Generalized fundamental solutions for unsteady viscous flows.
@article{Shu2001GeneralizedFS, title={Generalized fundamental solutions for unsteady viscous flows.}, author={Jian-Jun Shu and Allen T. Chwang}, journal={Physical review. E, Statistical, nonlinear, and soft matter physics}, year={2001}, volume={63 5 Pt 1}, pages={ 051201 } }
A number of closed-form fundamental solutions for generalized unsteady Oseen and Stokes flows associated with arbitrary time-dependent translational and rotational motions have been developed. These solutions are decomposed into two parts corresponding to a longitudinal wave and a transversal wave. As examples of application, the hydrodynamic forces acting on a sphere and on a circular cylinder translating in an unsteady rotating flow field at low Reynolds numbers are calculated using the…
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References
SHOWING 1-10 OF 14 REFERENCES
A singularity method for unsteady linearized flow
- Engineering
- 1989
Oscillatory viscous flow in the presence of particles is considered. The flow is represented in terms of fundamental solutions to the governing unsteady Stokes equation including the oscillating…
Asymptotic solutions for two-dimensional low Reynolds number flow around an impulsively started circular cylinder
- Engineering, PhysicsJournal of Fluid Mechanics
- 1997
The unsteady flow field of an incompressible viscous fluid around an impulsively started cylinder with slow motion is studied in detail. Integral expressions are derived from the nonlinear vorticity…
Hydromechanics of low-Reynolds-number flow. Part 2. Singularity method for Stokes flows
- MathematicsJournal of Fluid Mechanics
- 1975
The present study further explores the fundamental singular solutions for Stokes flow that can be useful for constructing solutions over a wide range of free-stream profiles and body shapes. The…
Introduction to Theoretical and Computational Fluid Dynamics
- Physics
- 1996
Preface Note to the Instructor Note to the Reader 1 Kinematic structure of a flow 2 Kinematic analysis of a flow 3 Stresses, the equation of motion, and vorticity transport 4 Hydrostatics 5 Exact…
Unsteady flow past a sphere at low Reynolds number
- EngineeringJournal of Fluid Mechanics
- 1981
This paper complements an earlier paper by Bentwich & Miloh in which the matched asymptotic expansion type of solution is presented for an unsteady low-Reynolds-number flow past a sphere when a…
The slow motion of a sphere in a rotating, viscous fluid
- Mathematics, PhysicsJournal of Fluid Mechanics
- 1964
The uniform, slow motion of a sphere in a viscous fluid is examined in the case where the undisturbed fluid rotates with constant angular velocity Ω and the axis of rotation is taken to coincide with…
Hydromechanics of low-Reynolds-number flow. Part 5. Motion of a slender torus
- EngineeringJournal of Fluid Mechanics
- 1979
In order to elucidate the general Stokes flow characteristics present for slender bodies of finite centre-line curvature the singularity method for Stokes flow has been employed to construct…
The hydrodynamic force on a rigid particle undergoing arbitrary time-dependent motion at small Reynolds number
- Physics, EngineeringJournal of Fluid Mechanics
- 1993
The hydrodynamic force acting on a rigid spherical particle translating with arbitrary time-dependent motion in a time-dependent flowing fluid is calculated to O(Re) for small but finite values of…
Microhydrodynamics: Principles and Selected Applications
- Chemistry
- 1991
This text focuses on determining the motion of particles through a viscous fluid in bounded and unbounded flow. Its central theme is the mobility relation between particle motion and forces, and…
Boundary Integral and Singularity Methods for Linearized Viscous Flow: Index
- Mathematics
- 1992
1. Preliminaries 2. Green's Functions and the Boundary Integral Equation 3. Green's Functions in domains bounded by a solid surface 4. Generalized boundary integral methods 5. Interfacial motion 6.…