STUDY OF FLUID DYNAMICS IN BIOLOGICAL SYSTEMS, INCLUDING BLOOD FLOW, RESPIRATION, AND AQUATIC LOCOMOTION

Abstract

The study of fluid dynamics within biological systems plays a pivotal role in understanding how organisms sustain life through the movement of fluids such as blood, air, and water. This research investigates the complex flow behaviors observed in three key domains: cardiovascular circulation, pulmonary ventilation, and aquatic locomotion. Utilizing a mixed-methods approach combining computational fluid dynamics (CFD), in vivo measurements, and experimental flow visualization, the study characterizes laminar and turbulent regimes, vortex formations, shear stresses, and flow-induced pressure gradients. In the cardiovascular system, simulations revealed critical wall shear stress patterns associated with vascular pathologies, while respiratory modeling emphasized airflow optimization through bronchial geometries. In aquatic locomotion, flow streamlining and thrust generation were assessed in biologically inspired forms. The results provide deep insights into how structural adaptations across species promote efficient transport and motion in fluid environments. By integrating computational and empirical data, this work advances the foundational understanding of biomechanics and offers pathways for innovations in biomedical engineering, prosthetic design, and bioinspired robotics. The findings underscore the interdependence of biological structure and fluid behavior, establishing a framework for further cross-disciplinary exploration.