sine function velocity - error - help needed

kmgraju · August 23, 2010, 03:20

I am useing sine function as my velocity input for my modeling
I need to clarify the following item
1. If I use sine function ( velocity as an input and t is a variable), what type of analysis can I do ? Transient or steady state analysis? I use transient analysis

while doing transient analysis the solver gives an error. I dont know where I made a mistake . I request anybody to help me in this regard

Thank you in advance

Govind

Lance · August 23, 2010, 04:18

Yes, you can do transient analysis if you have time as a variable... a time-varying boundary condition doesn't make much sense in a steady-state simulation. And if you want help you have to be more specific, what kind of error do you get and how does your expression look like? Post your .ccl?

By the way, isn't this the third thread you've made about exactly the same thing?

Josh · August 24, 2010, 20:07

What error are you getting? Like Lance says, we need more info.

kmgraju · August 28, 2010, 09:17

Hello Mr Lance and Jose
Sorry for the late reply.
I solved the problem .I just bring the mesh model into a different working directory then I tried. The problem has been solved. I dont know what is the reason.

Thank you

Govind

August 23, 2010, 03:20	sine function velocity - error - help needed	#1
kmgraju Senior Member Govindaraju Join Date: Apr 2010 Posts: 209 Rep Power: 17	I am useing sine function as my velocity input for my modeling I need to clarify the following item 1. If I use sine function ( velocity as an input and t is a variable), what type of analysis can I do ? Transient or steady state analysis? I use transient analysis while doing transient analysis the solver gives an error. I dont know where I made a mistake . I request anybody to help me in this regard Thank you in advance Govind

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Streamfunction?	cain	Main CFD Forum	5	July 19, 2012 10:05
Problem with compile the setParabolicInlet	ivanyao	OpenFOAM Running, Solving & CFD	6	September 5, 2008 20:50
[OpenFOAM] LibvtkFoamso	fred	ParaView	2	November 18, 2005 19:01
Terrible Mistake In Fluid Dynamics History	Abhi	Main CFD Forum	12	July 8, 2002 09:11
HELP - stream function from the velocity field	Fred	Main CFD Forum	10	January 26, 1999 12:58

August 23, 2010, 04:18		#2
Lance Senior Member Lance Join Date: Mar 2009 Posts: 669 Rep Power: 22	Yes, you can do transient analysis if you have time as a variable... a time-varying boundary condition doesn't make much sense in a steady-state simulation. And if you want help you have to be more specific, what kind of error do you get and how does your expression look like? Post your .ccl? By the way, isn't this the third thread you've made about exactly the same thing?

August 24, 2010, 20:07		#3
Josh Senior Member Joshua Counsil Join Date: Jul 2009 Location: Halifax, Nova Scotia, Canada Posts: 366 Rep Power: 17	What error are you getting? Like Lance says, we need more info.

August 28, 2010, 09:17		#4
kmgraju Senior Member Govindaraju Join Date: Apr 2010 Posts: 209 Rep Power: 17	Hello Mr Lance and Jose Sorry for the late reply. I solved the problem .I just bring the mesh model into a different working directory then I tried. The problem has been solved. I dont know what is the reason. Thank you Govind