scholarly journals SIMULATION OF BODY FLOW WITH A SEPARATED LIQUID FLOW IN A COMSOL MULTIPHYSICS ENVIRONMENT

2021 ◽  
pp. 34-37
Author(s):  
IRINA VLADIMIROVNA VERKHOTUROVA ◽  
Keyword(s):  
Boundary Layer ◽  
Laminar Flow ◽  
Incompressible Fluid ◽  
Liquid Flow ◽  
Viscous Incompressible Fluid ◽  
Comsol Multiphysics ◽  
Geometric Shapes ◽  
Streamlined Body

The article presents the results of using the COMSOL Multiphysics environment to perform one of the laboratory works of the Aerodynamics module of the Hydrogas and Aerodynamics discipline. In the COMSOL Multiphysics environment, it is proposed to simulate the process of a laminar flow of a viscous incompressible fluid around bodies of various geometric shapes, which allows you to visually visualize the boundary layer, its separation from the surface of the streamlined body.

scholarly journals Extending the utility of perturbation series in problems of laminar flow in a porous pipe and a diverging channel

1999 ◽  
Vol 41 (1) ◽  
pp. 118-128 ◽  
Author(s):  
O. D. Makinde
Keyword(s):  
Reynolds Number ◽  
Laminar Flow ◽  
Incompressible Fluid ◽  
Taylor Series ◽  
Flow Separation ◽  
Viscous Incompressible Fluid ◽  
Internal Flow ◽  
Perturbation Series ◽  
Porous Pipe ◽  
Diverging Channel

AbstractIn this paper, we exploit a new series summation and convergence improvement technique (that is, Drazin and Tourigny [5]), in order to study the steady flow of a viscous incompressible fluid both in a porous pipe with moving walls and an exponentially diverging asymmetrical channel. The solutions are expanded into Taylor series with respect to the corresponding Reynolds number. Using the D-T method, the bifurcation and the internal flow separation studies are performed.

Laminar Flow of a Viscous Incompressible Fluid Between Two Eccentric Rotating Spheres with Non-Uniform Transpiration

2012 ◽  
Vol 38 (10) ◽  
pp. 2831-2843
Author(s):  
Mohammad Mohammadiun ◽  
Omid Mahian ◽  
Ali Jabari Moghadam ◽  
Hamid Mohammadiun
Keyword(s):  
Laminar Flow ◽  
Incompressible Fluid ◽  
Viscous Incompressible Fluid

Joule heating effect on magnetohydrodynamic mixed convection boundary layer flow with variable electrical conductivity

2013 ◽  
Vol 23 (2) ◽  
pp. 275-288 ◽  
Author(s):  
Anwar Hossain ◽  
Rama Subba Reddy Gorla
Keyword(s):  
Magnetic Field ◽  
Boundary Layer ◽  
Mixed Convection ◽  
Incompressible Fluid ◽  
Transverse Magnetic Field ◽  
Joule Heating ◽  
Viscous Incompressible Fluid ◽  
Transverse Magnetic ◽  
Content Type ◽  
Electrically Conducting

PurposeThe paper's aim is to investigate the mixed convection flow of an electrically conducting and viscous incompressible fluid past an isothermal vertical surface with Joule heating in the presence of a uniform transverse magnetic field fixed relative to the surface. It was assumed that the electrical conductivity of the fluid varies linearly with the transverse velocity component.Design/methodology/approachThe governing boundary layer equations were solved numerically. The boundary layer equations were first reduced to a convenient form by using two different formulations, namely, (i) the stream function formulation (SFF) and (ii) primitive variable formulation (PVF).FindingsIt was observed that both the local shear‐stress and Nusselt number increase with increasing value of local magnetic parameter, ξ.Research limitations/implicationsIn the present investigation, we investigated the effects of Joule heating on MHD mixed convection boundary layer flow of an electrically conducting viscous incompressible fluid past an isothermal vertical flat plate in the presence of a transverse magnetic field fixed relative to the surface of the plate. The analysis was valid for a steady, two dimensional laminar flow. An extension to three dimensional flow case is left for future work.Practical implicationsHere we have analyzed the problem of mixed convection flow of electrically conducting and viscous incompressible fluid past an isothermal vertical surface with viscous and Joule heating in presence of a uniform transverse magnetic field fixed relative to the surface. The work would be useful in the thermal management of heat transfer devices.Originality/valueThe results of this study may be of interest to engineers interested in heat exchanger design.

An experimental investigation of high Reynolds number steady streaming generated by oscillating cylinders

1974 ◽  
Vol 64 (3) ◽  
pp. 589-598 ◽  
Author(s):  
Arnold F. Bertelsen
Keyword(s):  
Boundary Layer ◽  
Experimental Investigation ◽  
Reynolds Number ◽  
Incompressible Fluid ◽  
High Reynolds Number ◽  
Viscous Incompressible Fluid ◽  
Steady Streaming ◽  
Harmonic Motion ◽  
High Reynolds ◽  
Good Agreement

The steady streaming generated in the boundary layer on a cylinder performing simple harmonic motion in a viscous incompressible fluid which is otherwise at rest is investigated in the case where the Reynolds numberRsassociated with this streaming is large. Comparison is made between experimental results obtained here and the theories of Riley (1965) and Stuart (1966). This comparison shows good agreement between the theories and the experiment close to the cylinder, but away from the cylinder significant discrepancies are observed. Possible reasons for these discrepancies are discussed.

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