A new 3D hydrogradient test instrument

The purpose of this study is to design and construct an instrument for assessing threedimensional hydraulic gradients based on the hydrogradient mathematical model in porous media. In order to properly investigate flow in porous media, three-dimensional details must be taken into consideration. Therefore, Mohr cyclides, which can be presented in three dimensions, are used and a beneficial instrument is designed and constructed based on the non-collinearity of the flow vector q and gradient vector J . The cyclide surface is a geometric locus for all possible states of flow movement in a porous media field; depending on the field s hydraulic gradient components, in which one of these flow movements will occur. By specifying the values of the hydraulic gradient components, the flow direction will be assigned.