Creating turbulence in a small tube

AI Thread Summary
The discussion centers on the creation of turbulence within a larger chamber to enhance air mixing and cooling efficiency. The original poster seeks to understand whether inserting an exit tube into the chamber will promote turbulence or create a high-pressure stagnation zone that could hinder heat transfer. Participants suggest that a flush-mounted exit tube may be more effective for maintaining airflow. The Reynolds Number is mentioned as a relevant equation for assessing flow turbulence. Overall, the conversation emphasizes the importance of design parameters in optimizing airflow and cooling performance.
Dull Tool
Messages
2
Reaction score
0
TL;DR Summary
My question is will this cause turbulence in the larger chamber so that the air from the Yellow Question mark area is being pulled and mixed with the air from the intake area? Is there an equation I can use to know the best depth range to test the set the smaller chamber at? See picture
Dull_tool.jpg

I have an odd question or a project I have been bouncing around in my head and I want to make sure that I am understanding the science of it all correctly. My question is will this cause turbulence in the larger chamber so that the air from the Yellow Question mark area is being pulled and mixed with the air from the intake area? Is there an equation I can use to know the best depth range to test the set of the smaller chamber at? I understand I am going to have to build protypes and get my Dr. Tyson on. I just like to set parameters so I do not have to build more units than necessary. Arrows are air flow. So air is drawn in the over lay, up the heat sink, in the heat sink, into the chamber, then out the exit tube.

I mainly want to know if this will help cool the heated area faster by drawing more heat from causing turbulence in the chamber, as apposed to the exit tube being flush with the end of the chamber.

Thank you all I hope I made it clear what I'm asking.
 
Last edited:
Engineering news on Phys.org
I read your question as should the dashed portion of the exit tube should be inserted into the chamber as-drawn if the goal is to promote turbulent flow within the chamber.

My intuition says this will be more likely (relative to the likeliehood of creating turbulence) to create a high pressure stagnation zone behind the inserted portion of the tube and tend to decrease the overall heat-transfer along the walls of the chamber. I intuit that you are better off with a flush mount exit, for what that opinion is worth. As drawn, I don't see anything that will promote flow to the right of the low pressure point at the mouth of the outlet tube.
 
Grinkle said:
I read your question as should the dashed portion of the exit tube should be inserted into the chamber as-drawn if the goal is to promote turbulent flow within the chamber.

My intuition says this will be more likely (relative to the likeliehood of creating turbulence) to create a high pressure stagnation zone behind the inserted portion of the tube and tend to decrease the overall heat-transfer along the walls of the chamber. I intuit that you are better off with a flush mount exit, for what that opinion is worth. As drawn, I don't see anything that will promote flow to the right of the low pressure point at the mouth of the outlet tube.
Ty I can’t remember what it’s called but I was trying to do the old put the fan a few feet from the window trick to improve the air movement in the chamber…. I’m sorry I just had an epiphany I got to go jot this down before my sleep demanding brain forgets. Thank you you helped more than you know.
 
Go to 14:30 in this video to see how this guy made his intakes, they seemed to do what he wanted.

Mikek
 
Dull Tool said:
TL;DR Summary: My question is will this cause turbulence in the larger chamber so that the air from the Yellow Question mark area is being pulled and mixed with the air from the intake area? Is there an equation I can use to know the best depth range to test the set the smaller chamber at? See picture

View attachment 321957
I have an odd question or a project I have been bouncing around in my head and I want to make sure that I am understanding the science of it all correctly. My question is will this cause turbulence in the larger chamber so that the air from the Yellow Question mark area is being pulled and mixed with the air from the intake area? Is there an equation I can use to know the best depth range to test the set of the smaller chamber at? I understand I am going to have to build protypes and get my Dr. Tyson on. I just like to set parameters so I do not have to build more units than necessary. Arrows are air flow. So air is drawn in the over lay, up the heat sink, in the heat sink, into the chamber, then out the exit tube.

I mainly want to know if this will help cool the heated area faster by drawing more heat from causing turbulence in the chamber, as apposed to the exit tube being flush with the end of the chamber.

Thank you all I hope I made it clear what I'm asking.
You asked if there was an equation used to determine turbulence in flow and there is one. You might want to look into the Reynolds Number. https://www.engineeringtoolbox.com/reynolds-number-d_237.html
 
Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
Thread 'What's the most likely cause for this carbon seal crack?'
We have a molded carbon graphite seal that is used in an inline axial piston, variable displacement hydraulic pump. One of our customers reported that, when using the “A” parts in the past, they only needed to replace them due to normal wear. However, after switching to our parts, the replacement cycle seems to be much shorter due to “broken” or “cracked” failures. This issue was identified after hydraulic fluid leakage was observed. According to their records, the same problem has occurred...
Back
Top