Abstract: In application of the volume balance (VB) models, it is generally assumed that the average depth of surface water is constant. This basic assumption may cause significant errors in computing advance. In this paper an ...

Abstract: In application of previous analytical approaches for drip lateral hydraulic computation, it is generally assumed that the emitter outflow along the lateral is constant. This basic assumption may cause significant errors ...

Abstract: The volume balance (VB) algebraic equations based on the power advance assumption (i.e., the time invariance of the subsurface shape factor) may deviate significantly from accurate VB numerical solutions. By systematic ...

Abstract: The behavior of the dimensionless advance curves obtained numerically for various values of infiltration parameter is systematically analyzed. It was found that when the advance problem is expressed in terms of new variables ...

Abstract: Previous continuous-uniform outlet discharge approaches for the hydraulic analysis of irrigation laterals are generally valid for large (theoretically) infinite number of outlets. For a finite number of outlets, however, ...

Abstract: A new analytical continuous-uniform outflow approach that takes into account the effect of the number of outlets on the multidiameter lateral hydraulics is presented. The pressure head profile along the multidiameter ...

Abstract: A simple cost‐efficient model is developed to predict advance phase in border irrigation. Assuming a power function for the water‐depth profile, a volume‐balance equation is applied using an adjusted surface shape factor. ...

Abstract: A new particularly simple equation is derived to solve explicitly the economic design problem of submain lines (microirrigation manifold and sprinkle irrigation submains) with pumping. The appropriate lengths of the submain ...

Abstract: Roughness and infiltration parameters in border irrigation are evaluated with reasonable accuracy and simplicity by iterative analysis of advance‐trajectory data and surface‐depth measurements at a station at or near the ...