The meaning of HYDRAULIC RADIUS is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wetted perimeter of the conduit.
Therefore, the number of proppants npr in each fracture element can be computed as [5] npr=ae/lpr2. Based on the proppant radius, the initial fracture width can also be calculated. For example, if the proppant radius is represented as R, then the initial fracture width, x0 is 2R. ...
1.A water pump in which the downward flow of naturally running water is intermittently halted by a valve so that the flow is forced upward through an open pipe into a reservoir. 2.The large output piston of a hydraulic press. American Heritage® Dictionary of the English Language, Fifth ...
Radius of curvature of pipe bend (m) r Radius of the pipe (m) Re Reynolds number (−) s Specific gravity (−) SA Surface area (m2) S Spacing (m) t Thickness (m) V Velocity (m/sec) Vo Volume (m3) X X direction (m) Y Y direction (m) Greek symbols ϒ Specific weight ...
Now is a good time to measure and make note of the diameter of the bottom of the piston. In this case it measures 1.375 inches. Squaring half that diameter (the radius) and multiplying that by Pi (3.1416) yields an area of the bottom of the piston of 1.5 square inches. (3.1416 x ...
In the CFD-DEM coupling simulation, the particle phase mesh does not affect the liquid phase mesh. EDEM mesh is used for particle tracking and retrieval, which affects the simulation speed. EDEM grid size is generally set to 3–5 times particle radius to maintain particle simulation accuracy [...
As you can see, the hydraulic radius of a full pipe is simply half of its radius. 2. Pipe (less than full) The problem gets a bit more complicated when the pipe is only partially filled. We already calculated this wetted perimeter in the wetted perimeter of a pipe section: P = r ×...
The inlet and outlet pipe have a radius of 4 mm and a length of 10 mm. The half-circle mixing chamber has a radius of 25 mm and a height identical to the test section area. The heated block has a thickness of 5 mm. The heat flux shown in Figure 1a is applied at the bottom of...
where 𝑇T is the formation temperature, 𝑟r is radial distance from the center of the wellbore, 𝑟ℎrh is the outside radius of the wellbore, commonly represented as the interface between cement and formation. 𝜏τ is the injection time, 𝑎a is thermal diffusion coefficient of the...