# Numerical parameter file (MaplesonModelP_numpar.txt) # Generated by MTT at Mon Aug 11 14:45:13 BST 1997 # %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% # %% Version control history # %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% # %% $Id$ # %% $Log$ # %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% # Parameters # Modified 17/11/93 to correspond to Mapleson's 1973 paper. # Like model O except that blood has its own pools distinct form the tissues. Heart_interval = 1.0/60.0; Breathing_interval = 4*Heart_interval; Stroke_volume = 0.108; lambdaBlood = 0.46; vArterial = 1.4; vVenous = 4.0; # %%%%%%%%%%%%%%%%%% Inspiration %%%%%%%%%%%%%%%%%%%%%%%%%%% v_i = 0.4; r_i = Breathing_interval/v_i; # %%%%%%%%%%%%%%%%%% Lung %%%%%%%%%%%%%%%%%%%%%%%%%%% vLung = 0.6; vPLung = 0; vGas = 2.5; lambdaLung = 0.46; c_i = lambdaLung*(vLung + vPLung) + vGas; t_i = r_i*c_i; # %%%%%%%%%%%%%%%%%% Brain %%%%%%%%%%%%%%%%%%%%%%%%%%% kB = 0.000086; vB = 0.0007; vBP = 0.0; lambdaB = 0.46; c_b = lambdaB*vB + lambdaBlood*vBP; r_b = Heart_interval/(kB*lambdaBlood*Stroke_volume); t_b = r_b*c_b; # %%%%%%%%%%%%%%%%%% Viscera %%%%%%%%%%%%%%%%%%%%%%%%%%% kV = 0.63; vV = 6.2; lambdaV = 0.46; vVP = 0; c_v = lambdaV*vV + lambdaBlood*vVP; r_v = Heart_interval/(kV*lambdaBlood*Stroke_volume); t_v = r_v*c_v; # %%%%%%%%%%%%%%%%%% Lean %%%%%%%%%%%%%%%%%%%%%%%%%%% kL = 0.131; vL = 39.2; lambdaL = 0.46; vLP = 0; c_l = lambdaL*vL + lambdaBlood*vLP; r_l = Heart_interval/(kL*lambdaBlood*Stroke_volume); t_l = r_l*c_l; # %%%%%%%%%%%%%%%%%% Fat %%%%%%%%%%%%%%%%%%%%%%%%%%% kF = 0.04; vF = 12.2; lambdaF = 1.40; vFP = 0; c_f = lambdaF*vF + lambdaBlood*(vFP); r_f = Heart_interval/(kF*lambdaBlood*Stroke_volume); t_f = r_f*c_f; # %%%%%%%%%%%%%%%%%% Shunt %%%%%%%%%%%%%%%%%%%%%%%%%%% kS = 0.199; vSP = 0.126*vVenous; c_s = lambdaBlood*(vSP); r_s = Heart_interval/(kS*lambdaBlood*Stroke_volume); t_s = r_s*c_s; # %%%%%%%%%%%%%%%%%% Time constants %%%%%%%%%%%%%%%%%%%%%%%%%%% t_1 = t_b*t_v*t_l*t_f*t_s; t_2 = t_1*t_i; # %%%%%%%%%%%%%%%%%% Convert from rs to ks %%%%%%%%%%%%%%%%%%%% k_b = 1/r_b; k_v = 1/r_v; k_l = 1/r_l; k_f = 1/r_f; k_s = 1/r_s; k_i = 1/r_i; # %%%%%%%%%%%%%%%%%% Arterial pools %%%%%%%%%%%%%%%%%%%%%%%%%%% # Two pool version aPools = 2; vAP = vArterial; c_ap = lambdaBlood*(vAP)/aPools; r_ap = Heart_interval/(lambdaBlood*Stroke_volume); # %%%%%%%%%%%%%%%%%% Venous pools %%%%%%%%%%%%%%%%%%%%%%%%%%% # Two pool version vPools = 2; vVP = vVenous - vSP; c_vp = lambdaBlood*(vVP)/vPools; r_vp = Heart_interval/(lambdaBlood*Stroke_volume); k_ap = 1/r_ap; k_vp = 1/r_vp;