Development of a two-phase SPH model for sediment laden flows

Shi, Huabin; Yu, Xiping; Dalrymple, Robert A.

doi:10.1016/j.cpc.2017.08.024

Cited by 62 publications

(55 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, one more equation is required to complete the model. The equation of state proposed by Shi et al (2017) is used to relate the fluid pressure p f in the solid-liquid mixture to the variable fluid density, shown as…”

Section: Two-phase Continuum Model Based On the Smoothed Particle Hydmentioning

confidence: 99%

See 1 more Smart Citation

A theoretical formulation of dilatation/contraction for continuum modelling of granular flows

Shi

Dong

et al. 2021

J. Fluid Mech.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Two-phase Continuum Model Based On the Smoothed Particle Hydmentioning

confidence: 99%

“…Here, for brevity, we only give a minimum description of the model. Detailed derivation of the equations and numerical implementations of the model can be found in Shi, Yu & Dalrymple (2017) and Shi et al. (2019).…”

Section: Numerical Validations By Simulations Of Submerged Granular Column Collapsementioning

confidence: 99%

A theoretical formulation of dilatation/contraction for continuum modelling of granular flows

Shi

Dong

et al. 2021

J. Fluid Mech.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The maximum velocity u max in this work is defined as u max = 2gh (where h is the still water depth). GPUSPH has been successfully used to investigate a series of topics in the fields of coastal and hydraulic engineering, such as tsunami-structure interaction (Wei et al, 2015;, two-phase sediment laden flows (Shi et al, 2017), and vorticity generation and 3D nearshore circulation under short-crested wave breaking (Wei et al, 2017;Wei and Dalrymple, 2017a,b).…”

Section: Numerical Modelmentioning

confidence: 99%

Surf Zone Wave Heating by Energy Dissipation of Breaking Waves

Wei¹,

Dalrymple²

2018

Int. Conf. Coastal. Eng.

Self Cite

View full text Add to dashboard Cite

This study investigates surf zone wave heating due to the dissipation of breaking wave energy by using the Smoothed Particle Hydrodynamics method. We evaluate the surf zone wave heating by examining the increase of internal energy of the system, which is computed based on the conservation of energy. The equivalent temperature profile is calculated based on a simple conversion relationship between energy and temperature. We first examine the surf zone wave heating based on long-crested wave breaking over a planar beach, and we consider spilling breaker and weakly plunging breaker. Numerical results show that breaking of water waves in the surf zone increases the internal energy of water body. Furthermore, the dissipation of incident wave energy is fully converted into the internal energy in a thermally isolated system, confirming the energy conservation of the present numerical approach. It is further found that the long-crested wave breaking generates undertow, which transports the generated wave heating from the surf zone to deep waters. We further carry out numerical experiments to examine surf zone wave heating due to short-crested wave breaking over a beach. The internal energy generation mainly follows the isolated wave breakers, and there is a 3D pattern of wave heating due to the complicated wave breaking process and current system. In general, the magnitude of the generated internal energy or temperature by dissipation of breaking wave energy in the surf zone is relatively small. The present study shows that the generated water temperature is in the order of 10^-3 Kelvin for wave breaking over a typical coastal beach.

show abstract

“…In recent decades, the performance of SPH method has been greatly improved in terms of computational accuracy (Crespo et al [2007] Wen et al [2016]). At the same time, it has been successfully applied to study the hydrodynamic processes related to coastal and o®shore engineering, such as wave transformation (Dalrymple and Rogers [2006]; Shao and Ji [2006]; Khayyer et al [2008]), sediment erosion (Wang et al [2016(Wang et al [ , 2018), suspended sediment motion (Shi et al [2017]) and wave interaction with assorted structures (Shao and Gotoh [2004] Recently, Li et al [2012] studied solitary wave¯ssions over uneven bottoms using the SPH model.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Wave Breaking Over a Submerged Step with SPH Method

Wen

Ren

Wang

et al. 2018

International Journal of Ocean and Coastal Engineering

View full text Add to dashboard Cite

Wave breaking over a submerged step with a steep front slope and a wide horizontal platform is studied by smoothed particle hydrodynamic (SPH) method. By adding a momentum source term and a velocity attenuation term into the governing equation, a nonreflective wave maker system is introduced in the numerical model. A suitable circuit channel is specifically designed for the present SPH model to avoid the nonphysical rise of the mean water level on the horizontal platform of the submerged step. The predicted free surface elevations and the spatial distributions of wave height and wave setup over the submerged step are validated using the corresponding experimental data. In addition, the vertical distributions of wave-induced current over the submerged step are also investigated at both low and high tides.

show abstract

Development of a two-phase SPH model for sediment laden flows

Cited by 62 publications

References 58 publications

A theoretical formulation of dilatation/contraction for continuum modelling of granular flows

A theoretical formulation of dilatation/contraction for continuum modelling of granular flows

Surf Zone Wave Heating by Energy Dissipation of Breaking Waves

Numerical Simulation of Wave Breaking Over a Submerged Step with SPH Method

Contact Info

Product

Resources

About