AxSTREAM Forums http://softinway.com/forum This is an XML content feed of; AxSTREAM Forums : Last 10 Posts Copyright (c) 2006 Web Wiz Forums - All Rights Reserved. Sat, 31 Jul 2010 11:20:25 +0000 Tue, 26 Jan 2010 09:02:07 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 8.05a 30 softinway.com/forum/RSS_topic_feed.asp AxSTREAM Forums http://softinway.com/forum/forum_images/softinway.gif http://softinway.com/forum Conceptual Design of Turbomachinery : User Defined Working Fluid http://softinway.com/forum/forum_posts.asp?TID=100&PID=171#171 Author: SoftInWay
Subject: User Defined Working Fluid
Posted: 26 Jan 2010 at 9:02am

EDU version does not allow the usage of custom fluids. Instead you can use Ideal GAs model with custom R and k .
Custom Real Gas models are generated using REFPROP library for commercial clients only.
]]> Tue, 26 Jan 2010 09:02:07 +0000 http://softinway.com/forum/forum_posts.asp?TID=100&PID=171#171 Conceptual Design of Turbomachinery : User Defined Working Fluid http://softinway.com/forum/forum_posts.asp?TID=100&PID=170#170 Author: legend
Subject: User Defined Working Fluid
Posted: 25 Jan 2010 at 9:08pm

Hello!
 
We've already got the following working fluid, how can we define a working fluid by ourselves? For example, syngas. Thanks!
 
-AxS Ideal Gas
-AxS Natural Gas
-AxS Kerosene
-AxS Methane
-AxS Steam
-AxS RLG Steam_T
-AxS TPG Air
 
 
Jia
Tsinghua University
Beijing, China
]]> Mon, 25 Jan 2010 21:08:02 +0000 http://softinway.com/forum/forum_posts.asp?TID=100&PID=170#170 Conceptual Design of Turbomachinery : water or wind Turbine CFD http://softinway.com/forum/forum_posts.asp?TID=99&PID=169#169 Author: SoftInWay
Subject: water or wind Turbine CFD
Posted: 12 Nov 2009 at 9:26am

Sorry, but this time AxSTREAM run compressible fluids (gases) only. So water turbine is out of scope for a while

About wind turbines - AxSTREAM calculates turbine cascades with solidity >1]]> Thu, 12 Nov 2009 09:26:13 +0000 http://softinway.com/forum/forum_posts.asp?TID=99&PID=169#169 Conceptual Design of Turbomachinery : water or wind Turbine CFD http://softinway.com/forum/forum_posts.asp?TID=99&PID=168#168 Author: jiku_crack
Subject: water or wind Turbine CFD
Posted: 07 Nov 2009 at 9:33pm


We are a small company trying to see if CFD can predict the water turbine performance. At the first place we would like to find out the rotation of turbine blade for a given flow condition typical inlet velocity and atmos pressure outlet condition.

Do you think  AxStream can predict the turbine blade rotation (rpm) just by supplying the inlet flow velocity.  I dont want to take the rout of simulation the flow with MRF approach as this would require me to supply rpm as a input.

Do u also think that 6dof type study is fesiable for this kind of flows?
]]> Sat, 07 Nov 2009 21:33:28 +0000 http://softinway.com/forum/forum_posts.asp?TID=99&PID=168#168 Conceptual Design of Turbomachinery : axial in, radial out turbine. http://softinway.com/forum/forum_posts.asp?TID=95&PID=165#165 Author: flyingbird
Subject: axial in, radial out turbine.
Posted: 04 Aug 2009 at 2:55am

Thank you SoftInWay for the quick reply.

It's clear to me now, that, it's hard but it is possible. I will go on with this!

thank you once again.


]]> Tue, 04 Aug 2009 02:55:44 +0000 http://softinway.com/forum/forum_posts.asp?TID=95&PID=165#165 Conceptual Design of Turbomachinery : axial in, radial out turbine. http://softinway.com/forum/forum_posts.asp?TID=95&PID=163#163 Author: SoftInWay
Subject: axial in, radial out turbine.
Posted: 03 Aug 2009 at 11:32pm

Hi flyingbird,
 

Axial_in/radial_out is very unflavored variant as  it is hard to provide confusor-type channel on outlet and gas moves against centrifugal forces

Turbocharger’s  turbines usually are so named “inward flow” i.e. radial_in/axial_out or “axial flow” i.e.axial_in/axial_out

]]> Mon, 03 Aug 2009 23:32:38 +0000 http://softinway.com/forum/forum_posts.asp?TID=95&PID=163#163 Conceptual Design of Turbomachinery : axial in, radial out turbine. http://softinway.com/forum/forum_posts.asp?TID=95&PID=162#162 Author: flyingbird
Subject: axial in, radial out turbine.
Posted: 03 Aug 2009 at 2:46pm

Hi all,

Is there a possibility for axial in and radial out turbine?

can we use this kind of turbine on an automobile turbocharger?

thanks in advance.
]]> Mon, 03 Aug 2009 14:46:01 +0000 http://softinway.com/forum/forum_posts.asp?TID=95&PID=162#162 Conceptual Design of Turbomachinery : Axial flow compressor design for low cost turbojet http://softinway.com/forum/forum_posts.asp?TID=93&PID=161#161 Author: SoftInWay
Subject: Axial flow compressor design for low cost turbojet
Posted: 02 Aug 2009 at 1:13pm

Compressor design is very complicated task so we think that it is rather student homework then commercial.
As a rule we don't help in student's homework. Other thing if you a student you can ecourage your professor to join to AxSTREAM Educational program.
 
Meanwile try to look to Aungier. "Axial Compressors Design". It is may be most useful book in branch.
]]> Sun, 02 Aug 2009 13:13:49 +0000 http://softinway.com/forum/forum_posts.asp?TID=93&PID=161#161 Conceptual Design of Turbomachinery : Axial flow compressor design for low cost turbojet http://softinway.com/forum/forum_posts.asp?TID=93&PID=159#159 Author: welcomes
Subject: Axial flow compressor design for low cost turbojet
Posted: 30 Jul 2009 at 4:39pm

Hi all, I need help in designing an axial flow compressor for a low cost turbo-jet.  I'm new in this industry and need help. I prefer to do it manually.  Can anyone help with me with the different steps to follow in order to complete the design?]]> Thu, 30 Jul 2009 16:39:00 +0000 http://softinway.com/forum/forum_posts.asp?TID=93&PID=159#159 Conceptual Design of Turbomachinery : axial compessor calculations http://softinway.com/forum/forum_posts.asp?TID=90&PID=155#155 Author: SoftInWay
Subject: axial compessor calculations
Posted: 30 Jun 2009 at 3:37am

 
This question is often asked on forum.
 
AxSTREAM uses “air excess factor” AEF is a ratio of total air mass to stoichiometric mass of air.
 
In brief "stoichiometric mass " is mass of air necessary for full combustion of unit of fuel. It strongly depends on fuel composition and is provided for each fuel in chemistry textbooks or fuel manufacturer specification
]]> Tue, 30 Jun 2009 03:37:31 +0000 http://softinway.com/forum/forum_posts.asp?TID=90&PID=155#155