21. Equation ( ) is the momentum equation , giving the balance between forces and momentum change rates. 22. In these flows, mass and momentum equations can be combined to yield a kinematic wave equation. 23. These equations consist of the continuity and momentum equations for conduits and a volume continuity equation at nodes. 24. Models which use the entire vertical momentum equation are known as "'nonhydrostatic " '. 25. Shown below are the above momentum equations with the most common application of " F ": 26. In addition to the filtered mass and momentum equations , filtering the kinetic energy equation can provide additional insight. 27. The force exerted by the structure on the fluid is then interpolated as a source term in the momentum equation using 28. In that case, and for a constant density, the momentum equations of the Euler equations can be integrated to: 29. Here we consider a three-dimensional Oldroyd-B model coupled with the momentum equation and the total stress tensor. 30. The momentum equation can be applied to determine the force exerted by water on a sluice gate ( Figure 7 ).
