SolidWorks Simulation Demo – Split Pipe – from ICT



hi this a new flow demonstration based on a model by Yannick which is a split wide channel going through the ball valve model so it's a little bit more interesting just having the ball valve on its own now we're going to do is go through and look at the setup aspects first you'll see the first thing it does is it will always resolve lightweight components so they can obtain the references to the faces where we've got boundary conditions goals etc for setting up this model the best thing to do is really delay the results for the two configurations we're going to be doing is actually comparing the offset distance of the y join from the ball valve to look at the impact that has so just go to the different configurations we've got the short pipe then a long pipe configuration just lay the results and obviously the benefit of that is that we can quickly change models to look at the different results and that is pretty straightforward so let's go through and what I'll do is I'll go through and do the demo and talk about it from a flow assay flow works aspect and cover the things I'd expect you two to talk about in the demonstration flow works is a simulation tool inside SolidWorks it really enables us to understand and visualize the effects of flow internal or external to structures we can study things such as fluids thermal effects with heating and cooling in solids as well as in the air and also some more advanced things such as hypersonics rotating machinery and so on what we have here is a a ball valve system with a y channel and what we're interested in looking at using flow simulation is the impact of the ball valve and the proximity of this Y channel where we're splitting the flow because ideally what we want is we have the same flow in both pipes at the end in flow simulation we'll really do is set up a couple of inlet and outlet conditions so we have our inlet here where we capped it and we're specifying a flow of 1 kilogram per second and we just specifying atmospheric pressure at the outlets and this one only takes a few minutes to solve but we're just going to go through and look at some of the results one of the easiest results to look at is just a section cut which is a slice through the model where we can look at the different results in this case what we're looking at is the velocity at this section through the model so you can see here we also got vector areas in here showing us the velocity direction as it goes through so you can see the narrowing due to the valve being open one things you'll notice is that the results are not symmetric we're seeing a deflection because of the valve angle and is actually ending up giving most of the flow going down in one side and we'll look at that numerically in a little bit but it's just visually we can already already see that we have some other tool so for that job there I just had to our restarts all the works are locked up on me anyway so we can now look at the flow going through the system in a manner of streamlines and obviously you can see there is a much higher percentage of the flow going out to the right but exit with these flows we can also animate those as well so we can quickly see that take effect and that also gives us an idea is based on the velocity of those portions of the flow fluid how long it takes to get out to the different areas at any time you can also come in here and change it from being whether it's a pipe flow to being lines with arrows I'll just keep that up there and we can increase the density so we can show more arrows or we can change it to Spears and you obviously have the velocity to find at the minute we can also change that at any time and make it pressure as well I will just leave this is line scenarios and again the lines and arrows is a nice one to animate as well usually all right skip that one now in terms of numerical results we can actually extract the information so we can select these surfaces so on the left hand side here we can just evaluate what the information is in this giving us an average mass flow of 0.12 kilograms per second remember we're putting a total of 1 in we look at the other outlet on the right see we're getting 0.88 so that again reinforces that the bulk of the flow is going at one direction so let's see with the short valve we're not getting a very symmetric flow so let's go to a different configuration that's another great thing about flow simulation is it's so integrated inside SolidWorks you can take advantage of all the configurations you have set up to do it with different geometry evaluations whatever else you want as quickly if we show just a sectional plot again you can see the same sort of result but a lot more symmetric looking flow by having the why join further away we see the flow gets a lot more time to a mix and become more uniform now still not perfect you feel it look at the surface perimeter so on the Left we evaluate it you'll see we're about 0.6 6 which isn't too bad and on the right is so we're going to be around 0.3 for or something point 3 4 there you go so it's much better than what it was but it still needs to go further away for going to evaluate that so again it's a great powerful tool for quickly helping us to identify things again with the flow you can see we get much more even distribution of flow than before so let's flow simulation that's one just one example of how we can apply it and use it in a design environment to evaluate changes but there's lots of other ways as I said there's a lot of thermal aspects we can look at for heating and cooling as well as external aerodynamics forces and we can take all that into simulation to look at stresses within the structure as well

18 Comments

  1. Kirby Yeo said:

    Correct me if I am wrong @ictsolidworks
    The flow will be even if the elevation of the Y is equal and it is not tilted to one side?

    June 27, 2019
    Reply
  2. Natetron01 said:

    just rotate the ball valve 90 degrees so it it opens horizontally compared to the y split instead of vertically. it will angle the flow up and down which will still hit the y evenly as compared to being given bias.

    June 27, 2019
    Reply
  3. Skippy Farnsworth said:

    When you first open Solidworks… How did you get your logo as a background image?

    June 27, 2019
    Reply
  4. Tristan Williams said:

    When you first open Solidworks… How did you get your logo as a background image?

    June 27, 2019
    Reply
  5. Acu5tom said:

    Am I correct in saying that the ball valve isn't fully opened?

    June 27, 2019
    Reply
  6. Daniel Jose Castilla said:

    Well done ! 

    June 27, 2019
    Reply
  7. Abaqus Simulia said:

    youtube.com/user/abaquscae/videos

    June 27, 2019
    Reply
  8. simrocks1 said:

    I can't select 2 outlets or 2 inlets in solidworks flowexpress?? It doesn't have options to select more than 1 outlet or inlet. How can I select 2 outlets or inlets. PLease Help.

    June 27, 2019
    Reply
  9. Ahmed Salman said:

    good job

    June 27, 2019
    Reply
  10. jianh1989 said:

    Is this typical Solidworks? or Solidworks Flow?

    June 27, 2019
    Reply
  11. User6327 said:

    I call bologna on SolidCrash locking up on anyone…ever…

    June 27, 2019
    Reply
  12. Rajan Bharti said:

    What if you want Less Flow…?

    June 27, 2019
    Reply
  13. pietzeekoe said:

    this guy sounds like thunderf00t

    June 27, 2019
    Reply
  14. danxl5 said:

    @damajesticjester Hey thanks.
    I have upgraded my computer since that comment. I should try again.
    Cheers.

    June 27, 2019
    Reply
  15. Dan Frederiksen said:

    interesting the flow goes to one side but I assume that's not really true other than for completely open pipes. if there is any load the split will likely be near 50% anyway

    June 27, 2019
    Reply
  16. Blackennew said:

    when choosing an analysis of internal flow I get this error when I'm putting the boundary conditions
    Error: "Face … is not laying on the boundary between solid and fluid region" thanks for your answer. in Peru we should put more your videos

    June 27, 2019
    Reply
  17. saad hamady said:

    تصدقوا انو الزول دا سارق الفكرة دي مني!!!!

    June 27, 2019
    Reply
  18. lequi7 said:

    Great, thanx for posting

    June 27, 2019
    Reply

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