Thermal Radiation and Magnetohydrodynamic Effects on Electroosmotic Blood Flow in a Catheterized Multiple-Stenosed Artery
HEAT TRANSFER, 2026 (ESCI, Scopus)
- Publication Type: Article / Article
- Publication Date: 2026
- Doi Number: 10.1002/htj.70310
- Journal Name: HEAT TRANSFER
- Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
- Azerbaijan State University of Economics (UNEC) Affiliated: No
Abstract
Arterial diseases, caused by formation of stenoses, pose significant risks to cardiovascular health and can lead to heart attacks and strokes. In medical sciences, catheterization is a common procedure used to diagnose or treat such conditions, where the insertion and movement of a catheter within the stenosed artery may significantly alter local hemodynamics. Understanding the interplay between catheter motion and blood flow becomes increasingly complex when physical effects such as magnetic fields, thermal radiation, and electroosmosis are present. Magnetic fields are often applied for targeted drug delivery or imaging purposes, while thermal radiation effects can arise due to surrounding tissue heating during medical treatments. Electroosmosis, resulting from the interaction between the charged walls of the artery and the ionic components of blood, can affect the blood motion in the catheterized artery. In view of this, the present study investigates how various catheter motions, namely antegrade, stationary, and retrograde affect blood flow rheology in an artery with multiple stenoses. The analysis also accounts for the effects of thermal radiation, electroosmosis, and an applied magnetic field. Casson fluid model is used to model rheology of blood. The Poisson-Boltzmann equation is solved to derive the electric double layer potential function which is expressed in terms of Bessel functions. To simplify the momentum and energy equations obtained from the modified Navier-Stokes equations, the Debye-H & uuml;ckel linearization and Rosseland approximation are employed. The resulting coupled partial differential equations are solved using the homotopy perturbation method. It is concluded that the blood velocity decreases slightly with increasing magnetic field strength. The results further indicate that electroosmosis influences blood flow by enhancing velocity near the arterial wall while reducing it near the catheter wall. In the presence of antegrade catheter motion, the blood temperature is the highest compared to stationary and retrograde catheter motions. The findings of this study is essential for improving the safety and effectiveness of catheter-based treatments.