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Sun, 21 Nov 2010 17:01:04 +0000
flow/press equation
http://www.mathworks.com/matlabcentral/newsreader/view_thread/296993#798075
dex Hous
Hi everyone,<br>
<br>
I've come up with this flow equation to describe pressure in an air chamber<br>
However i don't know how to solve this ODE using Matlab, the appearance of p(t) in the equation for dp/dt confuses me.<br>
F(t) is a sine wave. <br>
<br>
dp(t)/dt = C*R1*dF(t)/dt – p(t)/R2 + (1+(R1/R2)*F(t)<br>
C and R1 are constants<br>
<br>
Greetings,<br>
<br>
marc

Sun, 21 Nov 2010 17:54:04 +0000
Re: flow/press equation
http://www.mathworks.com/matlabcentral/newsreader/view_thread/296993#798084
Roger Stafford
"dex Hous" <removethis@hotmail.com> wrote in message <icbj8g$m55$1@fred.mathworks.com>...<br>
> Hi everyone,<br>
> <br>
> I've come up with this flow equation to describe pressure in an air chamber<br>
> However i don't know how to solve this ODE using Matlab, the appearance of p(t) in the equation for dp/dt confuses me.<br>
> F(t) is a sine wave. <br>
> <br>
> dp(t)/dt = C*R1*dF(t)/dt – p(t)/R2 + (1+(R1/R2)*F(t)<br>
> C and R1 are constants<br>
> <br>
> Greetings,<br>
> <br>
> marc<br>
        <br>
If the sine wave F(t) and its derivative are known, then this is exactly the form of differential equation that the ode functions are designed to solve. Look up their documentation.<br>
<br>
Roger Stafford