CONFLOl, 2 and 3 - Continuous Flow Tank

Liquid flows from an upstream source, at pressure Pi, via a fixed position valve into the tank, at pressure P2. The liquid in the tank discharges via a second fixed position valve to a downstream pressure P3. The tank can be open to atmosphere, closed off to the atmosphere and can work either under isothermal or adiabatic temperature conditions. The detailed derivation of this problem is discussed both by Franks (1972) and Ramirez (1976, 1989). Data values in the problem are similar to those of Ramirez, who also made simulations of this problem. 

The flow through each fixed position valve is given by 

Both the upstream pressure P, and final downstream pressure P3 are fixed, together with the atmospheric pressure Pq. 

The above model equations are also presented in dimensionless terms by Ramirez (1989). 

The programs for the open tank (CONFLOl), for the closed isothermal tank (C0NFL02) and for the closed adiabatic tank (C0NFL03) are given below. 

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