
Re: Pulsation in internal fluid simulation
Michael Smith Dec 16, 2010 3:53 PM (in response to Michael Smith)From what I have calculated the pump pulses at 70 times a min.

Re: Pulsation in internal fluid simulation
Joe Galliera Dec 20, 2010 5:29 PM (in response to Michael Smith)First, make sure you have it set as a timedependent problem under the General Settings. When you define your boundary condition, pressure or flowrate, simply click on the "f(x)" button next to the input. A new dialog opens where you can change the dependency from constant to a formula dependent on time or tablular data. In your case, a formula is best.
Make sure your pressure units are in mmHg before you define the formula. Define the formula in terms of A*sin(omega*t)+C. Using the values you gave, pressure would be: 170*sin(70/(2*pi)*t)+280. Now you may have to consider that Flow Sim only uses absolute pressure so if the numbers you provided are gage pressures then change the formula to add roughly 760 mmHg (or 14.7 psi) to the constant 280.

Re: Pulsation in internal fluid simulation
Michael Smith Dec 30, 2010 11:42 AM (in response to Joe Galliera)I will give that a try and report what happened.
