Posts Tagged ‘GoEngineer’
Wednesday, April 19th, 2017
What is a “Vortex Across a Pressure Boundary?”
In Flow Simulation, a vortex is a region in the fluid domain which causes a swirl in a region where there is asymmetric drag in the flow field. The vortex itself is an expected phenomenon which itself is not problematic. When that vortex is allowed to generate across a theoretical boundary within a CFD analysis that can cause the results to deviate from reality in the immediate vicinity of the boundary or also cause the solver to fail to produce results at all. For that reason, it is important to note where this is happening in an analysis and take steps to avoid it.
How can this be fixed?
The vortex itself is generating because of the local solid geometry near the pressure boundary of a CFD setup. If the flow through the boundary is not symmetric, a low-pressure region can generate in front of the boundary allowing fluid to pass the wrong direction through the boundary as intended. The fix for this is to “build out” the model geometry. What does this mean? The solid model needs to have more real life geometry added to the setup so the flow field can be allowed to have the vortex and then transition into a unidirectional flow.
Solution 1: Add Geometry
An example of a vortex across a boundary would be directly from the first Flow Simulation tutorial in SOLIDWORKS.
(The tutorials can be found under ‘Help’, ‘SOLIDWORKS Simulation’, ‘Flow Simulation Online Tutorial’ once the Flow Simulation add-in is turned on). The ball valve, as it is setup in the tutorial, has two lids that are positioned closely to the ball of the valve. In situations where the ball valve is not set completely open the flow through the valve is forced to be asymmetric as it passes through the pressure outlet.
The asymmetric flow out the pressure boundary allows fluid to backflow through the theoretical pressure boundary and creates the vortex that is seen below. (more…)
Wednesday, February 22nd, 2017
Stratasys recently announced a new lineup of three new FDM machines known as the F123 series. This new lineup of printers brings you new design, new components, new software and so much more. Learn how the Stratasys F123 Series makes the Rapid Prototyping process more efficient and productive for you and your team in this webinar:
Tuesday, January 31st, 2017
SOLIDWORKS Electrical 2017 is here and we are super excited about some of the new features and enhancements it provides. Although SOLIDWORKS Electrical is still a relatively young product to SOLIDWORKS; it’s users have been actively putting it through its paces and making suggestions to make it even better. This year we not only see some great enhancements, we got some great new capabilities.
1. 3D Layout – Use existing assembly
You can now use an existing SOLIDWORKS Assembly to insert your electrical components to route your wires, cables, and harnesses. They have also renamed the command, it’s still under the process tab but it’s now called “SOLIDWORKS Assembly”. You can still have electrical create a new assembly or select an existing assembly from your local drive, network or Enterprise PDM.
2. Add data file shortcuts
When adding documents to your projects, such as a PDF, you can now link to the document. This is awesome because it allows you to store your reference material where you traditionally keep it instead of making copies within the project.
3. Replace attribute and renumbering documents
Both commands received huge improvements as well as new interfaces. Both make it easier to incorporate changes faster and more accurately.
Tuesday, January 3rd, 2017
Recorded Webinars – A Tool for Personal & Professional Development
It’s hard to believe 2016 has come and gone. Were you successful in completing your 2016 resolutions? I found personally, that setting obtainable goals worked best and were much more fulfilling in hindsight. Here are 3 rules I live by:
- Commit to a Resolution that is obtainable – Start Small.
- Tell everyone close to me for accountability purposes – Talk about it.
- Don’t quit when steps aren’t achieved as quickly as intended – Never Give up!
So, now that we’ve outlined how to set a resolution and stick to it, let the learning begin! Below you will find a short list of Top GoEngineer webinars of 2016.
Sit back, Grab a cup of coffee or tea, and hit play!
For this first video, you will learn about New and Enhanced Features of SOLIDWORKS 2017 according to Sean Stone, Applications Engineer. Here Sean shares some of his favorites from this years’ launch events as well as some buried in the What’s New document.
Visuals are important to the design process, stories, social media and more. They are dominating Pinterest, that’s for sure. In this webinar, you will learn tips and tricks to the Visualize Interface and ideas for new graphical content you can bring to your company.
Thursday, December 8th, 2016
It’s hard to shop for a gadget-y, tech-savvy person, but here’s a good gift guide for the nerd you love. In my family, I’m the nerd I love.
If you feel the urge to send me any of these items below, the address is 2033 Chennault Dr., Carrollton, TX 75006.
1. Anoto’s Livescribe Smartpen, $119.99
I write lists. On paper. With a pen. Writing helps me remember, while typing with my thumbs on an itty bitty screen does not. Then I struggle to coexist between a paper and paperless world. But Livescribe solves that. It’s a Smartpen that houses an infrared camera, ARM processor, Bluetooth Smart chipset, flash memory and lithium ion battery all work together to bring your notes to life on your tablet or smartphone. Android and iOS friendly.
Tuesday, November 29th, 2016
Let’s talk about your SOLIDWORKS network license and debunk those myths with facts. Which one of these 5 are you guilty of believing?
You accidentally received extra licenses (yassss!).
Not true. Only once in 5 years have I seen SOLIDWORKS write an incorrect license file. The way licenses are listed in the SNL can be misleading. Suppose you have a network license containing 1 Professional License and 1 Standard license. The SNL will show 1 Professional License and 2 Standard Licenses. Why? Because when you are pulling a Professional license, the license manager is releasing a Standard license and the Professional ADD-INS. So really the license manager listing should read “Professional ADDINS”, rather than “Professional”. You cannot pull a Professional or Premium license without pulling a Standard license.
You don’t have the ability to use SOLIDWORKS on your home computer.
Tuesday, November 1st, 2016
Motorcycle Riding – 2010 KTM SMT
For me, riding my motorcycle is having the freedom of the open road and traveling with the wind in my hair! Sounds great, right? Well, after any extended period of riding in the weather elements; physical and mental fatigue takes over, leaving the operation of a motorcycle quite dangerous.
On my quest to create comfort and extend my riding to a long haul, I decided to improve the stock windshield (or windscreen) of my KTM SM-T. This is where aftermarket parts, SOLIDWORKS and 3D printing technology takes over.
Motorcycle Windscreen: Stock vs Touring
Take a look at the stock windscreen below. It looks ergonomically ‘sporty’ but doesn’t provide much protection from the weather elements.
In comparison, you will see a touring windscreen below. This version is significantly taller but still does not provide the necessary protection from the weather elements.
Tuesday, September 20th, 2016
Plastic Part Design – A Career
Injection-molded plastic part design is a job thet tends to fall into your lap. You have zero qualifications, and yet, you are supposed to do it perfectly while blindfolded. It’s difficult to lunge forward with confidence when you are building on a poor foundation.
The result is that you proceed with the project with a “learn-as-you-go” approach. Even so, there’s still opportunity to avoid common mistakes, make smart decisions, and release a smart, young, well-prepared injection-molded part into the universe, ready to make a big impact and change the world.
Read on to learn How to Successfully Design Plastic Parts.
Monday, August 15th, 2016
Ever wonder why rubber weights are used in Olympic weightlifting, but iron plates in most gyms?
We did. So, we looked into it.
The World’s greatest athletes demonstrate what it means to push the boundaries of human potential at each Olympic Games. In Olympic weightlifting, for example, new records are being set every year. Much is said about the athletes and how they challenge their limits to achieve new heights, but what about the equipment?
- Has it always been the same?
- What kind of stress occurs when the bar is dropped?
- How could pushing the boundaries of design enable athletes to achieve more?
At GoEngineer, these are the kinds of questions that keep us up at night.
Here’s what we found; changing the material of the weights, changed the sport of weightlifting.
See our Simulation FEA Drop Test
Weightlifting has been an Olympic event since the very first Olympics in Athens in 1896. Back then, the bar and the plates were made out of iron. The rules required athletes to gently return the weights to the ground. This obviously wasn’t possible when an athlete was going for a max effort lift, and would miss.