I need to simulate and analyse the hydraulic characteristics (Discharge of Flow & Elevation of Water Level) of Flow in Coarse Porous Media using Smoothed Particle Hydrodynamics method (SPH)- A Meshfree Particle Method.
When we investigate the transition of flow in soil, we can use of Darcy Equation, because only we have Laminar flow. But in COARSE Porous Media, we have both of Turbulent Flow and Laminar Flow (as the same as Rock-fill dam).
Does anyone believe that SPH is efficient for Turbulent Flow or Laminar Flow?
In addition, I need to study several articles and thesis on this issue. Is there anyone who can help me or introduce and suggest some impressive papers, links,...?
dear sayed
I have some papers about your research. please give your email address. my email [email protected]
Hi dear Kuswandi
Thank you. My email address is [email protected]
Sincerely,
S. M. Mohammadizadeh
Hi dear Asdfsf Sdfgsdf
Thank you for your answer.
Best regards,
S. M. Mohammadizadeh
Hi dear S. M. Mohammadizadeh
I don't have a lot of experience in this issue but I am solicitous to know more about it. I think this article can be useful for you.
Best wishes,
A. Dahmardeh
Hi dear Arman Dahmardeh
Thank you for your answer and interest. I'll illustrate my project for you. I need to help of you and all researcher in this field.
Sincerely,
S. M. Mohammadizadeh
Hi dear Asdfsf Sdfgsdf
Many thanks for your guidance,...
Sincerely,
S. M. Mohammadizadeh
Dear Mehdi,
Basically there is no restriction on the state of flow for using the SPH method, however implementation of turbulence in SPH is somehow more difficult than regular conventional discretization methods.
I would suggest thinking about solution of the fluid by SPH and the solid part (unsaturated) by more suitable methods.
Dear Kourosh Hejazi
Thank you for your attention, time and guidance. I should explain more about my issue... I need to investigate the Outlet Velocity of flow in a medium that made of isotropic and homogeneous rocks (such as Rock-fill dams). This medium exists of some porosity between the rocks. In this project I should simulate mentioned medium and investigate the characteristic of fluid.
Do you think that SPH method is appropriate method for this issue?
Sincerely,
S. M. Mohammadizadeh
I would say if you are focusing on flow characteristics and not the soil/rock-water interaction the Finite volume method would be more appropriate and if the flow inside the porous media is of more importance I would also think of the finite element method at first instance. However, if you are also interested in soil-water interaction using a combined method of finite volume-finite element or finite volume/discrete element are the methods I would think of before SPH.
Dear Kourosh Hejazi
Thank you for your complete answer and important notes.
Dear Mehdi
You can use these articles. I think these are useful for your study.
best wishes
Dear Pooyan
Many thanks for your help. But I need to communicate more with you in this issue because I know that you have a lot of experience and knowledge in Smoothed Particle Hydrodynamics method (SPH).
Sincerely
Thanks a lot for your attention, time and comment Dear Dr. Giuseppe Cotellessa.
SPH is a convenient tool for this type of modeling,
I think it is better to contact with Dr. Ghoreishian that is an expert in this case,
https://www.researchgate.net/profile/S_Ali_Ghoreishian_Amiri
Sincere,
Hashemi Monfared.
Dear Dr. Hashemi Monfared,
Your respond and guidance is highly appreciated.
Best regards,
Mohammadizadeh
I have no experience in SPH, nor in Turbulent Flow in porous media. But I think there are a couple of points you should think about:
1- What is the scale of your simulation? meso-sclae or macro-scale? This could be one of the key issues in selecting the appropriate numerical solution.
2- What is/are the main shortcoming/s of the common solutions? I mean, if the common solution is FVM, and you want to use SPH, then you will need to be able to specify the benefits of applying SPH instead of the common one.
Dear Dr. Ghoreishian Amiri,
At first, I should appreciate you for your attention, time and beneficial points that you mentioned. Then, I should tell you more about this issue. I want to simulate and analyse Coarse Porous Media -such as Rockfill dam- to evaluate and determine of Output Discharge of flow from this mediumand profile of water level in the body of this medium. Also, I believe that the flow in these kind of media are combined of Pressurized and Free surface flow. On the other hand, when the flow passes through the porous medium, the fluid is crossed from one hole to the neighbouring ones by the duct between them. The flow is divergent when it enters the nodes and it becomes convergent while exiting from that and going into the ducts. The influence of convergence and divergence at the moment of entrance and exit of the ditches is one of the important parameters which should be considered in simulation of flow through porous media and the loss produced by that should be taken into consideration in related calculations.
Regards
I can't see your point Mehdi. In a rockfill dam, the discharge is actually controlled with the core of the dam, which can be clay, concrete or asphalt. So, what is the importance of very accurate calculation of the flow regime in the rockfill part??
In the way of runoff, we can use an obstacle that contains from a lot of stone (Delay Rockfill Dam). In this kind of dam, there is not any kind of core. The fluid flow can pass through porous media but the energy of flow should be decrease by passing through the pores of mentioned medium.
Ok. Now I see your point Mehdi. I have no experience in this kind of modelling. In my experiences, Darcy's law is always valid. This assumption reduces the independent unknowns and ends up with the average velocity/flux. While you are going to simulate the flow inside the channels (between the particles). So, you need to solve the complete form of the momentum balance of the fluid phase (instead of Darcy). I think SPH could be an appropriate tool. Just be aware of the computational cost of your simulation in a full scale rockfill dam.
Dear Dr. Ghoreishian Amiri,
Many thanks for your attention, time, guidance and prolific points that you mentioned.
Sincerely,
Mehdi
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