Hello Everybody

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Hello everybody, hope you're having a great day. This is Mason Maher Atheran. I've been with Allsign Engineering for a year and a half roughly. Before that I was with an electric car company called Python and before that I was five years with Ford Motor Company.

The YouTube short we have today is about turbo machinery. This is the second YouTube short we have. A little bit about us. We have been in the Bay Area for 17 plus years and have had a successful operation during that time.

We have a thousand plus happy clients and are the elite channel partner of ANSYS. We have a lot of expertise in multi-physics, finite element analysis. Additionally, we have expertise in computational fluid dynamics (CFD) and electromagnetics, which includes both high and low frequency.

Our territory includes Oregon, Nevada, and California. We have a headquarters in Sunnyvale and also offices in Portland, Oregon, and staff in Long Beach, California.

Here is the list of software that we can sell to you: - Instructors: mechanical, palestina, encode, and more - Fluids: Fluent, CFX, FenceUp, Fortress, and more - Electromagnetics: two categories, high and low frequency. High frequency mostly includes HFSS, SIwave, and more.

Low frequency includes Maxwell, Arm Expert, even Motocad. - Semiconductor tools - Optics: Optis - Material side: Granta, embedded software - Different packages of Skate - For system: TwinBuilder and Medini We have a lot of software that we can sell to you.

So whatever industry you're in, don't hesitate to give us a call. We can definitely give you the right tool and make your product development process faster and more efficient.

In the previous YouTube short, I focused mostly on the introduction and applications of turbo machinery in different categories and how you break it down. But in this YouTube short, I'll focus on CF Turbo. I'll focus on CF Turbo and how to use it in different categories.

So I'll focus on CF Turbo and how to use it in different categories. And we'll do an example problem on fan initial design or conceptual design. First, I'll go to a couple of slides to see how it looks like. Then, I'll go step by step in the actual tool.

For fans, when you open the CF Turbo tool, you have all the options, which include pump, fan, compressor, and turbine. If you choose, for example, fan, you have a basic 12-to-house solution that complements the mono Simmons and GNR selection text locally.

But we have a lot of resources, such as access to MSN極, and the goal is to put in the DSM and have a very powerful and easy-to-use Data meanubing tool. Let's go then. The main dimensions are mostly based on the best efficiency points.

Then, you do the meridional contours, which is like a side 2D i would say plot of the thermal machine. After that, you design your blade properties, such as blade numbers, their shape, angle, type, etc. You have a lot more things to tweak after that.

You do the blade profiles to define the thickness and even if they have a certain profile, they can be modeled that way. Finally, you do something named blade sweep, which is a little tweak in the final design, mostly done for any edge or acoustic purposes. Here's a sample problem.

As you see, we started with an impeller or rotor, which is the blue part. Then, at the end, we added a stator downstream of that. Here is just 3D geometry based on that from which you can start more accurate and higher fidelity simulations such as FEA or CFD. From now on, I'll go to the actual tool.

Here is the problem that we'll be doing for today. I'll close it totally and start from scratch.

So when you open CF double, you have these options: - If you are looking to design an actual fan, something similar to what people use in cars, data center cooling systems, or let's say drones, you define the operating conditions, such as flow rate, pressure increase, and limit for RPM because of durability. - Then, you can choose the type of fan you want, such as unshrouded or shrouded. - You have a standard and it has an airfoil for a parameter.

Also, you have some non-dimensional non-reflective. - You have a lot of data that you can use to calculate the number of blades and even tells you how it would change it. - Let's see if you make it a little higher. You'll be this much off from the optimal point. - I'll put it back to automatic.

So you can see that it has insight. - And this is a good point for efficiency. The next step is the Cordia diagram. Here's a counter as you see here. This is the Blades. It's like a side view. Can have any profile for blades.

Let's say I want to assume that the leading edge is a straight line and trailing edge is Like a Bezier curve or like a smooth curve. I can even do that for the leading edge. I can do it as you want. And then after that, I should define the hub. Check it. And I saw. Okay, how should my hub look like?

Let's say it goes all the way up to 28 mm. Just make sure it's accurate enough. Here it goes all the way to 20. I think it should be good to go. And this is the secondary flow path. I don't think you need to worry about it. That's where you have some leakage from your device.

Which is not going to be discussed in this YouTube short. The next one will be defining the blades. But just for the sake of it, how it looks like so far. If I click OK. If I go to 3D model, you see I have the hub and I have the Outer layer of the casing. And then you need to put the blades on it.

So, okay. The next one was defining the blades. Go to blade properties. Here's what you have: - You can set the number of blades and even like how many spans you're going to have for one blade. - You see here you have 15 spans.

If you make it smaller, it will be Less kind of Number of cross-section or pixels in the normal directions as you see. - And then here's the Up to shroud velocity profile. So let's make this. I mean, you have a lot of options you can play around with to get the profile you're interested in.

I'll make it something like this. Okay. - And then after that, the profile selection. I think you have everything the angles, the curves, velocity vectors. - And you go to profile section you have for profile section different options you can choose.

I'll stick with what I have so far. - And then after that, you go to profile properties. This is the we go with the angles that you have in mind. It can be calculated even automatically, so you don't have to worry about it. - And we should be good to go.

So we go to next and then we go to profile section. And then after that, you go to profile section. And then after that, you go to profile section. And then after that, you go to profile section. And then after that, you go to profile section. And then you go to profile section.

And then, it show up like that and you open a little more which is like this. It'll also show you the scale so you can see exactly how long the blade is. Now, let's go back to the content Moderator and we'll do, we have any total content preset. I'll go back to object context and bit more about it.

And then you can see even some 3D view of it too. See, you have this blade shape and also the angles. I'm not going to have too many windows here so you can easily see it. See that's how it would look like on the fly.

You can change it and based on that, this would change and you'll be able to see how it would look like. The other one would be I would say the slightly different. You can change it for the next step, which is something called sweeping.

This is just used for mostly actual fans, but you can use it for other options too. The thing is that you slightly tweak your profile when you do that. It will let you improve the NVH or acoustic properties. As you see, it's very small. It's just a minor tweak.

And I think after this, we should be all set. We'll finish. So just push OK. Let's see how the 3D looks like. And this is your 3D shape.

I mean, even if you like, you can go to that and do even maybe other steps, which are preparing that for CFD or even you do model finishing for example, I can do solid trimming so it gives me a nice clean CAD that I can do anything I want with it. See with a CAD like this, it's quite a clean CAD.

You can send it even to other tools. You can go here, export it to let's say as a step, STL, space claim, anything you want. You have all these capabilities. But for now, let's forget about it. And after that, we need to design the stator. So for the stator, you go downstream side.

You say new stator. Let's say we want to have it to be extended almost 120 millimeters. The interit. And after that, you need to have also blades. So you see, you want to do Vita blades. And then you click on the same type of tabs.

These are pretty much similar to what you had for the rotor or input. A little different. But I will say similarly, you guys, you gotta go step by step from left to right until you're finished and you hit the green button for completing the next step. Is that the Meridian contour?

Do a straight line. Let's say for leading edge, you assume it's to be just a straight line. For trailing edge, I want to have it as a little Bezier curve. I think we should be good. Then, we go to the hop design similarly to 20 millimeters radius. Okay. It's all good. Great.

So after that, I then just aim bezier and then repeat the refined til your ac withholding swag. Super. Go back to the previous tab more. Tap the second one. Is the blade design. The blade properties. So you see, okay, it says how many uh blades you recommend.

I mean, based on the impeller, it kind of gives you some recommendations. Let's see, I want to have maybe 10. It tells you if it's good or bad. I guess something went wrong. Let's say, okay. So if you have let's say templates, let's see. It says it's orange. Is too much. It's not a command.

That I guess it's too many. Let's just change it a little bit. Make it maybe five. Okay, I think it's allowed. It's good. We can go with this. Then, you have a lot of options for type of blade you're interested in. But I would keep it simple.

Let's say when the thickness is just simple three, like a straight number. And everything else is the default vectors. Meridian plot. Let's make it a little more fine. That's better. This is good. I think it's all good. Then, you go to the next tab, which is the blade angles.

Blade angles, they could be what it is. It sounds like a reasonable number. And I think we should be good. We go to the next step. Which is the blade mean lines. This is going to define how the curve is going to look like. It's very aggressive here, the angle, but you can play around with it.

You see, these are the blade mean lines. You can Define what you're looking for. It's not the best angle. I think it's very aggressive, probably. You can change it, but just to show you how it is being designed. I mean, you can.

Change all the parameters to make the angle the way you want, or give the curve the way you want. It definitely needs tweaking, but that's mostly when you're designing a table machine, you have to deal with it. Then, you go to the next tab, which is the thickness of the blade.

For the sake of simplicity, I mean, we just keep it as uniform, but you can put even profiles on it, airfoils on it. Then, you go to the leading edge and trailing edge. You want to have it simple. You want to have it elliptical or a smooth Bezier or linear.

I will just keep it elliptical, which is the default. And then, I think you're all done. All the buttons have been checked. So you just say check. And if you go to the 3D, here is the 3D cat that we have for it. There is a rotor and there is a stator. This one is rotating, and this one is staying.

You can even animate it. This is the impeller. This is the stator. Thank you guys for your attention. And if you have any more questions, I'll be happy to answer. Have a great day. Bye.