Academic Journal
Multivariate Peristalsis in a Straight Rectangular Duct for Carreau Fluids
| العنوان: | Multivariate Peristalsis in a Straight Rectangular Duct for Carreau Fluids |
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| المؤلفون: | Iosif C. Moulinos, Christos Manopoulos, Sokrates Tsangaris |
| المصدر: | Computation, Vol 12, Iss 3, p 62 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | rectilinear duct peristalsis, shear-dependent fluids, pumping characteristic, multimodal peristaltic pulse, curvilinear immersed boundary method, Electronic computers. Computer science, QA75.5-76.95 |
| الوصف: | Peristaltic flow in a straight rectangular duct is examined imposed by contraction pulses implemented by pairs of horizontal cylindrical segments with their axes perpendicular to the flow direction. The wave propagation speed is considered in such a range that triggers a laminar fluid motion. The setting is analyzed over a set of variables which includes the propagation speed, the relative occlusion, the modality of the squeezing pulse profile and the Carreau power index. The numerical solution of the equations of motion on Cartesian meshes is grounded in the immersed boundary method. An increase in the peristaltic pulse modality leads to the reduction in the shear rate levels on the central tube axis and to the movement of the peristaltic characteristics to higher pressure values. The effect of the no slip side walls (NSSWs) is elucidated by the collation with relevant results for the flow field produced under the same assumptions though with slip side walls (SSWs). Shear thinning behavior exhibits a significantly larger effect on transport efficiency for the NSSWs duct than on the SSWs duct. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2079-3197 |
| Relation: | https://www.mdpi.com/2079-3197/12/3/62; https://doaj.org/toc/2079-3197; https://doaj.org/article/18edbc0a3ca0404b996acb239d9636db |
| DOI: | 10.3390/computation12030062 |
| الاتاحة: | https://doi.org/10.3390/computation12030062 https://doaj.org/article/18edbc0a3ca0404b996acb239d9636db |
| رقم الانضمام: | edsbas.A7800F93 |
| قاعدة البيانات: | BASE |
| تدمد: | 20793197 |
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| DOI: | 10.3390/computation12030062 |