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Anyway I am working on a big centrifugal fan and Im trying to optimise the shape to be as efficient as I can get away with.
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Im thinking if I want to make it as energy efficient as possible a smaller fan with around 5 blades would be best simply because it would allow you to make the blades out of thinner material and thus much lighter. I have ventured into new territory with flow simulation recently and I feel like I have the basics down so this might be more of an engineering question than Solidworks. The number of blades would probably be the same type of trade off but just under a smaller area.
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Also length im assuming would increase airflow along with increasing the area of the flow while costing weight. I mean i understand the angle would determin how much air you push along with the direction so something between 20-45 degrees is probably reasonable. I haven't found much as far as getting specific details. I guess its more just figuring out what changing the angle of the blades or the number and length etc would do. So itll probably just be flat simple blades. Yes our goal is actually to build a very simple fan. Use the papers you read as your justification for this choice. Pick the one you think is best and use that to design your fan. Find the difference between swept and straight blade fan profiles and how they compare to radial impeller style fans. If you absolutely Have to design a fan start reading papers on fan blade profile optimization and use them as a starting point. Since cost is very likely a factor you are going to end up using an off the shelf fan and you just need to pick the best one. We have been making fans for a few hundred years and you are not going to be able to improve on it in a few month long final design course. Seriously though, don't try and re-invent the wheel.
#Fan operating point solidworks flow simulation full
This is a hyper-simplistic method and neglects several very important things like energy consumption and vortex formation but if you only are capable of doing a full analysis on one profile that would be a good place to start. My preference and recommendation is to descriptively name projects so that you know exactly which project to select.Alternatively, as a hack and slash ghetto-tastic solution you could conceivably do it backwards by simulating the airflow you want over a stationary solid fan model and looking for things like wonky pressure gradients. You may not have known that you can change this option, but if you click on the box that reads “User defined,” you’ll find that a down arrow on the right-hand side tell you there is a menu to select from so this is where you’ll see “Transferred.” You have the option of either starting from a named project or from a results file (where you’ll have to Browse to the correct steady state project folder number). This is done either done through the Wizard (when initially setting up a problem from scratch) or in the General settings (when the study has already been defined or cloned). The key to the problem is changing from “User defined” to “Transferred” in the Parameter Definition option of “Initial and Ambient conditions,” see image below. How do I run a Transient problem when I need to start with some steady results? But since the heat source is controlled by a thermostat, the power will turn on and off in time so I need to run this as a transient solution. Thus I would need to first develop the flow field inside the channel, so I set up a separate steady state project to do this. Say I have an example where there is a water channel flowing constantly to cool the plate above it that is heated by a thermostatically controlled source. I thought that I’d write a quick post for current users of SOLIDWORKS Flow Simulation who are looking for a more advanced tip.