47 citations · 278 across the 9 of their papers we have counts for
6 papers · 1 filter
Accurate and efficient explicit approximations of the Colebrook flow friction equation based on the Wright-Omega function
Dejan Brkić, Pavel Praks
The Colebrook equation is a popular model for estimating friction loss coefficients in water and gas pipes. The model is implicit in the unknown flow friction factor f. To date, th…
Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow
Dejan Brkic, Pavel Praks
This paper gives a new unified formula for the Newtonian fluids valid for all pipe flow regimes from laminar to the fully rough turbulent. It includes laminar, unstable sharp jump…
Symbolic regression based genetic approximations of the Colebrook equation for flow friction
Pavel Praks, Dejan Brkic
Widely used in hydraulics, the Colebrook equation for flow friction relates implicitly to the input parameters; the Reynolds number, and the relative roughness of inner pipe surfac…
Choosing the optimal multi-point iterative method for the Colebrook flow friction equation -- Numerical validation
Pavel Praks, Dejan Brkic
The Colebrook equation is implicitly given in respect to the unknown flow friction factor ; which cannot be expressed explicitly in exact way without simplif…
Advanced iterative procedures for solving the implicit Colebrook equation for fluid flow friction
Pavel Praks, Dejan Brkic
Empirical Colebrook equation from 1939 is still accepted as an informal standard to calculate friction factor during the turbulent flow through pipes from smooth with almost neglig…
One-Log Call Iterative Solution of the Colebrook Equation for Flow Friction Based on Pade Polynomials
Pavel Praks, Dejan Brkic
The 80 year-old empirical Colebrook function, widely used as an informal standard for hydraulic resistance, relates implicitly the unknown flow friction factor, with the known Reyn…