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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Biomech Model Mechanobiol. 2018 Apr 11;17(4):1069–1082. doi: 10.1007/s10237-018-1014-y

Fig. 1.

Fig. 1

Schematic of the computational domain for the bolus-esophageal-gastric model. The esophageal segment was connected to a hole of an ellipsoid-shaped stomach to form the EGJ. The LES was within the lower 30-mm of the esophageal segment, here referred to as the LES segment. The right (left) side of the LES segment is referred to as the part with a positive (negative) y-coordinate. The proximal part of the esophageal segment was initially filled with the bolus and the distal part with a thin liquid layer. The proximal end of the esophageal segment was fixed using the penalty method. The top surface of the rectangular computational domain had zero-velocity boundary conditions. All the other five surfaces had traction-free boundary conditions.