Numerical simulations of Phan-Thien-Tanner viscoelastic fluid flows based on the SPH method

Xu, Xiaoyang; Cheng, Jie; Peng, Sai; Yu, Peng

doi:10.1016/j.enganabound.2023.11.020

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Cited by 3 publications

References 61 publications

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SPH simulations of non-isothermal viscoplastic free-surface flows incorporating Herschel-Bulkley-Papanastasiou model

Xu,

2025

Computers & Fluids

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SPH simulations of non-isothermal viscoplastic free-surface flows incorporating Herschel-Bulkley-Papanastasiou model

Xu,

2025

Computers & Fluids

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Impact of Fluid Rheology and Density Ratio in Droplet Collision: A Numerical Investigation

Kant,

Rajesh Reddy,

Banerjee

2024

Journal of Fluids Engineering

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This research delves into the intricate interplay of fluid rheology, characterized by the power-law model, and density ratio ρr=ρlρg in the context of droplet collision dynamics. The power-law index (n) is systematically varied within the range of 0.5 to 1.5, while the density ratio spans two orders of magnitude, ranging from 101-103. Comprehensive investigations are conducted across various impact parameters (B = 0 - 0.75) and Weber numbers (We = 40 - 160). A noteworthy finding is the cessation of droplet coalescence at elevated Weber numbers (We = 160), revealing a critical threshold beyond which coalescence is no longer sustained. The impact of fluid rheology on internal fluid flow dynamics within the complex droplet structure is substantial. The variation in viscous dissipation with (n) contributes to observable changes in the critical wavelength of the complex droplet rim structure, consequently influencing the size of child droplets. Furthermore, the density ratio is a pivotal factor influencing the deformation rate during collision events. A decrease in density ratio correlates with a reduction in the deformation ratio, shedding light on the significant role of density ratio in shaping the dynamics of droplet collisions.

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Three-Dimensional Sph Simulations of Transient Non-Isothermal Viscoelastic Injection Molding Process

Xu,

Tian,

Sun

2024

Preprint

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Numerical simulations of Phan-Thien-Tanner viscoelastic fluid flows based on the SPH method

Cited by 3 publications

References 61 publications

SPH simulations of non-isothermal viscoplastic free-surface flows incorporating Herschel-Bulkley-Papanastasiou model

SPH simulations of non-isothermal viscoplastic free-surface flows incorporating Herschel-Bulkley-Papanastasiou model

Impact of Fluid Rheology and Density Ratio in Droplet Collision: A Numerical Investigation

Three-Dimensional Sph Simulations of Transient Non-Isothermal Viscoelastic Injection Molding Process

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