Experimental and numerical investigation of similar to ow behaviors of some selected food supplements in modeled intestine

This study presents the similar to ow of Hibiscus Sabdariffa Roselle (Sobo), Soymilk (Soya), and Pap (Ogi) through a modeled intestine. Experimental and Computational Fluid Dynamics (CFD) techniques were employed, while Autodesk Inventor 2020 version was used to draw the 3D computational model of the human intestine. ANSYS Fluent 16.0 was utilized as a CFD solver. Deformed boundary walls of the Navier-stokes equations of similar to uid similar to ow were used for modeling. The results showed that similar to uid velocity, pressure, density, and viscosity significantly affected the similar to ow behavior of nutrients in the intestinal walls. The density and viscosity of the investigated similar to uids ranged between 800{1024 kg/m3 and 0.316{1.095 Pas, respectively, while the maximum and minimum viscosities were observed with Ogi and Sobo, respectively. The highest drop in the velocity along the whole length of the intestinal model ranged between 0.8 and 1.5 m, which corresponded to the pulsating section of the model. The maximum and minimum Reynolds numbers were recorded with Sobo and Ogi samples, respectively. To ensure effective similar to ow and avoid complications when taking food supplements, a similar to ow velocity of 0.005 m/s is recommended. The presence of villi in the intestinal wall augmented heat transfer.