Three Dimensional Fluid Structure Interaction Modeling of Hemodynamics with Continuous Postures

Abstract A sudden postural change may produce symptoms or even syncope mainly due to orthostatic hypotension. To date, most hemodynamic studies in postural change focus on the response of static and definite postures. To quantify cardiovascular hemodynamics characteristics during continuous posture, we developed a three-dimensional fluid-structure interaction mathematical model of hemodynamics with continuous posture. In this model, the rotating inertial forces were introduced. By the finite element method, the distribution of blood flow pressure (DBFP) in the inner carotid artery in ±90° postures was numerically simulated with rotation and gravity concerned or not. The simulations are as follows: (1) whether gravity was considered or not, the DBFP varied from two-dimensional axisymmetrical distribution without rotation to three-dimensional asymmetrical one with rotation considered, and extreme pressures occurred in the same positions in the two cases. (2) The effect intensity of rotation is larger than the effect intensity of gravity. So, unlike gravity, rotation affected the DBFP. This indicates that hemodynamic characteristics in certain position during dynamic change of posture obviously differ from that in static and definite posture. This study may provide a novel way to characterize hemodynamics during continuous posture, and consequently help to evaluate the syncope patients, astronauts or pilots and athletes with unexplained syncope more accurately.

Keywords Blood flow pressure, Continuous posture, Gravity, Hemodynamics, Mathematical Model, Rotation, Syncope.

Click here to Download Full Paper


Three Dimensional Fluid Structure Interaction Modeling of Hemodynamics

AD Publications is a rapidly growing academic publisher in the fields of Engineering, Medical-Health, Environmental Science and Agriculture Research. AD Publications is a registered organization broad-based open access and publishes most exciting researches with respect to the subjects of our journals. The Journals is being indexed and abstracted by all major global current awareness and alerting services.
The organization aims at undertaking, co- coordinating and promoting research and development. It provides professional and academic guidance in the field of basic education, Higher Education as well in the Technical Education. Our Aims is to Promote and support, High Quality basic, Scientific Research and development in fields of Engineering, Medical-Health, Environmental Science and Agriculture Research and to Generate Public awareness, provide advice to scholar’s researchers and communicate research outcomes.

Some Important Links About Research Journal
International Journal
Agriculture Journal
Medical Journal
Environmental Journal
Engineering Journal

Translate »