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How to set a boundary condition as a function respect to time

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Old   June 15, 2005, 04:32
Default Hi, everybody. I want to si
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Hi, everybody.

I want to simulation a dynamic process of vibration of a pipe.on the one side, I'd like to set the boundary's pressure as a function respect to time. how should I do?
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Old   June 15, 2005, 04:43
Default please start by searching this
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Old   June 17, 2005, 04:18
Default Thank u, N. But when I make a
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Thank u, N.
But when I make a data file in the same way. there is a error:

Create time
Create mesh for time = 0
Reading thermodynamicProperties
Reading transportProperties
Reading field p


--> FOAM FATAL IO ERROR : IOstream::check(const char* operation) : error in IOstream "inletPressure.dat" for operation Istream::operator()

file: inletPressure.dat at line 1.

Function: IOstream::check(const char* operation) const
in file: db/IOstreams/IOstreams/IOcheck.C at line: 54.

FOAM exiting


MY data file is the following style:

(
t0 p0
t1 p1
...
tN pN
)

What's wrong?

Thanks in advance.
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