An improved k-ω turbulence model for viscoelastic fluids is developed to predict turbulent flows, with polymeric solutions described by the finitely extensible nonlinear elastic-Peterlin constitutive model. The tested against a wide range of direct numerical simulation data in fully-developed channel flow, different rheological parameter combinations, and can all regimes drag reduction (low, in...

Bu Araştırmada Kuvvet Ve Enerji Ünitesinde Robotik Kodlama Etkinliklerinin Ortaokul Öğrencilerinin Fene Yönelik Tutumlarına Etkisi Araştırılmıştır. Araştırmanın Örneklemini Ankara İli Çubuk İlçesinde Bulunan Bir Ortaokulun Yedinci Sınıfında 2019–2020 Eğitim–Öğretim Yılı Güz Döneminde Öğrenim Gören 45 Öğrenci Oluşturmaktadır. Ön Test Son Kontrol Gruplu Yarı Deneysel Desen Kullanılmıştır. Veriler...

The intracellular polymerization of deoxy-sickle cell hemoglobin (HbS) has been identified as the main cause of sickle cell disease. Therefore, the material properties and biomechanical behavior of polymerized HbS fibers is a topic of intense research interest. A solvent-free coarse-grain molecular dynamics (CGMD) model is developed to represent a single hemoglobin fiber as four tightly bonded ...

The problem of pure thermovibrational flow in a two-dimensional square cavity containing viscoelastic liquid is investigated the framework numerical approach based on governing balance equations for mass, momentum, and energy their complete non-linear time-dependent form. For closure, these are complemented with transport equation elastic stress formulated using finitely extensible nonlinear Ch...

We construct a general family of Galerkin methods for the numerical approximation of weak solutions to a coupled microscopic-macroscopic bead-spring model that arises from the kinetic theory of dilute solutions of polymeric liquids with noninteracting polymer chains. The model consists of the unsteady incompressible Navier– Stokes equations in a bounded domain Ω ⊂ Rd, d = 2 or 3, for the veloci...