1. Pressure drop accompanying two-component flow through pipes.;Boelter;IEC,1939
2. Some problems in the hydrodynamics of joint transport of gas and liquid.;Mamaev;Int. Chem. Eng.,1965
3. An investigation of the influence of diameter and inclination of a tube on the hydraulic resistance and flow structure of gas-liquid mixtures.;Kosterin;Izv. Akad Nauk SSSR Otd Tekh Nauk.,1949
4. The flow of the mixture of air and water III. The friction loss in horizontal, inclined and vertical tubes;Akagawa;Trans Jap. Soc. Mech. Eng.,1957
5. How uphill and downhill flows affect pressure drop.;Brigham;Oil Gas J.,1957