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 April 9th, 2012, 06:48 PM #1 Senior Member   Joined: Jan 2009 Posts: 345 Thanks: 3 Differential equations tank problem Two large tanks, each holding 100 L of liquid, are interconnected by pipes, with the liquid flowing from tank A into tank B at a rate of 3 L/min and from B into A at a rate of 1L/min. The liquid inside each tank is kept well stirred. A brine solution with a concentration of 0.2Kg;L of salt flows into tank A at a rate of 6L/min. The (diluted) solution flows out of the system from tank A at 4L.min and from tank B at 2L/min. If, initially, tank A contains pure water and tank B contains 20Kg of salt, determine the mass of salt in each tank at time t>=0.
 April 12th, 2012, 01:09 PM #2 Senior Member   Joined: Oct 2011 From: Belgium Posts: 522 Thanks: 0 Re: Differential equations tank problem x=mass salt in tank A y=mass salt in tank B $\dot{x}=-0.03x+0.01y+6*0.2-0.04x$ $\dot{y}=0.03x-0.01y-0.02y$
 April 16th, 2012, 01:28 PM #3 Senior Member   Joined: Jan 2009 Posts: 345 Thanks: 3 Re: Differential equations tank problem

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# double tank equations

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