Devlog #10

##Finally completed the design🎉

##What i did

1. Redesigned top and front side of tunnel

• Added 10mm offseted holder for acrylic sheet for stregth
• Previous design didnt had holder for acrylic sheet

Devlog #9

What i did

1. Added exhaust fan holder at back
2. Improve BOM as per request

Devlog #8

##What i did

1. Redesigned whole mist maker

Changes in Mist maker

• Changed overall shape from Square to cylindrical
• Also redesigned new cap with slide in design to avoid accidental fall and water spalsh
• Increased wall thickness to avoid water leak

Devlog #7

What i did

• Tunnel part is mostly done
• But i need a big refactor in design of mist maker and exhaust fan
• They need some big decision changes

Devlog #6

What i did

• Update repo with every details like CAD files, wiring and BOM.csv
• Also finalized the CAD design

Devlog #5

Design

• I finally designed the front air intake and main testing area in CAD. I also applied appropriate textures, such as clear polycarbonate, to the front and top sections of the testing rig.
• Also added a hexagonal pattern to the front.
• Next, I’m going to work on the back section and a separate mist generator.

Dimensions

1. Front air intake

   • 8 inch × 8 inch (W × H)
   • 10 mm fillet
   • 5 mm border

2. Hexagonal pattern

   • 20 mm diameter
   • 2.033 mm border
   • 70 mm length

3. Main testing rig

   • 12 inch × 8 inch × 8 inch (L × W × H)

Devlog #4

Smoke generation -

• Previously i was having hard time deciding how to generate smoke but later upon searching for solution i found way better way called Water Mist
• They are better than tradition ways like burning mineral/baby oil due to their temp. Acc to previous devlog hot air needs to be cooled to achieve laminar flow and water mist remove entire process of cooling
• They are easier to be sustainable since everyone has access to water (not for long due to AI).

Design

• I also started designing it in CAD , things like front air intake, mist generator and etc.
• Currently im working on hexagonal pattern inside front air intake to straighten mist before it gets to test area.

Devlog #3

Thing i did -

• Researched about others wind tunnel project and their most occurred failures
• Deigned smoke straighter in Hexagonal shape

Contraint in current design/plan

• Currently im most confused in generating smoth laminar smoke, i searched about some ways like heating mineral oil or baby oil but i want this design to be beginner friendly and non-envasive.
• Also if i go with the heating methods i would need to somehow cool the smoke to make it laminar since i heard hot air dont flow as smoothly as cold one.

this ss shows one of the problem faced by some fellow peer who also made a wind tunnel.

Devlog #2

Things i did -

• Finalized fan at front to suck smoke
• Finalized dimensions
• Finalized sensors to use (yet to find on merchant website)
• Almost completed power circuit plan

Devlog #1

Design

• i started designing the project like which data’s to measure, their required sensors and documented them in my notebook.

Components

• made a list of component which im gonna need for BOM