방법 비교

	벤켈호셀 모형	CFD 혈역학	광혈류측정법
분야	생체역학	생체역학	생체역학
계열	Process / pipeline	Process / pipeline	Process / pipeline
기원 연도	1969	2002	1937
창시자	Nikolaos Westerhof	David Steinman	Hertzman
유형	Physiological lumped-parameter modeling	Multi-physics finite element simulation	Optical signal acquisition and analysis pipeline
원전	Westerhof, N., Bosman, F., De Vries, N. C., & Noordergraaf, A. (1969). Analog studies of the human systemic arterial tree. Journal of Biomechanics, 2(2), 121-143.	Steinman, D. A., Vinh, B., Ethier, C. R., Ojha, M., Cobbold, R. S., & Johnston, K. W. (2002). A numerical simulation of flow in a two-dimensional end-to-side anastomosis model. Journal of Biomechanical Engineering, 115(1), 112-118.	Allen, J. (2007). Photoplethysmography and its application in clinical physiology. Physiology & Behavior, 107(4), 540-548.
별칭	Elastic chamber model, Arterial compliance model, Lumped parameter model	Cardiovascular CFD, Blood flow simulation, Hemodynamic simulation	PPG, Pulse oximetry, Reflectance photometry
관련	3	3	3
요약	The Windkessel model is a lumped-parameter representation of the arterial system that captures the pulsatile dynamics of blood flow and pressure using simple mechanical analogs (resistors and capacitors). Named after the German word for air chamber, it was formalized by Westerhof and colleagues in the late 1960s and remains fundamental to understanding arterial hemodynamics and blood pressure regulation.	Computational fluid dynamics (CFD) for hemodynamics solves the Navier-Stokes equations to simulate blood flow in realistic vascular geometries. Pioneered by researchers such as David Steinman, CFD hemodynamics reveals complex flow patterns, wall shear stress distributions, and hemodynamic factors implicated in atherosclerosis, aneurysm rupture, and device-induced thrombosis.	Photoplethysmography (PPG) measures blood volume changes in tissue using light absorption, providing a non-invasive optical window into cardiovascular dynamics. Originally developed by Hertzman in 1937, PPG is now ubiquitous in pulse oximetry, smartwatches, and research applications for monitoring heart rate, blood oxygenation, and vascular function.