ANSYS Fluent Tutorial | Multiphase flow in an Inclined Pipe | Two Phase Flow in an Inclined Pipe VOF

Рет қаралды 49,484

Күн бұрын

It's a 135 degree inclined 50 mm diameter pipe with a small opening at one face, and a large outlet. Water is entering at one end with a velocity of 2 m/s, analyse the problem using multiphase VOF modelling.
Parametric Problem tutorial:
• ANSYS Fluent Tutorial ...
Multiphase flow Tutorial:
• ANSYS Fluent Multiphas...

Пікірлер: 165

@jeevansunny27 4 жыл бұрын

I have seen no one dislike this video because only wise man understand what you teach and they are here to learn . I love your video

@AnsysTutor 4 жыл бұрын

Thank you.

@AmeerHamza-bc4fh Жыл бұрын

Excellent tutorial. It's really helpful and educational.

@AnsysTutor Жыл бұрын

Thank you.

@achilleushermawanastyanto4419 Жыл бұрын

An excellent tutorial video, love it.

@AnsysTutor Жыл бұрын

Thank you.

@theassignmentteacher5181 2 жыл бұрын

Thank you, for this tutorial. ❤

@AnsysTutor 2 жыл бұрын

You are most welcome.

@pradeepsharadg 4 жыл бұрын

Thanks a lot for such a wonderful video. If possible can you post a video on Wick-less Heat Pipe (Thermosyphon) operation which includes evaporation and condensation phenomenon....

@AnsysTutor 4 жыл бұрын

Will try to make a tutorial if possible. If you have any research paper in that then please send us on ansystutor7@gmail.com

@karanpai9 4 жыл бұрын

Thank you for the tutorial. Could you please make a video on DPM/ coughing simulation?

@AnsysTutor 4 жыл бұрын

Will try to make a tutorial if possible.

@justnow8785 4 жыл бұрын

Hello can you help me to change angle of blade horizontally 45degree

@kadagalaganesh4653 4 жыл бұрын

Thank you sir, it is really helpful

@AnsysTutor 4 жыл бұрын

Thank you.

@sajidali2915 4 жыл бұрын

Thanks for such a helpful video. Any suggestion on how to model a water droplet on a rigid surface?

@AnsysTutor 4 жыл бұрын

Use patching to denote the droplet .

@alexwatano4701 4 жыл бұрын

Great job, thanks. Any idea on how to simulate plasma in radio frequency inductively coupled plasma ? Or any related topic ? Will appreciate

@AnsysTutor 4 жыл бұрын

Sorry, dont have any idea regarding that.

@anaspirant4129 4 жыл бұрын

Thank you so much it is very helpful

@AnsysTutor 4 жыл бұрын

You're welcome!

@eslamahmed7022 4 жыл бұрын

If I have pipe which is divided into two pieces one is water the other is air , is there any additional steps in modelling ? I'm afraid of the interaction between two pieces any tutorials?

@AnsysTutor 4 жыл бұрын

No,need to worry, do it similarly.

@ozgurbozkurt5945 3 жыл бұрын

Hello! Thank you for the great video. I am trying to set up a two phase inlet boundary condition. 70% of the time fluid 1/ phase 1 and 30% of the time fluid 2/ phase 2 flow out of the inlet. How can I setup this time dependent inlet BC?

@AnsysTutor 3 жыл бұрын

You need to create this using an UDF. If you cant do it using UDF then you need to stop the solution in between and switch the Boundary Condition.

@Mohamed.wael7 4 жыл бұрын

Thanks for this helpful tutorial. I always see the recommendations to use PISO in transient simulations. However, it diverges and the SIMPLE scheme gives better results. Any idea about this?

@AnsysTutor 4 жыл бұрын

Decrease the Time step size and increase the no of iterations per time step. Allow the solver to converge in each time step it might give good result.

@jack-buckhilll5428 3 жыл бұрын

@@AnsysTutor Agree! PISO Algorithm is good for two-phase flow...

@azliimran872 4 жыл бұрын

Thank you so so much, this is helpful. However, my volume fraction discretizations does not have second order upwind option. Only Modified HRIC, CICSAM etc.

@AnsysTutor 4 жыл бұрын

which method are you using.

@azliimran872 4 жыл бұрын

@@AnsysTutor same as yours.

@sharanspant1695 Жыл бұрын

Can you explain why in the boundary conditions, you gave it a volume fraction = 1, when in the initialization, you gave it = 0?

@raveeshg4286 4 жыл бұрын

Requesting for a video tutorial of condensation of water vapour

@AnsysTutor 4 жыл бұрын

Will try to make a tutorial on this. Thank you.

@thescienceshow2314 3 жыл бұрын

In geometry section there was 2 parts, in meshing how it became one? (i'm doing my geometry in sw then importing it into ansys)

@AnsysTutor 3 жыл бұрын

The second body is the linebody. Which is also there in meshing. But it dont take part in 3D meshing.

@KURDISHGAMING339 Жыл бұрын

Thanks 4 your amazing cfd tutorial videos My question is What will be the gravity input if we reverse the flow direction, I mean the flow from bottom to up, will be 9.81 or still - 9.81 ?

@AnsysTutor Жыл бұрын

It would be still -9.81 as gravity direction is along negative y axis.

@neelakshipadhi8435 4 жыл бұрын

Hello Sir. Thank you for the video. Which version of ANSYS is this? I have ansys R1 2019. Will it follow the same procedure as shown in this video?

@AnsysTutor 4 жыл бұрын

Everything is same, Only in meshing ,you need to select the sweep method only , you might not get the ogrid option in that version.

@hayderal-sarraf667 3 жыл бұрын

Thanks. But where does the heat come from so that you have steam? I did not notice you have run the energy model though.

@AnsysTutor 3 жыл бұрын

There no steam in this simulation.

@engr.abdullah2475 2 жыл бұрын

Can we use DPM with Multiphase eulerian modelling

@sam_issac00 4 жыл бұрын

Thank you sir

@AnsysTutor 4 жыл бұрын

Most welcome 🙂

@ibrahimkantar2402 3 жыл бұрын

Prof, i can not apply sweep method to my geometry, an error occur when i try to apply program controlled sweep method. There is no Algorithm option in my "Details of Sweep Method". How can i solve the problem ?

@AnsysTutor 3 жыл бұрын

You should use latest versions like ANSYS 20 or above.

@veervikramsingh6905 3 жыл бұрын

sir i am getting AreaAve of water at outlet is zero how

@xuhuang5749 Жыл бұрын

At 18:36, your screen shows a different time which is 0.344 sec, differs with in your previous set parameter 600 steps 0.0001 sec per step, so finally we get different contours with yours. Can you tell us the real parameters of your showed results?

@prathameshjoshi3486 4 жыл бұрын

Sir whenever I try to open ansys fluent I received message "ansys.fluent.cortex cortex not available Exception" what should I do? please guide me

@AnsysTutor 4 жыл бұрын

Which version software are you using. & What is the operating system.

@malikcosic1698 4 жыл бұрын

Great video. I hope you can help me. Can u make a video 2D pipe, water and ash, diameter 42 mm, velocity 1m/s or more, and to see total pressure. I've got problems, can't get pressure drop like I should. Thanks for your all videos :)

@AnsysTutor 4 жыл бұрын

Will try to make a tutorial. Thanks for your query.

@hurayratonmoy7990 4 жыл бұрын

I don’t have any method option at 16:19 where you used YZ plane. Instead of that, I have options, sample density,points etc. I am using Fuent 2019 R3

@AnsysTutor 4 жыл бұрын

If you are using older version then you need to put coodinates of any 3 points on that plane to create the new reference plane.

@057-shubhamswain5 3 жыл бұрын

@@AnsysTutor what coordinates we have to takee can u please tell

@arslanwaheed3750 2 жыл бұрын

Thanks a lot.

@AnsysTutor 2 жыл бұрын

You are most welcome.

@user-vk1oh9pq2e 4 жыл бұрын

спасибо за видео !

@AnsysTutor 4 жыл бұрын

Вы можете быть самыми желанными гостями!

@royyau912 3 жыл бұрын

Sir an error occur while meshing. "The axisymmetric sweeper failed to generate a mesh." How to fix it?

@AnsysTutor 3 жыл бұрын

Solve using the default meshing. Or reset the meshing.

@ammarlaichi8474 11 ай бұрын

Good Video, its the same for 2d tube

@AnsysTutor 11 ай бұрын

Yes, it can be made using 2D.

@fmetal7464 3 жыл бұрын

I keep getting the error "The axisymmetric sweeper cannot be used for the geometry. Try using a different method." when trying to generate mesh I'm using ansys 2021 R1 student version

@AnsysTutor 3 жыл бұрын

You need to suppress the line body.

@basheerkhalil5892 Жыл бұрын

how can I calculate the flow velocity on inclined surface as specific location using fluent? wat are the steps?

@AnsysTutor Жыл бұрын

You need to create a probe point or surface plane at that location.

@soul._.trekker7686 4 жыл бұрын

sir i am not able to generate mesh because this message is popping up, "The axisymmetric sweeper may not associate mesh to all edges and vertices. Check any relevant loads and boundary conditions that may be affected." please help

@AnsysTutor 4 жыл бұрын

Suppress the line body. & then mesh.

@diegobouzada8276 4 жыл бұрын

Hello, if one needs to increase the number of iterations per time steps past the recommendation of 20, say, 150 iterations per time step, does that imply that there's a problem with the model? Or it's just hard to converge?

@AnsysTutor 4 жыл бұрын

It will increase the results accuracy, but it will take a longer time.

@diegobouzada8276 4 жыл бұрын

@@AnsysTutor much appreciated

@Anurag-sq4yc 3 жыл бұрын

Sir I’m unable to see my time steps in timestep selector It’s shows only final time step I’m using time step size of 0.01 and 1000 time steps

@AnsysTutor 3 жыл бұрын

Can you share the screenshot on our facebook or telegram page.

@johnbohn3626 2 жыл бұрын

Sir can you please tell me how vof captures the deposition front between two immisible liquid

@AnsysTutor 2 жыл бұрын

You might use DPM modeling for such type of simulation.

@alvkarthik2018 4 жыл бұрын

"The axisymmety sweeper cannot be used". It is showing like this. Can you suggest something. How can I proceed forward.

@AnsysTutor 4 жыл бұрын

Try to suppress the line body first before meshing it.

@thescienceshow2314 3 жыл бұрын

A software execution error occurred inside the mesher. The process suffered an unhandled exception or ran out of usable memory. im having this error

@AnsysTutor 3 жыл бұрын

Reset the mesh and again do it.

@ammarlaichi8474 11 ай бұрын

the axisymmetric sweeper can not create for this geometry, what is the problem

@AnsysTutor 11 ай бұрын

Its only for planner geometry

@arslanwaheed3750 2 жыл бұрын

Please do a tutorial on grooved wick Copper heat pipe

@AnsysTutor 2 жыл бұрын

Thanks for the request, Will try to make a tutorial.

@fly8095 2 жыл бұрын

Thank you for the video! I have suppressed the line body but it's still have an error " the axisymmetric sweeper cannot be used for the geometry", how can i fix it in ansys 2020R2？

@AnsysTutor 2 жыл бұрын

Use the manual method to create the sweep mesh or do automatic meshing.

@AnsysTutor 2 жыл бұрын

kzfaq.info/get/bejne/bsWfpqaJv9Daj5s.html

@mahdirahmani150 2 жыл бұрын

Would you talk about triple phase. Water, air particle. I assume it should be a multiphase with air being a primary phase, water being a secondary phase and dpm on. Is that right?

@AnsysTutor Жыл бұрын

Yes, you are right. Any three distinct phase of material combination can be a three phase analysis.

@noorsaid9572 3 жыл бұрын

Hi, I am reproducing results for turbulent pipe flow from decaying swirl. I have the geometry but can't apply it in ansys. Can you help?

@AnsysTutor 3 жыл бұрын

What are the difficulties that you are experiencing.

@noorsaid9572 3 жыл бұрын

@@AnsysTutor I sent you an email can you check it?

@rickywang3189 4 жыл бұрын

Hi. I have problem with generating the mesh. it says "The axisymmetric sweeper may noy associate mesh to all edges and vertices. Check any relevant loads and boundary conditions that may affected". I am using ansys version 2020 R2 Academic. I also had the line body suppresed. Please Help..Thanks

@rickywang3189 4 жыл бұрын

I find out that changing the inclination angle from 150 to 135 will solve the problem, as you did in the video. I thought it was optional. I have no idea why the inclination angle could affect the axisymmetric meshing. Any idea about this?

@AnsysTutor 3 жыл бұрын

Its due to software glitch. You can create a new geometery with the same inclination ,it would work .

@dembafaye3376 3 жыл бұрын

D o you rnow how to model a two-phase flow ( oil and solides particles) in a inclined cylindrical tube.

@AnsysTutor 3 жыл бұрын

You need to use DPM for this. In that you can define the particle diameter etc.

@dembafaye3376 3 жыл бұрын

@@AnsysTutor can you show me please how we use DPN.

@alimiller7187 4 жыл бұрын

Hi I want help me about cfd and matlab for T-junction pipe...thanks

@AnsysTutor 4 жыл бұрын

Please describe a more about this simulation.

@alimiller7187 4 жыл бұрын

@@AnsysTutor studying the property of pétrole and naphtha theoretical, with rough inner surface and pressure loss by ansys fluent

@pardeepbishnoi6128 4 жыл бұрын

Sir, The following error is shown while doing meshing with sweep method "The following non sweepable bodies have force sweep method controls and cannot be swept". Any idea Sir? I am using Fluent 15.0 (Window 10/ i7 processor)

@AnsysTutor 4 жыл бұрын

You need to suppress the line body created.

@pardeepbishnoi6128 4 жыл бұрын

@@AnsysTutor I did that but the results are the same. In 15.0 ver., I couldn't get the Algorithm and O-grid division option. Is the problem occurred due to these ?

@AnsysTutor 4 жыл бұрын

The algorithm o grid is a new option available in ver 19R3 & higher versions.

@alializadeh8195 2 жыл бұрын

ممنون

@ShashankMishraCR7 4 жыл бұрын

I am running ANSYS 18.1 and in post processing under variable option water volume fraction is not showing. What should I do? Only water liquid density option is showing. Help me as I am doing CFD for the first time.

@AnsysTutor 4 жыл бұрын

Have you defined the various phases

@ShashankMishraCR7 4 жыл бұрын

@@AnsysTutor yes i have defined them

@ShashankMishraCR7 4 жыл бұрын

@@AnsysTutor can you provide any contact information for me to consult you? My email id is - mishra.shashank54@gmail.com

@raoheo9391 4 жыл бұрын

The error "| gzip -2cf> FFF-1.cas.gz" occurred. How can I solve it?

@AnsysTutor 4 жыл бұрын

Check the file name it should not contain any space or special characters. Do you have a valid license.

@raoheo9391 4 жыл бұрын

Ansys-Tutor No, I don't. It is free service. But after that, calculation completed, but result is different with you. Thank you for your nice explaination!

@sam_issac00 4 жыл бұрын

Sir How to download this ansys software free download please help me

@AnsysTutor 4 жыл бұрын

kzfaq.info/get/bejne/e5uZeMJ80dCXcWw.html

@MadaraUchiha-vv5fs 3 жыл бұрын

for outlet dont we need to create a projection just like you did for inlet

@AnsysTutor 3 жыл бұрын

Yes you can create, but the requirement for this case is like that.

@nurhaleem9705 3 жыл бұрын

What should i change if i want 2 different gas enter at inlet of a pipeline at the same time with one is enters with bigger fraction from another gas. Btw nice video.

@nurhaleem9705 3 жыл бұрын

And another question is can i do it in 2d for the geometry?

@AnsysTutor 3 жыл бұрын

You need to put different volume fractions for that.

@AnsysTutor 3 жыл бұрын

Yes you can so it in 2D.

@nurhaleem9705 3 жыл бұрын

@@AnsysTutorSorry again. I want to ask if i want a fixed inlet pressure and pressure drop along a pipeline. lets say i want 0.5 psi (3447.38 Pa) at inlet, what should i do because when i change the operating pressure, the outlet became 0.5 psi and not the inlet. Thanks in advance.

@mahenkpatnaik8224 4 жыл бұрын

After completion of solution i find a pause and tick beside solution tab. Can you guide me what am i missing.

@AnsysTutor 4 жыл бұрын

You might have interrupted the solution.

@AnsysTutor 4 жыл бұрын

kzfaq.info/get/bejne/fdl8mMtqzpPSkn0.html

@lucas_supermoto6576 4 ай бұрын

The tutorial is very nice, but I don’t get the same results. The water is just flowing down the pipe without forming on the wall or even a separation on the water jet. Any ideas how to fix that?

@AnsysTutor 4 ай бұрын

Try to improve the mesh.

@lucas_supermoto6576 4 ай бұрын

Do you have any recommendations for an improvement? I used the same Parameters like you. Unusually the number of nodes and elements is lower than yours.

@lucas_supermoto6576 Ай бұрын

I solved my problem changing the interface modeling. With the „sharp“ mode I get the same results. Do you know how to be sure that this mode shows the reality? Why isnt ist sharp/dispersed?

@laituan7748 4 жыл бұрын

Hello Can you Help me create "wave tank" by wave channel or UDF?

@AnsysTutor 4 жыл бұрын

we have already a tutorial on such topic. kzfaq.info/get/bejne/ra50ecSGvOC9mXU.html

@laituan7748 4 жыл бұрын

@@AnsysTutor i try to use 2D analyst. However it's wrong. I don't know where I'm wrong! Can you share document with me? Thanks .

@alexwatano4701 4 жыл бұрын

Well done 👍🏽, any idea on how to simulate plasma in RF-ICT? Or any related topic ? Will appreciate

@AnsysTutor 4 жыл бұрын

Sorry, no idea regarding this.

@metehanyilmaz3785 4 жыл бұрын

I cant see algorthm, can you help me? 06:34 (I have r19.2 version)

@AnsysTutor 4 жыл бұрын

Algorithm option is a new option added in the latest versions like Ansys 19 R3 & 20R1

@metehanyilmaz3785 4 жыл бұрын

Understood. Thanks you for that your videos. They help me a lot of things to learn. I hope you not stop . Best wishes. :)

@AnsysTutor 4 жыл бұрын

Thank you.

@raoheo9391 4 жыл бұрын

I followed the instructions in the tutorial, but the results are different. The difference is that my result is just the form of air draining out, and water does not form on the wall in the form of drops. What is the problem?

@AnsysTutor 4 жыл бұрын

Did you get the flow of water or not. Check the inlet velocity and volume fraction of water at inlet.

@raoheo9391 4 жыл бұрын

@@AnsysTutor Thank you!!

@TanvirAhmed-fs9bg 2 жыл бұрын

Hello Sir, I also faced the same issue. Checked the inlet velocity, but same issue happened

@raoheo9391 4 жыл бұрын

I ran the interpretation the same way as the tutorial video over 3 times, but the result is different . The fluid flows and does not form on the wall, but results in just an elongated stream of water. Could you please take a look at my results?(I checked all about you have commented above!😂)

@AnsysTutor 4 жыл бұрын

Yes please send us the result.

@raoheo9391 4 жыл бұрын

Ansys-Tutor How can I send my result? / dlm2002@naver.com / Would you send a mail to here? I'm going to send result to that mail!!

@AnsysTutor 4 жыл бұрын

You can mail us on ansystutor7@gmail.com

@raoheo9391 4 жыл бұрын

@@AnsysTutor Thank you!! I sent mail before 3 hoours !

@TanvirAhmed-fs9bg 2 жыл бұрын

I am stuck in the same problem. What's the solution you have got? Can anyone help me?

@sedatarslan3994 3 жыл бұрын

i think you made it wrong . in initilazition you made water volume fraction as 0 it just helps for iteration time . you need to patch the zones which you want to fill at begin.

@AnsysTutor 3 жыл бұрын

Patching has a different purpose it cant be used everywhere, i might have used patching if its filled with fluid already. As its an empty pipe , we need to use volume fraction method to instruct the solver regarding the fluid.