Arif Fatahillah

Pendidikan Matematika FKIP Universitas Jember

Anastya Widad Kamal

Pendidikan Matematika FKIP Universitas Jember

Rafiantika Megahnia Prihandini

Pendidikan Matematika FKIP Universitas Jember

DOI: https://doi.org/10.19184/kdma.v14i3.53687 

ABSTRACT 

Narrowing of the renal arteries is an abnormal condition in the kidney blood vessels caused by atherosclerosis due to the buildup of lipids in the blood vessel walls. Renal artery narrowing is one of the most common causes of renovascular hypertension. Renovascular hypertension is a disease of high blood pressure caused by the narrowing of the renal arteries, which causes hypoperfusion in the kidneys. The mathematical model is built using the finite volume method and will then be solved numerically using the SIMPLE algorithm. Based on the results of this simulation, we will know what level of narrowing (30–90% stenosed) of the renal artery is prone to causing renovascular hypertension in the kidney. The study results show that a 90% thickness can be dangerous because at this level of narrowing, the blood flow rate exceeds normal limits, and the pressure on the artery walls also increases. In contrast, the type of flow that appears becomes laminar.

Keywords: Renal Artery Stenosis, Finite Volume Method, SIMPLE Algorithm

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