微动脉血流离散模型的构建与分析

The Construction and Analysis on Blood Flow Discrete Model in Micro-Arteries

微动脉内的血液流动对生物体起着重要的作用 ,为了研究血浆和红细胞对血流的影响 ,建立了血液流动离散模型 ,运用差分法得到血浆速度与血压之间的关系以及红细胞与血浆之间的交换关系式 ,解释了红细胞在微动脉内运动聚集———叠连现象 ,并发现由于红细胞的叠连而引起的某些疾病 (如活动性肺结核、风湿热等 )是由于血浆的变化 ,而不是红细胞本身导致血沉的加快 ,不同地区的重力加速度是导致地区性疾病的一个重要原因 .

Flood flow in micro-arteries takes great efforts on organisms. In order to study how plasma and red blood cells affect blood flow, a flood flow discrete model is established. Both the relationship between velocity of plasma and pressure and exchange relational express between plasma and red blood cells are obtained by using difference methods. In this model, red blood cells' movement and gathering-folded phenomenon are explained. Some diseases (such as activated pulmonary tuberculosis and rheumatic fever etc.) caused by red blood cells' fold are not due to red blood cells themselves but due to the change of plasma that quicken erythrocyte sedimentation rate. Acceleration of gravity in different regions is an important reason that causes regional diseases.