OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › rho vs. rho +/- 1 (esp. for computePressureField()) › Re: rho vs. rho +/- 1 (esp. for computePressureField()) June 28, 2013 at 4:10 pm #2105 Randy RobertsMember Correction:rn I meant for the c^2 term to be multiplied, not divided. rnrnCorrected question 2)…rnrn2) Why is pressure calculated the way it is (shown below)? Isn’t the equation of staternp = rho*c^2,rnnotrnp = (rho-1)*c^2rn