S.L. Arsenjev

Physical-Technical Group

Dobroljubova Street, 2, 29, Pavlograd Town, Dnjepropetrovsk region, 51400 Ukraine

The solution of problem on distribution of static pressure in the real gas stream along the pipe flow element is for the first time achieved. The solution is obtained on a basis of consideration of contact interaction of the real fluid - gas and liquid - stream with the pipe wall. Physically adequate and mathematically correct expressions for the static pressure distribution are obtained by means of use of three fundamental laws in fluid dynamics: Torricelli formula, Bernoulli equation and Weissbach-Darcy formula. General solution is obtained for the gas stream.

Special case of the obtained general solution is derived for the liquid stream.

**PACS:** 01.40.Fk; 01.55.+b; 01.65.+g; 01.70.+w; 05.65.+b; 07.20.Pe; 47.60.+I; 47.85.-g

**Nomenclature**