public static Blood Default()
{
var blood = new Blood
{
Water = 0,
SmallWasteProducts = 0,
BigWasteProducts = 0,
HasHeparin = false,
ChemicalCompositionOk = true,
GasFree = false,
Pressure = QualitativePressure.NoPressure,
Temperature = QualitativeTemperature.TooCold
};
return(blood);
}
public void SetBloodFlow(Blood toSuccessor, Blood fromPredecessor)
{
if (fromPredecessor.Water > 0 || fromPredecessor.BigWasteProducts > 0)
{
toSuccessor.CopyValuesFrom(fromPredecessor);
if (IncomingQuantityOfDialyzingFluid > 0)
{
toSuccessor.Temperature = IncomingFluidTemperature; //otherwise keep blood temperature
}
// First step: Filtrate Blood
if (IncomingQuantityOfDialyzingFluid >= toSuccessor.SmallWasteProducts)
{
toSuccessor.SmallWasteProducts = 0;
}
else
{
toSuccessor.SmallWasteProducts -= IncomingQuantityOfDialyzingFluid;
}
// Second step: Ultra Filtration
// To satisfy the incoming suction rate we must take the fluid from the blood.
// The ultrafiltrationRate is the amount of fluid we take from the blood-side.
var ultrafiltrationRate = IncomingSuctionRateOnDialyzingFluidSide - IncomingQuantityOfDialyzingFluid;
if (ultrafiltrationRate >= 0)
{
if (ultrafiltrationRate < toSuccessor.BigWasteProducts)
{
toSuccessor.BigWasteProducts -= ultrafiltrationRate;
}
else
{
// Remove water instead of BigWasteProducts
// Assume Water >= (ultrafiltrationRate - toSuccessor.BigWasteProducts)
toSuccessor.Water -= (ultrafiltrationRate - toSuccessor.BigWasteProducts);
toSuccessor.BigWasteProducts = 0;
}
}
}
else
{
toSuccessor.CopyValuesFrom(fromPredecessor);
}
if (!MembraneIntact)
{
toSuccessor.ChemicalCompositionOk = false;
}
}