (SPH) [20,21]. Modeling and simulation of cardiac assist devices using CFD and FSI have improved the design and performance of the cardiac assist devices.…”

Section: Introductionmentioning

confidence: 99%

Calculating the aortic valve force and generated power by a specific cardiac assist device (AVICENA) in different counterpulsation

Alizadeh

Rahmani

Tehrani

2018

J Braz. Soc. Mech. Sci. Eng.

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AVICENA is a specific cardiac assist device which is used in the cases with left ventricular failure and implanted in the aorta that can pump the blood flow with more strength into the circulatory system. Although this device can increase the power of blood flow by its inflation and deflation, it may apply some extra force to the aortic valve while working in the heart. This study aims at investigating these amounts of generated power and aortic valve force in different patterns of device counterpulsation using FSI. In this study, only six different displacement factor curves applied to the balloon as well as only one boundary condition applied to the inlet and outlet of the aorta are considered. The outcome of this study helps to improve the design of this device in a way that it may produce more power and less force on the aortic valve.

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Incompressible SPH simulation of landslide impulse-generated water waves

2016

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Modified variable mass incompressible SPH method for simulating internal fluid flows

Cited by 5 publications

References 39 publications

Surface tension simulation of free surface flows using smoothed particle hydrodynamics

Surface tension simulation of free surface flows using smoothed particle hydrodynamics

Calculating the aortic valve force and generated power by a specific cardiac assist device (AVICENA) in different counterpulsation

Incompressible SPH simulation of landslide impulse-generated water waves

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