کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1719660 1014205 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analytical investigation of laminar flow through expanding or contracting gaps with porous walls
ترجمه فارسی عنوان
بررسی تحلیلی جریان لاپاراسکوپ از طریق شکاف های در حال گسترش یا انقباض با دیواره های متخلخل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی

Laminar, isothermal, incompressible and viscous flow in a rectangular domain bounded by two moving porous walls, which enable the fluid to enter or exit during successive expansions or contractions is investigated analytically using optimal homotopy asymptotic method (OHAM). OHAM is a powerful method for solving nonlinear problems without depending to the small parameter. The concept of this method is briefly introduced, and it׳s application for this problem is studied. Then, the results are compared with numerical results and the validity of these methods is shown. After this verification, we analyze the effects of some physical applicable parameters to show the efficiency of OHAM for this type of problems. Graphical results are presented to investigate the influence of the non-dimensional wall dilation rate (αα) and permeation Reynolds number (ReRe) on the velocity, normal pressure distribution and wall shear stress. The present problem for slowly expanding or contracting walls with weak permeability is a simple model for the transport of biological fluids through contracting or expanding vessels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Propulsion and Power Research - Volume 3, Issue 4, December 2014, Pages 222–229
نویسندگان
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