CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS

How to set the velocity inlet angle for cassette air conditioner

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree4Likes
  • 1 Post By Xiang
  • 1 Post By Светлана
  • 1 Post By Xiang
  • 1 Post By Светлана

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 6, 2017, 21:38
Default How to set the velocity inlet angle for cassette air conditioner
  #1
New Member
 
Selangor
Join Date: Jun 2017
Posts: 7
Rep Power: 5
Xiang is on a distinguished road
Hi there,

I have issues with setting the velocity angle, I'm not too sure how to begin as I'm new to this software. Hope that someone could help me with the velocity inlet angle setup.
Attached Images
File Type: jpg inlet.jpg (48.6 KB, 16 views)
File Type: jpg velocity inlet setup.jpg (85.8 KB, 14 views)
Светлана likes this.
Xiang is offline   Reply With Quote

Old   June 7, 2017, 00:24
Default Cartesian components
  #2
Senior Member
 
Svetlana Tkachenko
Join Date: Oct 2013
Location: Australia, Sydney
Posts: 378
Rep Power: 10
Светлана is on a distinguished road
It is probably more intuitive to specify the velocity Cartesian components (rather than magnitude and direction). Do a hand calculation to find what the components are, and then put them into CFX.
Xiang likes this.
Светлана is offline   Reply With Quote

Old   June 7, 2017, 01:50
Default
  #3
New Member
 
Selangor
Join Date: Jun 2017
Posts: 7
Rep Power: 5
Xiang is on a distinguished road
Hi Светлана,

Thanks for the quick response and the suggestion. Appreciate it a lot. I did some manual calculation but i'm not sure whether is right. The following attachments are the calculations i did, would u mind checking it for me?

Mistake on the calculation: x-component is +5.2 m/s & z-component is +5.2 m/s
Attached Images
File Type: jpg velocity cartesian.jpg (54.1 KB, 10 views)
File Type: jpg velocity cartesian 2.jpg (65.2 KB, 10 views)
Светлана likes this.
Xiang is offline   Reply With Quote

Old   June 8, 2017, 22:48
Default Confirm angles
  #4
Senior Member
 
Svetlana Tkachenko
Join Date: Oct 2013
Location: Australia, Sydney
Posts: 378
Rep Power: 10
Светлана is on a distinguished road
It looks confusing, let's start with talking about what information you already know. Did I draw it correctly in the attachment? Angle BAC is 30, and angle BAD is 45?
Attached Images
File Type: png 1.png (7.5 KB, 8 views)
Xiang likes this.
Светлана is offline   Reply With Quote

Old   June 9, 2017, 04:00
Default Sorry for the confusion
  #5
New Member
 
Selangor
Join Date: Jun 2017
Posts: 7
Rep Power: 5
Xiang is on a distinguished road
Hey,

So sorry for the confusions. I had calculated wrongly and the following pictures are the correct 1. Hope that it is clearer to you this time.

Thank you.
Attached Images
File Type: jpg 1st calculation.jpg (75.9 KB, 9 views)
File Type: jpg 2nd calculation.jpg (60.9 KB, 8 views)
Xiang is offline   Reply With Quote

Reply

Tags
air condition simulation, velocity angle, velocity inlet

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ansys Licence Serve on Ubuntu 16.04 LTS david.pasquale ANSYS 2 January 20, 2017 11:52
A rotating blunt body within a "box" of air at an angle? li0012in CFX 1 January 11, 2012 19:25
How to set pressure & velocity in inlet B.C??? asghari FLUENT 2 February 7, 2007 08:00
Urgent! Help on UDF to set inlet velocity Ray Hong FLUENT 4 December 30, 2005 12:32
Cannot set correct inlet velocity by UDF?!? Bob FLUENT 5 March 27, 2003 03:17


All times are GMT -4. The time now is 16:02.