COMPUTATIONAL FLUID DYNAMICS ANALYSIS ON OVERWEIGHT SLEEP APNEA PATIENT UNDER VARIOUS BREATHING FLOW PATTERNS

Obstructive Sleep Apnea (OSA) is a breathing disorder that occurs during sleep. This syndrome affects numerous people, especially those with abnormal body fat composition parameters such as mass index (BMI) of more than 25 kg/m2 (overweight & obesity). OSA ensues when the tongue and soft palate muscles in relaxed condition move towards gravity patient supine position; this causes narrowing blockage on upper airway affecting breathing. There are several treatments for OSA, including surgery. A better understanding airflow characteristics will assist ENT surgeons identifying area. paper examines overweight sleep apnea patients. The narrow area respiratory tract turbulence formation evaluated using Computational Fluid Dynamic (CFD) based an actual parameter 3D model obtained by CT scan image result. Reynold’s averaged Navier-Stoke (RANS) equation turbulent model, k-ω shear stress transport (SST), were applied. Airflow fluctuation was characterized crucial velocity, pressure, kinetic energy (TKE). result shows cross-sectional accretion velocity pressure pharyngeal airway. increasing results high (TKE) determine severity level Investigating patients help medical practitioner validate