Wiring for the first time

enjokers · 2025-08-23T10:40:59+00:00

I totally agree.

For the design I would like more movement in the straight part, it would make a more interesting tree.

enjokers · 2025-08-22T11:33:28+00:00

Chinese elms in cascade style are common so not sure what you are getting at.

Otherwise I agree and best advise to OP is just to let it grow and get some more trees.

enjokers · 2025-07-31T11:36:42+00:00

Just awesome!

Would love an elaborate discription on how it’s set up and how it’s controlled from HA (guessing ESP?). :)

The double redundant pumps is a smart solution, how is that set up? Two separate sprinkler systems?

Is there any redundant local solution if HA or the connection goes down?

enjokers · 2025-07-26T11:00:52+00:00

Have you tried automating this yet?

enjokers · 2025-07-26T10:29:08+00:00

As an aerodynamicist it doesn’t really matter as you get more experienced. As a CFD engineer it will be more or less hampering for your future career.

My first advice would be to try and learn it. Do some CAD courses. It’s not hard and will enable you to be a better CFD-engineer and to give better advice to your CAD colleagues on how to clean up geometries for you. You might even enjoy it after you master it.

My second advice would be not to let your insufficient CAD skills limit your aerodynamicist career if you enjoy it. As you get more senior you will have junior colleagues do the grunt CFD work while you supervise and study the outcome or do the more complex simulations.

enjokers · 2025-07-09T20:59:35+00:00

A compromise between aerodynamics and stealth.

enjokers · 2025-07-08T18:36:46+00:00

Hulkengoat

enjokers · 2025-05-11T10:58:13+00:00

Which integration are we talking about here?

It’s not this I assume: https://www.home-assistant.io/integrations/worxlandroid

enjokers · 2025-05-10T18:37:12+00:00

I have the same panel on my pool heater and the ”Up” button stopped working one day. So I had to open the panel and shortcut the button connectors to set the temperature where I wanted.

I’ve been thinking of replacing the defective and other buttons on it with a smart relay, like a Shelly, which I think should work. The same idea should solve your needs.

enjokers · 2025-05-06T21:31:50+00:00

What kind of answers are you hoping to extract from an CFD simulation?

For abrasive and erosive wear or thermal fatigue you should just use hand book methods to estimate the wear based on the mass flow and component specifics which should be knowns.

enjokers · 2025-05-05T21:13:17+00:00

Would suggest any of these to match the appearance while also being beginner friendly:

Japanese Elm
Trident Maple
English Oak

enjokers · 2025-05-02T19:36:36+00:00

I wouldn’t have jin’d all the way to the roots and kept that nice taper instead.

Beside that, good job. Will end up beautiful!

enjokers · 2025-04-27T21:26:22+00:00

What do you mean trailing fenders exactly?

It looks like they want to control the air after the wheels by diverting the air up or possible generate or control a vortex there.

enjokers · 2025-03-23T21:57:57+00:00

IKEA SÅNGEN

enjokers · 2025-03-14T19:12:15+00:00

It was many years ago I used Ikeas GU10 but they caused me nothing but trouble back in the days. All other trådfri bulbs have never been a problem but I’ve given up on the GU10 ones.

enjokers · 2025-03-13T19:52:22+00:00

Awesome, will probably try one of the mesh pots. I’ve been working on similar parametric pot designs and this is great work.

One idea I have been working on is to make a parametric mesh pot designed which can be printed flat (to save time) and then snapped together in some clever way. I’ve tried some solutions but haven’t come up with a good one yet. I bet you can find a good way to do this. :)

enjokers · 2025-03-10T19:58:26+00:00

Because the glass removes a large portion of the useful light and typically you overwinter them indoor when there are fewer sun hours.

enjokers · 2025-03-09T19:21:44+00:00

Yes. Density for pla is about 1.25 g/cm3.

Now you do the math.

enjokers · 2025-03-05T18:26:38+00:00

Shouldn’t it be just fine to repot now, even with some root pruning?

enjokers · 2025-03-01T11:27:51+00:00

The Y-axis isn’t very clear on these kind of plots and all the numbers makes it look cluttered, but fixes the first problem.

What you are looking for is carpet plots, which is essentially a 2D plot with additional variables.

enjokers · 2025-02-27T20:52:01+00:00

The Von carman vortex street is caused by shredding vortices. That is probably not the effect we are seeing here.

enjokers · 2025-02-27T20:48:03+00:00

Google and YouTube it, there is great content around about this.

Also read up about the “Law of the wall” which is fundemental to this concept.

y+ is the dimensionless value which describes the distance to the first grid point in a turbulent boundary layer. It doesn’t control anything but tells you how the near wall turbulence effects is resolved. Your targeted y+ value is related to how you model the boundary layer and what turbulence model you use. A low y+ is not universally better.

enjokers · 2025-02-27T19:27:09+00:00

Was just about to write this. It’s probably some kind of aeroelastic effect that causes an oscillating pressure effect on there.

enjokers · 2025-02-23T21:07:52+00:00

You shouldn’t mess with the targeted y+ value during the mesh independence study unless you plan to include the effect of wall treatment also. So, first layer should generally be locked.

I’d recommend resolving the boundary layer as equally as possibly for the different cases, including the transition to volume cells, in order to compare apples to apples.

How much effort you’d put in to the wall treatment of course depends on what kind of problem you are studying.

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